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有限反馈CoMP系统中多小区差分CQI协作调度

DOI: 10.13190/jbupt.201303.101.zhangtk, PP. 97-101

Keywords: 协作多点,多小区协作,调度,有限反馈

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Abstract:

针对有限反馈的协作多点系统,提出了一种考虑小区间干扰、提高小区边缘用户吞吐量的多小区协作调度算法.利用信道质量指示值(CQI)的差值(差分CQI)表征协作区域内相邻小区的用户采用不同预编码向量时对本小区用户的干扰情况.基站根据由用户反馈、小区间交互得到的差分CQI生成干扰加权因子,结合小区内比例公平调度算法计算的优先级因子,完成协作区域内不同小区间的用户配对和调度.新算法兼顾了系统的公平性和频谱效率,通过协调不同小区用户间的干扰,提高了边缘用户的数据速率,并利用差分CQI的反馈与交互,减小了协作小区间控制信息交互量.

References

[1]  吴文君, 王文博, 王健全. 多点协同系统中的协同波束赋形干扰抑制[J]. 北京邮电大学学报, 2011, 34(3): 103-107.
[2]  Wu Wenjun, Wang Wenbo, Wang Jianquan. Coordinated beamforming interference suppression in coordinated multi-point systems[J]. Journal of Beijing University of Posts and Telecoms, 2011, 34(3): 103-107.
[3]  Skjevling H, Gesbert D, Hjorungnes A. A low complexity distributed multibase transmission scheme for improving the sum capacity of wireless networks[C]//IEEE 8th Workshop on Signal Processing Advances in Wireless Communications. Finland Helsinki: IEEE Press, 2007: 1-5.
[4]  Dartmann G, Gong Xitao, Ascheid G. Jointly optimized transmit beamforming and temporal user scheduling in multiuser multicell scenarios based on correlation knowledge[C]//IEEE 33rd Sarnoff Symposium. Princeton: IEEE Press, 2010: 1-5.
[5]  Tang Xiaojun, Ramprashad S A, Papadopoulos H. Multi-cell user-scheduling and random beamforming strategies for downlink wireless communications[C]//2009 IEEE 70th Vehicular Technology Conference Fall. Alaska: IEEE Press, 2009: 1-5.
[6]  Huawei, Overhead reduction of best-M based CQI reporting [EB/OL]. Sophia, France: 3rd Generation Partnership Project, 2006 [2012]. http://www.3gpp.org/ftp/tsg_ran/wg1_rl1/TSGR1_47/Docs/
[7]  Marsch P, Fettweis G. Static clustering for cooperative multi-point (COMP) in mobile communications[C]//2011 IEEE International Conference on Communications. Jinan: IEEE Press, 2011: 1-5.
[8]  Westphal C. Monitoring proportional fairness in CDMA2000 high data rate networks[C]//2004 IEEE Global Telecommunications Conference. Dallas: IEEE Press, 2004: 1-5.
[9]  3GPP Organizational Partners 3GPP TR 36.814 v9.0.0—2010, Technical Specification Group Radio Access Network; Further Advancements for E-UTRA; Physical Layer Aspects[S]. Sophia: 3rd Generation Partnership Project, 2009: 87-88.

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