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Dual-balanced detection scheme with optical hard-limiters in an optical code division multiple access system

机译:光码分多址系统中具有光硬限制器的双平衡检测方案

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摘要

Three-arm dual-balanced detection scheme is studied in an optical code division multiple access system. As the MAI and beat noise are the main deleterious source of system performance, we utilize optical hard-limiters to alleviate such channel impairment. In addition, once the channel condition is improved effec-tively, the proposed two-dimensional error correction code can remarkably enhance the system performance. In our proposed scheme, the optimal thresholds of optical hard-limiters and decision circuitry are fixed, and they will not change with other system parameters. Our proposed scheme can accommodate a large number of users simultaneously and is suitable for burst traffic with asynchronous transmission. Therefore, it is highly recom-mended as the platform for broadband optical access network.
机译:在光码分多址系统中研究了三臂双平衡检测方案。由于MAI和拍音是系统性能的主要有害来源,因此我们利用光学硬限幅器来减轻这种信道损伤。另外,一旦信道条件得到有效改善,所提出的二维纠错码可以显着提高系统性能。在我们提出的方案中,光学硬限幅器和决策电路的最佳阈值是固定的,并且不会随其他系统参数而改变。我们提出的方案可以同时容纳大量用户,并且适合异步传输的突发流量。因此,强烈建议将其作为宽带光接入网的平台。

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