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一种新的多用户分集系统信道量化与反馈算法

梁学俊 朱光喜 曹汐 王德胜

梁学俊, 朱光喜, 曹汐, 王德胜. 一种新的多用户分集系统信道量化与反馈算法[J]. 电子与信息学报, 2009, 31(3): 661-665. doi: 10.3724/SP.J.1146.2007.01742
引用本文: 梁学俊, 朱光喜, 曹汐, 王德胜. 一种新的多用户分集系统信道量化与反馈算法[J]. 电子与信息学报, 2009, 31(3): 661-665. doi: 10.3724/SP.J.1146.2007.01742
Liang Xue-jun, Zhu Guang-xi, Cao Xi, Wang De-sheng. A Novel Channel Quantization and Feedback Algorithm in Multiuser Diversity Systems[J]. Journal of Electronics & Information Technology, 2009, 31(3): 661-665. doi: 10.3724/SP.J.1146.2007.01742
Citation: Liang Xue-jun, Zhu Guang-xi, Cao Xi, Wang De-sheng. A Novel Channel Quantization and Feedback Algorithm in Multiuser Diversity Systems[J]. Journal of Electronics & Information Technology, 2009, 31(3): 661-665. doi: 10.3724/SP.J.1146.2007.01742

一种新的多用户分集系统信道量化与反馈算法

doi: 10.3724/SP.J.1146.2007.01742
基金项目: 

国际科技合作计划(2008DFA11630)和湖北省自然科学基金(2008CDB325)资助课题

A Novel Channel Quantization and Feedback Algorithm in Multiuser Diversity Systems

  • 摘要: 该文为了解决MIMO-OFDM系统中反馈信息占据大量无线资源的问题,提出一种新颖的信道量化与反馈算法,包括成簇、量化、反馈3个步骤。成簇利用频域相关性,将相邻子载波组成簇,以簇为基本反馈单元。量化考虑实际系统中可选调制方式的有限性,以量化信息表明簇内子载波可采用的调制方式。反馈通过簇排序和门限设置,只将部分具有竞争力的簇信息传送给基站。这种算法具有反馈信息量少、频谱效率损失小等特性,文中均有详细的理论推导,并通过仿真进行了验证。
  • Song G and Li Y. Adaptive subcarrier and power allocationin OFDM based on maximizing utility [C]. IEEE VehicularTechnology Conf, Orlando, April 2003: 905-909.[2]Kim T T, Bengtsson M, and Skoglund M. Quantized feedbackdesign for MIMO broadcast channels [C]. IEEE Int Conf onAcoustics, Speech, and Signal Processing, Hawaii, April 2007:1-4.[3]Knopp R and Humblet P A. Information capacity and powercontrol in single-cell multiuser communications [C]. IEEEInternet Commun Conf., Seattle, June 1995: 331-335.[4]Morris P D and Athaudage C R N. Fairness Based ResourceAllocation for Multi-User MIMO-OFDM Systems [C]. IEEEVehicular. Technology Conf, Melbourne, May 2006: 314-318.Uthansakul P and Bialkowski M E. An efficient adaptivepower and bit allocation algorithm for MIMO OFDM systemoperating in a multi user environment [C]. IEEE VehicularTechnology Conf, Melbourne, May 2006: 1531-1535.[5]Rong Y, Vorobyov S A, and Gershman A B. Adaptive OFDMtechniques with one-bit-per-subcarrier channel-state feedback[J].IEEE Trans. on Commun.2006, 54(11):1993-2003[6]Koorapaty H, Krasny L, and Ramesh R. Delta modulationfor channel feedback in transmit diversity systems [C]. IEEEVehicular Technology Conf, Dallas, June 2005: 644-648.[7]Gesbert D and Alouini M S. How much feedback is multiuserdiversity really worth [C]. IEEE Internet Commun Conf,vol.1, Paris, June 2004: 234-238.Svedman P and Wilson S K. A simplified opportunisticfeedback and scheduling scheme for OFDM [C]. IEEEVehicular Technology Conf., Los Angeles, Spet 2004:1878-1882.[8]Tang J and Zhang X. Cross-layer design of dynamic resourceallocation with diverse QoS guarantees for MIMO-OFDMwireless networks [C]. IEEE International Symposium on aWorld Wireless, Mobile and Multimedia Networks, Italy,June 2005: 205-212.[9]Goldsmith A J and Chua S. Vairable rate variable powerM-QAM for fading channels [J].IEEE Trans. onCommunications.1997, 45(10):1218-1230
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出版历程
  • 收稿日期:  2007-11-05
  • 修回日期:  2008-04-22
  • 刊出日期:  2009-03-19

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