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OCDMA</title> <meta name="description" content="Search results for: OCDMA"> <meta name="keywords" content="OCDMA"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none navbar-toggler ml-auto" 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class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="OCDMA"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 9</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: OCDMA</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">9</span> Bit Error Rate (BER) Performance of Coherent Homodyne BPSK-OCDMA Network for Multimedia Applications</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Morsy%20Ahmed%20Morsy%20Ismail">Morsy Ahmed Morsy Ismail</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, the structure of a coherent homodyne receiver for the Binary Phase Shift Keying (BPSK) Optical Code Division Multiple Access (OCDMA) network is introduced based on the Multi-Length Weighted Modified Prime Code (ML-WMPC) for multimedia applications. The Bit Error Rate (BER) of this homodyne detection is evaluated as a function of the number of active users and the signal to noise ratio for different code lengths according to the multimedia application such as audio, voice, and video. Besides, the Mach-Zehnder interferometer is used as an external phase modulator in homodyne detection. Furthermore, the Multiple Access Interference (MAI) and the receiver noise in a shot-noise limited regime are taken into consideration in the BER calculations. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=OCDMA%20networks" title="OCDMA networks">OCDMA networks</a>, <a href="https://publications.waset.org/abstracts/search?q=bit%20error%20rate" title=" bit error rate"> bit error rate</a>, <a href="https://publications.waset.org/abstracts/search?q=multiple%20access%20interference" title=" multiple access interference"> multiple access interference</a>, <a href="https://publications.waset.org/abstracts/search?q=binary%20phase-shift%20keying" title=" binary phase-shift keying"> binary phase-shift keying</a>, <a href="https://publications.waset.org/abstracts/search?q=multimedia" title=" multimedia"> multimedia</a> </p> <a href="https://publications.waset.org/abstracts/142901/bit-error-rate-ber-performance-of-coherent-homodyne-bpsk-ocdma-network-for-multimedia-applications" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/142901.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">175</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">8</span> Performance Analysis of Multichannel OCDMA-FSO Network under Different Pervasive Conditions</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Saru%20Arora">Saru Arora</a>, <a href="https://publications.waset.org/abstracts/search?q=Anurag%20Sharma"> Anurag Sharma</a>, <a href="https://publications.waset.org/abstracts/search?q=Harsukhpreet%20Singh"> Harsukhpreet Singh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> To meet the growing need of high data rate and bandwidth, various efforts has been made nowadays for the efficient communication systems. Optical Code Division Multiple Access over Free space optics communication system seems an effective role for providing transmission at high data rate with low bit error rate and low amount of multiple access interference. This paper demonstrates the OCDMA over FSO communication system up to the range of 7000 m at a data rate of 5 Gbps. Initially, the 8 user OCDMA-FSO system is simulated and pseudo orthogonal codes are used for encoding. Also, the simulative analysis of various performance parameters like power and core effective area that are having an effect on the Bit error rate (BER) of the system is carried out. The simulative analysis reveals that the length of the transmission is limited by the multi-access interference (MAI) effect which arises when the number of users increases in the system. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=FSO" title="FSO">FSO</a>, <a href="https://publications.waset.org/abstracts/search?q=PSO" title=" PSO"> PSO</a>, <a href="https://publications.waset.org/abstracts/search?q=bit%20error%20rate%20%28BER%29" title=" bit error rate (BER)"> bit error rate (BER)</a>, <a href="https://publications.waset.org/abstracts/search?q=opti%20system%20simulation" title=" opti system simulation"> opti system simulation</a>, <a href="https://publications.waset.org/abstracts/search?q=multiple%20access%20interference%20%28MAI%29" title=" multiple access interference (MAI)"> multiple access interference (MAI)</a>, <a href="https://publications.waset.org/abstracts/search?q=q-factor" title=" q-factor"> q-factor</a> </p> <a href="https://publications.waset.org/abstracts/48171/performance-analysis-of-multichannel-ocdma-fso-network-under-different-pervasive-conditions" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/48171.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">365</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">7</span> Performance Analysis and Comparison of Various 1-D and 2-D Prime Codes for OCDMA Systems</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Gurjit%20Kaur">Gurjit Kaur</a>, <a href="https://publications.waset.org/abstracts/search?q=Shashank%20Johri"> Shashank Johri</a>, <a href="https://publications.waset.org/abstracts/search?q=Arpit%20Mehrotra"> Arpit Mehrotra</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper we have analyzed and compared the performance of various coding schemes. The basic ID prime sequence codes are unique in only dimension i.e. time slots whereas 2D coding techniques are not unique by their time slots but with their wavelengths also. In this research we have evaluated and compared the performance of 1D and 2D coding techniques constructed using prime sequence coding pattern for OCDMA system on a single platform. Results shows that 1D Extended Prime Code (EPC) can support more number of active users compared to other codes but at the expense of larger code length which further increases the complexity of the code. Modified Prime Code (MPC) supports lesser number of active users at 位c=2 but it has a lesser code length as compared to 1D prime code. Analysis shows that 2D prime code supports lesser number of active users than 1D codes but they are having large code family and are the most secure codes compared to other codes. The performance of all these codes is analyzed on basis of number of active users supported at a Bit Error Rate (BER) of 10-9. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=CDMA" title="CDMA">CDMA</a>, <a href="https://publications.waset.org/abstracts/search?q=OCDMA" title=" OCDMA"> OCDMA</a>, <a href="https://publications.waset.org/abstracts/search?q=BER" title=" BER"> BER</a>, <a href="https://publications.waset.org/abstracts/search?q=OOC" title=" OOC"> OOC</a>, <a href="https://publications.waset.org/abstracts/search?q=PC" title=" PC"> PC</a>, <a href="https://publications.waset.org/abstracts/search?q=EPC" title=" EPC"> EPC</a>, <a href="https://publications.waset.org/abstracts/search?q=MPC" title=" MPC"> MPC</a>, <a href="https://publications.waset.org/abstracts/search?q=2-D%20PC%2FPC" title=" 2-D PC/PC"> 2-D PC/PC</a>, <a href="https://publications.waset.org/abstracts/search?q=%CE%BBc" title=" 位c"> 位c</a>, <a href="https://publications.waset.org/abstracts/search?q=%CE%BBa" title=" 位a"> 位a</a> </p> <a href="https://publications.waset.org/abstracts/35194/performance-analysis-and-comparison-of-various-1-d-and-2-d-prime-codes-for-ocdma-systems" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/35194.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">510</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6</span> Design and Performance Improvement of Three-Dimensional Optical Code Division Multiple Access Networks with NAND Detection Technique</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Satyasen%20Panda">Satyasen Panda</a>, <a href="https://publications.waset.org/abstracts/search?q=Urmila%20Bhanja"> Urmila Bhanja</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, we have presented and analyzed three-dimensional (3-D) matrices of wavelength/time/space code for optical code division multiple access (OCDMA) networks with NAND subtraction detection technique. The 3-D codes are constructed by integrating a two-dimensional modified quadratic congruence (MQC) code with one-dimensional modified prime (MP) code. The respective encoders and decoders were designed using fiber Bragg gratings and optical delay lines to minimize the bit error rate (BER). The performance analysis of the 3D-OCDMA system is based on measurement of signal to noise ratio (SNR), BER and eye diagram for a different number of simultaneous users. Also, in the analysis, various types of noises and multiple access interference (MAI) effects were considered. The results obtained with NAND detection technique were compared with those obtained with OR and AND subtraction techniques. The comparison results proved that the NAND detection technique with 3-D MQC\MP code can accommodate more number of simultaneous users for longer distances of fiber with minimum BER as compared to OR and AND subtraction techniques. The received optical power is also measured at various levels of BER to analyze the effect of attenuation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Cross%20Correlation%20%28CC%29" title="Cross Correlation (CC)">Cross Correlation (CC)</a>, <a href="https://publications.waset.org/abstracts/search?q=Three%20dimensional%20Optical%20Code%20Division%20Multiple%20Access%20%283-D%20OCDMA%29" title=" Three dimensional Optical Code Division Multiple Access (3-D OCDMA)"> Three dimensional Optical Code Division Multiple Access (3-D OCDMA)</a>, <a href="https://publications.waset.org/abstracts/search?q=Spectral%20Amplitude%20Coding%20Optical%20Code%20Division%20Multiple%20Access%20%28SAC-OCDMA%29" title=" Spectral Amplitude Coding Optical Code Division Multiple Access (SAC-OCDMA)"> Spectral Amplitude Coding Optical Code Division Multiple Access (SAC-OCDMA)</a>, <a href="https://publications.waset.org/abstracts/search?q=Multiple%20Access%20Interference%20%28MAI%29" title=" Multiple Access Interference (MAI)"> Multiple Access Interference (MAI)</a>, <a href="https://publications.waset.org/abstracts/search?q=Phase%20Induced%20Intensity%20Noise%20%28PIIN%29" title=" Phase Induced Intensity Noise (PIIN)"> Phase Induced Intensity Noise (PIIN)</a>, <a href="https://publications.waset.org/abstracts/search?q=Three%20Dimensional%20Modified%20Quadratic%20Congruence%2FModified%20Prime%20%283-D%20MQC%2FMP%29%20code" title=" Three Dimensional Modified Quadratic Congruence/Modified Prime (3-D MQC/MP) code"> Three Dimensional Modified Quadratic Congruence/Modified Prime (3-D MQC/MP) code</a> </p> <a href="https://publications.waset.org/abstracts/57485/design-and-performance-improvement-of-three-dimensional-optical-code-division-multiple-access-networks-with-nand-detection-technique" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/57485.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">412</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">5</span> New Result for Optical OFDM in Code Division Multiple Access Systems Using Direct Detection</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Cherifi%20Abdelhamid">Cherifi Abdelhamid</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In optical communication systems, OFDM has received increased attention as a means to overcome various limitations of optical transmission systems such as modal dispersion, relative intensity noise, chromatic dispersion, polarization mode dispersion and self-phase modulation. The multipath dispersion limits the maximum transmission data rates. In this paper we investigate OFDM system where multipath induced intersymbol interference (ISI) is reduced and we increase the number of users by combining OFDM system with OCDMA system using direct detection Incorporate OOC (orthogonal optical code) for minimize a bit error rate. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=OFDM" title="OFDM">OFDM</a>, <a href="https://publications.waset.org/abstracts/search?q=OCDMA" title=" OCDMA"> OCDMA</a>, <a href="https://publications.waset.org/abstracts/search?q=OOC%20%28orthogonal%20optical%20code%29" title=" OOC (orthogonal optical code)"> OOC (orthogonal optical code)</a>, <a href="https://publications.waset.org/abstracts/search?q=%28ISI%29" title=" (ISI)"> (ISI)</a>, <a href="https://publications.waset.org/abstracts/search?q=prim%20codes%20%28Pc%29" title=" prim codes (Pc)"> prim codes (Pc)</a> </p> <a href="https://publications.waset.org/abstracts/19156/new-result-for-optical-ofdm-in-code-division-multiple-access-systems-using-direct-detection" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/19156.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">652</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">4</span> Zero Cross-Correlation Codes Based on Balanced Incomplete Block Design: Performance Analysis and Applications</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Garadi%20Ahmed">Garadi Ahmed</a>, <a href="https://publications.waset.org/abstracts/search?q=Boubakar%20S.%20Bouazza"> Boubakar S. Bouazza</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The Zero Cross-Correlation (C, w) code is a family of binary sequences of length C and constant Hamming-weight, the cross correlation between any two sequences equal zero. In this paper, we evaluate the performance of ZCC code based on Balanced Incomplete Block Design (BIBD) for Spectral Amplitude Coding Optical Code Division Multiple Access (SAC-OCDMA) system using direct detection. The BER obtained is better than 10-9 for five simultaneous users. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=spectral%20amplitude%20coding-optical%20code-division-multiple-access%20%28SAC-OCDMA%29" title="spectral amplitude coding-optical code-division-multiple-access (SAC-OCDMA)">spectral amplitude coding-optical code-division-multiple-access (SAC-OCDMA)</a>, <a href="https://publications.waset.org/abstracts/search?q=phase%20induced%20intensity%20noise%20%28PIIN%29" title=" phase induced intensity noise (PIIN)"> phase induced intensity noise (PIIN)</a>, <a href="https://publications.waset.org/abstracts/search?q=balanced%20incomplete%20block%20design%20%28BIBD%29" title=" balanced incomplete block design (BIBD)"> balanced incomplete block design (BIBD)</a>, <a href="https://publications.waset.org/abstracts/search?q=zero%20cross-correlation%20%28ZCC%29" title=" zero cross-correlation (ZCC)"> zero cross-correlation (ZCC)</a> </p> <a href="https://publications.waset.org/abstracts/70616/zero-cross-correlation-codes-based-on-balanced-incomplete-block-design-performance-analysis-and-applications" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/70616.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">366</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3</span> Performance Evaluation of One and Two Dimensional Prime Codes for Optical Code Division Multiple Access Systems</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Gurjit%20Kaur">Gurjit Kaur</a>, <a href="https://publications.waset.org/abstracts/search?q=Neena%20Gupta"> Neena Gupta</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, we have analyzed and compared the performance of various coding schemes. The basic ID prime sequence codes are unique in only dimension, i.e. time slots, whereas 2D coding techniques are not unique by their time slots but with their wavelengths also. In this research, we have evaluated and compared the performance of 1D and 2D coding techniques constructed using prime sequence coding pattern for Optical Code Division Multiple Access (OCDMA) system on a single platform. Analysis shows that 2D prime code supports lesser number of active users than 1D codes, but they are having large code family and are the most secure codes compared to other codes. The performance of all these codes is analyzed on basis of number of active users supported at a Bit Error Rate (BER) of 10-9. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=CDMA" title="CDMA">CDMA</a>, <a href="https://publications.waset.org/abstracts/search?q=OCDMA" title=" OCDMA"> OCDMA</a>, <a href="https://publications.waset.org/abstracts/search?q=BER" title=" BER"> BER</a>, <a href="https://publications.waset.org/abstracts/search?q=OOC" title=" OOC"> OOC</a>, <a href="https://publications.waset.org/abstracts/search?q=PC" title=" PC"> PC</a>, <a href="https://publications.waset.org/abstracts/search?q=EPC" title=" EPC"> EPC</a>, <a href="https://publications.waset.org/abstracts/search?q=MPC" title=" MPC"> MPC</a>, <a href="https://publications.waset.org/abstracts/search?q=2-D%20PC%2FPC" title=" 2-D PC/PC"> 2-D PC/PC</a>, <a href="https://publications.waset.org/abstracts/search?q=%CE%BBc" title=" 位c"> 位c</a>, <a href="https://publications.waset.org/abstracts/search?q=%CE%BBa" title=" 位a"> 位a</a> </p> <a href="https://publications.waset.org/abstracts/45035/performance-evaluation-of-one-and-two-dimensional-prime-codes-for-optical-code-division-multiple-access-systems" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/45035.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">337</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2</span> Reduction of Multiple User Interference for Optical CDMA Systems Using Successive Interference Cancellation Scheme</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Tawfig%20Eltaif">Tawfig Eltaif</a>, <a href="https://publications.waset.org/abstracts/search?q=Hesham%20A.%20Bakarman"> Hesham A. Bakarman</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20Alsowaidi"> N. Alsowaidi</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20R.%20Mokhtar"> M. R. Mokhtar</a>, <a href="https://publications.waset.org/abstracts/search?q=Malek%20Harbawi"> Malek Harbawi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In Commonly, it is primary problem that there is multiple user interference (MUI) noise resulting from the overlapping among the users in optical code-division multiple access (OCDMA) system. In this article, we aim to mitigate this problem by studying an interference cancellation scheme called successive interference cancellation (SIC) scheme. This scheme will be tested on two different detection schemes, spectral amplitude coding (SAC) and direct detection systems (DS), using partial modified prime (PMP) as the signature codes. It was found that SIC scheme based on both SAC and DS methods had a potential to suppress the intensity noise, that is to say, it can mitigate MUI noise. Furthermore, SIC/DS scheme showed much lower bit error rate (BER) performance relative to SIC/SAC scheme for different magnitude of effective power. Hence, many more users can be supported by SIC/DS receiver system. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=optical%20code-division%20multiple%20access%20%28OCDMA%29" title="optical code-division multiple access (OCDMA)">optical code-division multiple access (OCDMA)</a>, <a href="https://publications.waset.org/abstracts/search?q=successive%20interference%20cancellation%20%28SIC%29" title=" successive interference cancellation (SIC)"> successive interference cancellation (SIC)</a>, <a href="https://publications.waset.org/abstracts/search?q=multiple%20user%20interference%20%28MUI%29" title=" multiple user interference (MUI)"> multiple user interference (MUI)</a>, <a href="https://publications.waset.org/abstracts/search?q=spectral%20amplitude%20coding%20%28SAC%29" title=" spectral amplitude coding (SAC)"> spectral amplitude coding (SAC)</a>, <a href="https://publications.waset.org/abstracts/search?q=partial%20modified%20prime%20code%20%28PMP%29" title=" partial modified prime code (PMP)"> partial modified prime code (PMP)</a> </p> <a href="https://publications.waset.org/abstracts/33603/reduction-of-multiple-user-interference-for-optical-cdma-systems-using-successive-interference-cancellation-scheme" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/33603.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">521</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1</span> Performance Analysis of SAC-OCDMA System using Different Detectors </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Somaya%20A.%20Abd%20El%20Mottaleb">Somaya A. Abd El Mottaleb</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20Abd%20El%20Aziz"> Ahmed Abd El Aziz</a>, <a href="https://publications.waset.org/abstracts/search?q=Heba%20A.%20Fayed"> Heba A. Fayed</a>, <a href="https://publications.waset.org/abstracts/search?q=Moustafa%20H.%20Aly">Moustafa H. Aly</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, we present the performance of spectral amplitude coding optical code division multiple access using different detectors at different transmission distances using single photodiode detection technique. Modified double weight codes are used as signature codes. Simulation results show that the system using avalanche photo detector can move distance longer than that using positive intrinsic negative photo detector. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=avalanche%20photodiode" title="avalanche photodiode">avalanche photodiode</a>, <a href="https://publications.waset.org/abstracts/search?q=modified%20double%20weight" title=" modified double weight"> modified double weight</a>, <a href="https://publications.waset.org/abstracts/search?q=multiple%20access%20technique" title=" multiple access technique"> multiple access technique</a>, <a href="https://publications.waset.org/abstracts/search?q=single%20photodiode." title=" single photodiode. "> single photodiode. </a> </p> <a href="https://publications.waset.org/abstracts/12035/performance-analysis-of-sac-ocdma-system-using-different-detectors" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/12035.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">605</span> </span> </div> </div> </div> </main> <footer> <div id="infolinks" class="pt-3 pb-2"> <div class="container"> <div style="background-color:#f5f5f5;" class="p-3"> <div class="row"> <div class="col-md-2"> <ul class="list-unstyled"> About <li><a href="https://waset.org/page/support">About Us</a></li> <li><a href="https://waset.org/page/support#legal-information">Legal</a></li> <li><a target="_blank" rel="nofollow" href="https://publications.waset.org/static/files/WASET-16th-foundational-anniversary.pdf">WASET celebrates its 16th foundational anniversary</a></li> </ul> </div> <div class="col-md-2"> <ul class="list-unstyled"> Account <li><a href="https://waset.org/profile">My Account</a></li> </ul> </div> <div class="col-md-2"> <ul class="list-unstyled"> Explore <li><a href="https://waset.org/disciplines">Disciplines</a></li> <li><a href="https://waset.org/conferences">Conferences</a></li> <li><a href="https://waset.org/conference-programs">Conference Program</a></li> <li><a href="https://waset.org/committees">Committees</a></li> <li><a href="https://publications.waset.org">Publications</a></li> </ul> </div> <div class="col-md-2"> <ul class="list-unstyled"> Research <li><a href="https://publications.waset.org/abstracts">Abstracts</a></li> <li><a href="https://publications.waset.org">Periodicals</a></li> <li><a href="https://publications.waset.org/archive">Archive</a></li> </ul> </div> <div class="col-md-2"> <ul class="list-unstyled"> Open Science <li><a target="_blank" rel="nofollow" href="https://publications.waset.org/static/files/Open-Science-Philosophy.pdf">Open Science Philosophy</a></li> <li><a target="_blank" rel="nofollow" href="https://publications.waset.org/static/files/Open-Science-Award.pdf">Open Science Award</a></li> <li><a target="_blank" rel="nofollow" href="https://publications.waset.org/static/files/Open-Society-Open-Science-and-Open-Innovation.pdf">Open Innovation</a></li> <li><a target="_blank" rel="nofollow" href="https://publications.waset.org/static/files/Postdoctoral-Fellowship-Award.pdf">Postdoctoral Fellowship Award</a></li> <li><a target="_blank" rel="nofollow" href="https://publications.waset.org/static/files/Scholarly-Research-Review.pdf">Scholarly Research Review</a></li> </ul> </div> <div class="col-md-2"> <ul class="list-unstyled"> Support <li><a href="https://waset.org/page/support">Support</a></li> <li><a href="https://waset.org/profile/messages/create">Contact Us</a></li> <li><a href="https://waset.org/profile/messages/create">Report Abuse</a></li> </ul> </div> </div> </div> </div> </div> <div class="container text-center"> <hr style="margin-top:0;margin-bottom:.3rem;"> <a href="https://creativecommons.org/licenses/by/4.0/" target="_blank" class="text-muted small">Creative Commons Attribution 4.0 International License</a> <div id="copy" class="mt-2">© 2024 World Academy of Science, Engineering and Technology</div> </div> </footer> <a href="javascript:" id="return-to-top"><i class="fas fa-arrow-up"></i></a> <div class="modal" id="modal-template"> <div class="modal-dialog"> <div class="modal-content"> <div class="row m-0 mt-1"> <div class="col-md-12"> <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">×</span></button> </div> </div> <div class="modal-body"></div> </div> </div> </div> <script src="https://cdn.waset.org/static/plugins/jquery-3.3.1.min.js"></script> <script src="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/js/bootstrap.bundle.min.js"></script> <script src="https://cdn.waset.org/static/js/site.js?v=150220211556"></script> <script> jQuery(document).ready(function() { /*jQuery.get("https://publications.waset.org/xhr/user-menu", function (response) { jQuery('#mainNavMenu').append(response); });*/ jQuery.get({ url: "https://publications.waset.org/xhr/user-menu", cache: false }).then(function(response){ jQuery('#mainNavMenu').append(response); }); }); </script> </body> </html>