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Volume 32 Issue 7
Aug.  2010
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Xu Lei, Xu Da-zhuan, Zhang Xiao-fei. Minimizing Power Scheme with Low Feedback Overhead for Multiuser MIMO-OFDM Systems[J]. Journal of Electronics & Information Technology, 2010, 32(7): 1553-1558. doi: 10.3724/SP.J.1146.2009.00822
Citation: Xu Lei, Xu Da-zhuan, Zhang Xiao-fei. Minimizing Power Scheme with Low Feedback Overhead for Multiuser MIMO-OFDM Systems[J]. Journal of Electronics & Information Technology, 2010, 32(7): 1553-1558. doi: 10.3724/SP.J.1146.2009.00822

Minimizing Power Scheme with Low Feedback Overhead for Multiuser MIMO-OFDM Systems

doi: 10.3724/SP.J.1146.2009.00822
  • Received Date: 2009-05-31
  • Rev Recd Date: 2010-04-06
  • Publish Date: 2010-07-19
  • This paper utilizes the Karush-Kuhn-Tucher condition of convex programming issue and proposes a minimizing power scheme with low feedback overhead for multiuser MIMO-OFDM systems based on trellis coded modulation. Firstly, the scheme designs the codebook of rate and power and equivalent channel quantization threshold. Secondly, the subcarrier is allocated according to current channel state information and the equivalent channel gain is quantized. Finally, the base station broadcasts the result of resource allocation to users. The simulation results prove that comparing to other schemes the proposed scheme not only saves efficiently energy but also has advantage of low feedback overhead.
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  • Winston W L H and Liang Y C. Optimal resource allocationfor multiuser MIMO-OFDM systems with user rateconstraints[J].IEEE Transactions on Vehicular Technology.2009, 58(3):1190-1203[2]Xia P F, Zhou S L, and Giannakis G B. Adaptive MIMOOFDMbased partial channel state information[J].IEEETransactions on Signal Processing.2004, 52(1):202-213[3]Zhou S L and Li B. BER criterion and codebook constructionfor finite-rate precoded spatial multiplexing with linearreceives[J].IEEE Transactions on Signal Processing.2006, 54(5):1653-1665[4]Wang X, Marques A G, and Giannakis G B. Power-efficientresource allocation and quantization for TDMA usingadaptive transmission and limited-rate feedback[J].IEEETransactions on Signal Processing.2008, 56(9):4470-4485[5]Marques A G, Digham F F, and Giannakis G B. Optimizingpower efficiency of OFDM using quantized channel stateinformation[J].IEEE Journal on Selected Areas inCommunications.2006, 24(8):1581-1592[6]Marques A G, Giannakis G B, Digham F F, and Javier R F.Power-efficient wireless OFDMA using limited-ratefeedback[J].IEEE Transactions on Wireless Communications.2008, 7(2):685-696[7]Tang L, Zhu P C, Wang Y, and You X H. Adaptivemodulation based on finite-Rate feedback in broadcastchannels[J].IEEE Transactions on Wireless Communications.2008, 7(11):4449-4454[8]罗涛,乐光新. 多天线无线通信原理与应用[M]. 北京:邮电出版社,2005 年11 月: 68-95.[9]宋述龙. n 个服从指数分布的独立随机变量和分布的推导[J].辽宁师范大学学报(自然科学版),1990, (4): 51-58.[10]Didem K, Li G Q, and Liu H. Computationally efficientbandwidth allocation and power control for OFDMA[J].IEEE Transactions on Wireless Communications.2003, 2(11):1150-1158[11]Gong H D, Ye W, Feng S L, and Song H. A subcarrierallocation algorithm for efficiently reducing power inmultiuser OFDM Systems[J].Wireless PersonalCommunications.2007, 40(2):233-243
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