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|標題:||A bipolar-bipolar code for asynchronous wavelength-time optical CDMA||作者:||Hsieh, C.P.
|關鍵字:||bipolar codes;Gold sequences;optical code-division multiple access;(O-CDMA);wavelength-hopping time-spreading codes;performance evaluation;systems;networks||Project:||Ieee Transactions on Communications||期刊/報告no：:||Ieee Transactions on Communications, Volume 54, Issue 7, Page(s) 1190-1194.||摘要:||
We propose a modified bipolar-bipolar code for wavelength-time optical code-division multiple access. The new code uses Gold sequences for time spreading, in place of Barker sequences in our previously proposed bipolar-bipolar code. The new code has a cardinality of N+1 times greater than the original code, because there exist N + 2 Gold sequences, but only one Barker sequence, for a given code length N. Since the new code is modified from the original code, there is no increase in hardware complexity. The average performance of the new code is analyzed and found very close to that of the original code. In other words, the new code can support greater cardinality without worsening average performance or increasing hardware complexity.
|Appears in Collections:||通訊工程研究所|
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