Proceedings ArticleDOI
Performance analysis for CDMA distributed antenna systems in an imperfect multipath environment
Chen Peng,Wu Weiling,Ma Ben-teng +2 more
- Vol. 5, pp 3412-3416
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TLDR
The investigation shows that the effect of imperfect channel estimates varies with system load, and it is found that for the forward-link of DA systems, if simulcasting is employed, macrodiversity can decrease both the sensitivity of performance to channel estimation errors and the outage probability, contrary to the conclusion drawn based on the ideal channel estimation assumption.Abstract:
Most of the previous studies in CDMA distributed antenna (DA) systems only provide a performance analysis based on the ideal channel estimation assumption in a flat fading environment. In this paper, the impact of imperfect channel estimation on the forward-link outage performance of CDMA DA systems in a multipath fading environment is investigated. A detailed analytical model based on a hybrid signal combining method is presented and the exact outage probability expression is derived. Our investigation shows that the effect of imperfect channel estimates varies with system load. Furthermore, we find that for the forward-link of DA systems, if simulcasting is employed, macrodiversity can decrease both the sensitivity of performance to channel estimation errors and the outage probability, which is contrary to the conclusion drawn based on the ideal channel estimation assumption.read more
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References
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Book
Wireless Communications: Principles and Practice
TL;DR: WireWireless Communications: Principles and Practice, Second Edition is the definitive modern text for wireless communications technology and system design as discussed by the authors, which covers the fundamental issues impacting all wireless networks and reviews virtually every important new wireless standard and technological development, offering especially comprehensive coverage of the 3G systems and wireless local area networks (WLANs).
Journal ArticleDOI
On the capacity of a cellular CDMA system
Klein S. Gilhousen,Irwin M. Jacobs,Roberto Padovani,Andrew J. Viterbi,L.A. Weaver,Charles E. Iii Del Mar Wheatley +5 more
TL;DR: In this paper, the interference-suppression feature of CDMA (code division multiple access) can result in a many-fold increase in capacity over analog and even over competing digital techniques.
Proceedings Article
On the capacity of a cellular CDMA system
Klein S. Gilhousen,Irwin M. Jacobs,Roberto Padovani,Andrew J. Viterbi,L.A. Weaver,Charles E. Iii Del Mar Wheatley +5 more
TL;DR: It is concluded that properly augmented and power-controlled multiple-cell CDMA (code division multiple access) promises a quantum increase in current cellular capacity.
Journal ArticleDOI
Distributed wireless communication system: a new architecture for future public wireless access
TL;DR: The distributed wireless communication system is a new architecture for a wireless access system with distributed antennas, distributed processors, and distributed control that works like a software or network radio, so different standards can coexist.
Proceedings ArticleDOI
Outage performance of the distributed antenna systems in a composite fading channel
Wonil Roh,Arogyaswami Paulraj +1 more
TL;DR: This work investigates the effect of macroscopic and microscopic diversity of the proposed system on outage SNR performance and compares with the conventional architectures through analysis and simulation under a composite fading channel.
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