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In this paper, we develop quadratic congruence codes (QCC) to cubic congruence codes (CCC), propose and analyze a new FH/TS two-dimensional (2-D) code by using the QCC and the CCC, named as the QCC/CCC 2-D codes. In contrast to the conventional QCC-based 1-D and QCC-based FH/TS 2-D optical codes, our analysis indicates that the performance and the codes capacity of the CCC-based 1-D and CCC-based...
In this paper, a phase-encoded optical code division multi-access (PE-OCDMA) system model is proposed. In order to analyze the impact of beat noise with precise, a Gaussian-approximation method by taking polarization into account is first introduced in this paper. The bit error rate (BER) formula of Gold sequence is obtained, when all interference signals are paralleled with the targeted user we derived...
A novel method using concatenated code to pre-encode is proposed to reduce the impact of any system impairment and multiple access interference (MAI) in optical code division multiple access (OCDMA) system. The bit error rate (BER) performance is derived taking into some noise and the MAI. From both theoretical analysis and numerical results, we can be able to show that the proposed system has good...
In this paper, a passive optical network (PON) based on optical code division multiple access (OCDMA) is presented, and analyzed in detail. The proposed system can be applied to an optical access network with full services on demand, such as internet protocol, video on demand, telepresence and high quality audio. An OCDMA-PON combines advantages of PON and OCDMA technology. Simulation result elicits...
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