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Volume 29 Issue 11
Jan.  2011
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Zheng Hai-bo, Wang Jing, Zhou Shi-dong, Su Xin. Multiuser Diversity in Distributed Antenna System[J]. Journal of Electronics & Information Technology, 2007, 29(11): 2603-2605. doi: 10.3724/SP.J.1146.2006.00508
Citation: Zheng Hai-bo, Wang Jing, Zhou Shi-dong, Su Xin. Multiuser Diversity in Distributed Antenna System[J]. Journal of Electronics & Information Technology, 2007, 29(11): 2603-2605. doi: 10.3724/SP.J.1146.2006.00508

Multiuser Diversity in Distributed Antenna System

doi: 10.3724/SP.J.1146.2006.00508
  • Received Date: 2006-04-17
  • Rev Recd Date: 2006-09-15
  • Publish Date: 2007-11-19
  • In recent years, there has been considerable interest in distributed antenna system due to its promising improvement in coverage, power efficiency and channel capacity. But many papers are only focused on these cases and do not consider multiuser diversity. A minimal capacity loss Round-Robin scheduling algorithm is presented in this paper. Coupled with this algorithm, the multiuser diversity is studied in downlink distributed antenna system based on zero-forcing beamforming. The results show that with the same antenna number and sum power Distributed Antenna System (DAS) is preferable to Co-located Antenna System (CAS) in term of multiuser diversity gain. The minimal capacity loss Round-Robin scheduling algorithm distinctly outperforms common Round-Robin scheduling algorithm and it can be used in DAS and CAS.
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  • Zhou S D, Zhao M, and Xu X B, et al.. Distributed wireless communication system: A new architecture for future public wireless access [J]. IEEE Communications Magazine, 2003, 41(3): 108-113.[2]Clark M V, Willis T M III, and Greenstein L J, et al.. Distributed versus centralized antenna arrays in broadband wireless networks [A]. Proc IEEE Vehicular Technology [C]. Rodes, Greece: IEEE Vehicular Technology Society, 2001, 1: 33-37.[3]Zhuang H R, Dai L, and Xiao L, et al.. Spectral efficiency of distributed antenna system with random antenna layout [J].Electronics Letters.2003, 39(6):495-496[4]Xiao L, Dai L, and Zhuang H R, et al.. Information-theoretic capacity analysis in MIMO distributed antenna systems [A]. Proc IEEE Vehicular Technology [C], Jeju, Korea: IEEE Vehicular Technology Society, 2003, 1: 22-25.[5]Tse D N. Multiuser diversity in wireless networks [A]. Wireless communication seminar [C], Stanford: Stanford University, 2000.[6]Spencer Q H, Swindlehurst A L, and Haardt M. Zero-forcing methods for downlink spatial multiplexing in multiuser MIMO channels [J].IEEE Trans. on Signal Processing.2004, 52(2):461-471[7]Dimic G and Sidropoulos N D. Low-complexity downlink beamforming for maximum sum capacity [A]. Proc IEEE Acoustics, Speech, and Signal Processing [C], Montreal, Canada: IEEE Signal Processing Society, 2004, 4: 701-704.
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