Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/46827
標題: Extended Multilevel Prime Codes for Optical CDMA
作者: Sun, C.C.
楊谷章
Yang, G.C.
Tu, C.P.
Chang, C.Y.
Kwong, W.C.
關鍵字: Multilevel codes
on-off keying
optical code division multiple access
tree structure
beat noise
orthogonal codes
ocdma systems
coherent
construction
performance
networks
design
期刊/報告no:: Ieee Transactions on Communications, Volume 58, Issue 5, Page(s) 1344-1350.
摘要: In this paper, a new family of &quot;multilevel&quot; wavelength-time codes with expanded code cardinality, flexible code length, zero autocorrelation sidelobes, and the maximum cross-correlation function of any arbitrary positive integer.. is constructed and analyzed. Besides having asymptotically optimal cardinality, the new codes can be partitioned into.. levels, such that the cross-correlation function between any two code matrices in level l is at most l, where 1 <= l <= n. The hardlimiting performance of these multilevel codes is analyzed algebraically. Our results show that the unique partitioning property of these multilevel codes supports a trade-off between code cardinality and performance for meeting different system requirements, such as user capacity and throughput.
URI: http://hdl.handle.net/11455/46827
ISSN: 0090-6778
文章連結: http://dx.doi.org/10.1109/tcomm.2010.05.090136
Appears in Collections:通訊工程研究所

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