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|標題:||A Two-Level FH-CDMA Scheme for Wireless Communication Systems over Fading Channels||作者:||Wu, S.M.
|關鍵字:||Code division multiple access;code modulation;frequency hopping;spectral efficiency;frequency-hopping cdma;prime codes;ssma system;interference||Project:||Ieee Transactions on Communications||期刊/報告no：:||Ieee Transactions on Communications, Volume 59, Issue 1, Page(s) 38-44.||摘要:||
In this paper, we propose a "two-level" frequency-hopping code-division multiple-access (FH-CDMA) scheme for wireless communication systems. The new scheme provides flexibility in the selection of modulation codes and FH patterns. By partitioning the modulation codes, our two-level scheme can be modified to support more possible users without increasing the number of FH patterns. The performance and spectral efficiency (SE) of the scheme are analyzed. Our results show that the partitioned two-level FH-CDMA scheme supports higher data rate and greater SE than Goodman's frequency-shift-keying FH-CDMA scheme under some conditions.
|Appears in Collections:||通訊工程研究所|
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