NDLI: Linearly Constrained Constant Modulus Algorithm Based Blind Multi-User Detection for DS-UWB Systems

Content Provider	IEEE Xplore Digital Library
Author	Liu Jiabin Liang Zhonghua
Copyright Year	2007
Description	Author affiliation: Dept. of Commun. Eng., Beijing Inst. of Petrochem. Technol., Beijing (Liu Jiabin; Liang Zhonghua)
Abstract	By exploiting the inherence of quasi-static for indoor ultra-wideband (UWB) transmission environments and employing a constant modulus modulation to ultra-wideband signals, a linearly constrained constant modulus algorithm (LCCMA) based blind adaptive multi-user detection (MUD) is presented for direct sequence Ultra-wideband (DS-UWB) systems. In the proposed approach, the constant modulus algorithm (CMA) is first introduced into MUD for DS-UWB systems. Moreover, the global optimum property of the LCCMA is derived via blind signal processing method. Theoretical analysis and simulation results show that, compared with the training sequence based adaptive MUD, the proposed scheme can increase the transmission capacity of effective information with a loss of no higher than 3dB in terms of both output signal- interference ratio (SIR) and bit error ratio (BER). Therefore, it reaches a preferable tradeoff between transmission capacity and BER performance, and then can be considered as a compromise candidate for indoor DS-UWB high data rate multi-user access scenarios.
Starting Page	578
Ending Page	581
File Size	137078
Page Count	4
File Format	PDF
ISBN	9781424413119
DOI	10.1109/WICOM.2007.150
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-09-21
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Multiuser detection Analytical models Bit error rate Signal processing algorithms Interference Adaptive signal processing Propagation losses Signal analysis Ultra wideband technology Information analysis
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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