Analysis of the performance of time-spread optical code-division multiple access systems with integrate-and-dump receivers
- Authors
- Park, Sang-Gyu; Choi, Byong-Deok
- Issue Date
- Oct-2009
- Publisher
- ELSEVIER SCIENCE INC
- Keywords
- OCDMA; TS-OCDMA; Integrate-and-dump receiver; Optical thresholding; Optical coherence
- Citation
- OPTICAL FIBER TECHNOLOGY, v.15, no.5-6, pp.456 - 461
- Indexed
- SCIE
SCOPUS
- Journal Title
- OPTICAL FIBER TECHNOLOGY
- Volume
- 15
- Number
- 5-6
- Start Page
- 456
- End Page
- 461
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/176070
- DOI
- 10.1016/j.yofte.2009.08.001
- ISSN
- 1068-5200
- Abstract
- The BER performance of asynchronous time-spread optical code-division multiple access (TS-OCDMA) systems employing integrate-and-dump receivers with partially coherent optical sources was analyzed. Monte-Carlo simulations of the system were performed to verify the validity of the model. Using the developed analytic model, the TS-OCDMA systems with integrate-and-dump receivers were compared with those employing optical thresholders. It was found that: (1) as the integration time (or gating time) increases, the systems with optical thresholders outperform those using integrate-and-dump receivers, (2) while the performance of both systems is improved as the optical sources become more incoherent, those with integrate-and-dump receivers benefit more, (3) when the systems are spectral-efficiency limited, the performance does not improve by using partially coherent sources.
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