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|標題:||Performance analysis of variable-weight multilength optical codes for wavelength-time O-CDMA multimedia systems||作者:||Baby, V.
|關鍵字:||multimedia services;multiple length;optical code division multiple;access;wavelength-time code;variable weight;orthogonal codes;power-control;networks;design;schemes||Project:||Ieee Transactions on Communications||期刊/報告no：:||Ieee Transactions on Communications, Volume 55, Issue 7, Page(s) 1325-1333.||摘要:||
To support multimedia services with different discrete bit-rate requirements, families of multilength optical codes, such as the carrier-hopping prime code (CHPC), extended CHPC, and multiwavelength optical orthogonal code, were recently constructed for wavelength-time optical code-division multiple-access (O-CDMA). In this paper, the performances of these multilength optical codes in a multimedia O-CDMA system with a variable-weight operation are analyzed. Our study shows that short-length codes generate stronger interference than long-length codes. This supports services prioritization in O-CDMA. Our study also shows that code weight is a more important factor than code length in determining code performance.
|Appears in Collections:||通訊工程研究所|
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