A Two-Level FH-CDMA Scheme for Wireless Communication Systems over Fading Channels

作者：Wu Sung Ming^*; Yang Guu Chang; Chang Cheng Yuan; Kwong Wing C

来源：IEEE Transactions on Communications, 2011, 59(1): 38-44.

DOI：10.1109/TCOMM.2010.111710.090157

• Code division multiple access
• code modulation
• frequency hopping
• spectral efficiency

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.

• 出版日期2011-1