摘要
提出了一种新的容量大、相关性好的多倍长、多波长reed-solomon(MWRS)码编码方案,并构造了多倍长MWRS码。对同时使用具有两种码长的多倍长MWRS码的OCDMA系统性能分析表明,使用该多倍长MWRS码的系统性能良好,使用短码序列信号的误码率性能好于使用长码序列信号的误码率性能。该特征能满足将来大容量多媒体OCDMA网络系统对同时传输的不同速率信号所需传输质量不同的需求。
A new class of multilength, constant-weight two-dimensional multi-wavelength reed-solomon （2D MW RS） code with large capacity and good correlation properties was constructed. The performance of these new MW RS codes with two kinds of lengths in an OCDMA network was analyzed. The result shows that media with the shorter code words performs much better than the media with longer codeword, and OCDMA system with these new multilength MW RS codes performs well. These features allow large capacity multimedia transmission with different bit-rate and quality-of-service requirements accommodated simultaneously in OCDMA network system.
出处
《通信学报》
EI
CSCD
北大核心
2006年第7期7-11,共5页
Journal on Communications
基金
国家自然科学基金资助项目(60372088)
电子科技大学青年基金资助项目(JX05021)~~
