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Multiple-length extended carrier-hopping prime codes for optical CDMA systems supporting multirate multimedia services

机译:用于支持多速率多媒体服务的光CDMA系统的多长度扩展载波跳变素码

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摘要

Extended carrier-hopping prime codes (ECHPCs) with ideal correlation properties (i.e., zero autocorrelation sidelobes and cross-correlation values of at most 1) and significantly expanded cardinality were recently constructed for wavelength-hopping time-spreading optical code division multiple access (O-CDMA). To support multimedia services with different bit-rate requirements, a new family of multiple-length constant-weight ECHPCs with ideal correlation properties is constructed algebraically in this paper. The performance of these new codes in an O-CDMA multimedia system is analyzed. Contrary to conventional single-length codes, our study shows that the performance of these multiple-length codes improves as the code length decreases, thus supporting prioritization in O-CDMA.
机译:最近构建了具有理想相关特性(即,零自相关旁瓣和至多1的互相关值)和显着扩展的基数的扩展载波跳跃质码(ECHPC),用于波长跳跃时延光码分多址(O -CDMA)。为了支持具有不同比特率要求的多媒体服务,本文以代数方式构建了具有理想相关特性的多长度恒重ECHPC新系列。分析了这些新代码在O-CDMA多媒体系统中的性能。与传统的单长度代码相反,我们的研究表明,这些多长度代码的性能随着代码长度的减少而提高,从而支持O-CDMA中的优先级划分。

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