Research on multi-rate quasi-synchronous coherent time-spreading OCDMA system
Research on multi-rate quasi-synchronous coherent time-spreading OCDMA system
- Author(s): Zhengfeng Xiao ; Jianhua Ji ; Ming Xu ; Shuwen Yang
- DOI: 10.1049/cp.2010.1172
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- Author(s): Zhengfeng Xiao ; Jianhua Ji ; Ming Xu ; Shuwen Yang Source: 9th International Conference on Optical Communications and Networks (ICOCN 2010), 2010 p. 139 – 142
- Conference: 9th International Conference on Optical Communications and Networks (ICOCN 2010)
- DOI: 10.1049/cp.2010.1172
- ISBN: 978-1-84919-314-6
- Location: Nanjing, China
- Conference date: 24-27 Oct. 2010
- Format: PDF
We propose a novel scheme of multi-rate quasi-synchronous coherent time-spreading OCDMA system, employing orthogonal variable spreading factor (OVSF) codes with a zero-correlation zone. Within permissible time delay, multiple-access interference and beat noise can be removed in multi-rate quasi-synchronous coherent time-spreading OCDMA system, and the near-far problem can also be eliminated. Simulation of eight simultaneous users with 1.25 Gbit/s and 0.625 Gbit/s is demonstrated, where the fiber link consists of 20 km single-mode fiber, plus 2 km Dispersion Compensating Fiber.
Inspec keywords: light interference; code division multiple access; interference suppression; orthogonal codes; optical fibre networks
Subjects: Optical fibre networks; Multiple access communication; Electromagnetic compatibility and interference
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