NDLI: Subchannel Allocation for Multicarrier CDMA with Adaptive Frequency Hopping and Decorrelating Detection

Content Provider	IEEE Xplore Digital Library
Author	Jia, T. Duel-Hallen, A.
Copyright Year	2006
Description	Author affiliation: Dept. of Electr. & Comput. Eng., North Carolina State Univ., Raleigh, NC (Jia, T.; Duel-Hallen, A.)
Abstract	Multicarrier code-division multiple access (MC-CDMA) system with adaptive frequency hopping (FH) has attracted significant attention in the literature due to its excellent spectral efficiency. A suboptimal water-filling (WF) channel allocation algorithm was previously proposed for the conventional matched filter (MF) detector in the reverse link of this system. However, the performance of the WF algorithm is degraded by the fading-induced near-far problem. We propose a new allocation algorithm to overcome the limitations of the WF algorithm, and demonstrate the resulting BER improvement using simulation. Moreover, we employ the linear decorrelating detector at the receiver of the MC-CDMA system with adaptive FH to improve the spectral efficiency. The proposed allocation algorithm is also extended to this receiver by exploiting the SNR analysis of decorrelator. We demonstrate that the linear decorrelating detector that employs the proposed allocation algorithm is very effective in mitigating MAI, with performance approaching the single user bound for MC-CDMA system with adaptive FH
Starting Page	1
Ending Page	7
File Size	429211
Page Count	7
File Format	PDF
ISBN	142440617X
DOI	10.1109/MILCOM.2006.302015
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-10-23
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Multiaccess communication Radio spectrum management Decorrelation Multicarrier code division multiple access Adaptive systems Detectors Frequency Channel allocation Matched filters Degradation
Content Type	Text
Resource Type	Article

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