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Volume 31 Issue 11
Dec.  2010
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Lin Hua-jiong, Tang You-xi, Shao Shi-hai. Optimum Zero-Forcing Detection of a Modified V-BLAST System with Delay Offsets[J]. Journal of Electronics & Information Technology, 2009, 31(11): 2677-2681. doi: 10.3724/SP.J.1146.2008.01421
Citation: Lin Hua-jiong, Tang You-xi, Shao Shi-hai. Optimum Zero-Forcing Detection of a Modified V-BLAST System with Delay Offsets[J]. Journal of Electronics & Information Technology, 2009, 31(11): 2677-2681. doi: 10.3724/SP.J.1146.2008.01421

Optimum Zero-Forcing Detection of a Modified V-BLAST System with Delay Offsets

doi: 10.3724/SP.J.1146.2008.01421
  • Received Date: 2008-11-03
  • Rev Recd Date: 2009-06-22
  • Publish Date: 2009-11-19
  • A modified Vertical-Bell Labs layered space-time (V-BLAST) system is proposed by Shao(2007). However, the ZF detection algorithm proposed by Shao is not the optimum under ZF criterion. In this paper, the optimum ZF detector is directly derived from the original continuous, unsampled signals at receive antennas. Both Analysis and simulation demonstrate that the optimum ZF detection is superior to the ZF detection algorithm proposed by Shao, especially when the number of transmit antennas is large.
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  • Gesbert D, Shafi M, Da-shan S, and Smith P J, et al.. Fromtheory to practice: An overview of MIMO space-time codedwireless systems[J].IEEE Journal on Selected Areas inCommunications.2003, 21(3):281-302[2]Foschini G J. Layered space-time architecture for wirelesscommunication in a fading environment when usingmultielement antennas[J].Bell Labs Technical Journal.1996,1(2):41-59[3]Tse D and Viswanath P. Fundamentals of WirelessCommunication[M]. Cambridge: Cambridge University Press,2005: 451-463.[4]Shao Shihai, Tang Youxi, and Kong Ting, et al.. Performanceanalysis of a modified V-BLAST systems with delay offsetsusing zero-foring detection[J].IEEE Transactions onVehicular Technology.2007, 56(6):3827-3837[5]Shao Shihai, Tang Youxi, and Ma Wanzhi, et al.. Layeredspace-time codes over Ricean fading channels by reducing thecorrelation of spatial shaping pulses[C]. IEEE InternationalConference on Communications, Beijing, China, May 2008:4069-4073.[6]Shihai Shao, Tang Youxi, and Ma Wanzhi. Layeredspace-time codes over Ricean fading channels by reducing thecorrelation of spatial shaping pulses[J].IEEE Transactions onWireless Communications.2009, 8(2):574-579[7]Sun Defu, Tang Youxi, and Shao Shihai. A differentialmodulation scheme for MIMO links with distributed transmitantennas[J].IEEE Communications Letters.2007, 11(11):892-894[8]Sun Defu, Tang Youxi, and Shao Shihai. Differentialspace-time modulation for modified V-BLAST system[C].IEEE Future generation communication and networking(fgcn 2007), Jeju Island, Korea, Dec. 2007: 223-227.[9]Verdu S. Multiuser Detection[M]. Cambridge: CambridgeUniversity Press, 1998: 108-126.[10]Bergmans J W M. Effect of binary modulation codes withrate R =1/N on equivalent discrete-time models for channelswith intersymbol interference[J].IEEE Transactions onInformation Theory.1992, 38(5):1587-1592[11]葛显良. 应用泛函分析[M]. 杭州: 浙江大学出版社, 1996:32-86.[12]Luenberger 编, 蒋正新, 郑春梅译. 最优化的矢量空间方法[M]. 北京: 国防工业出版社, 1987: 61-98.[13]Horn R A and Johnson C R. Matrix Analysis[M]. CambridgeUniversity Press, 1985: 337-344.[14]Golden G D, Foschini G J, and Valenzuela R, et al..Simplified processing for wireless communication at highspectral efficiency[J].IEEE Journal on Selected Areas inCommunications.1999, 17(11):1841-1853
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