Generation of Multiple Weights in the Opportunistic Beamforming Systems

Generation of Multiple Weights in the Opportunistic Beamforming Systems
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机会波束形成系统中多个权重的生成

DOI:
10.4236/wsn.2009.13025
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发表时间:
2009-10
期刊:
Wireless Sensor Network
影响因子:
--
通讯作者:
Houquan Yu
Houquan Yu
中科院分区:
其他
文献类型:
--
作者:
Chao Shao;Lei Zhang;Guangyue Lu;Houquan Yu

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针对机会波束形成(OBF)系统中由于活跃用户较少而导致性能下降的问题,提出了一种新的多权值生成方案。在该方案中,仅利用两个小时隙创建有效信道,将两个小时隙中获得的两个有效信道进行线性组合可以获得更多的候选信道,从而提高了多用户分集和系统吞吐量。仿真结果验证了该方案的有效性。
A new scheme to generate multiple weights used in opportunistic beamforming (OBF) system is proposed to deal with the performance degradation due to the fewer active users in the OBF system. In the proposed scheme, only two mini-slots are employed to create effective channels, while more channel candidates can be obtained via linearly combining the two effective channels obtained during the two mini-slots, thus increas-ing the multiuser diversity and the system throughputs. The simulation results verify the effectiveness of the proposed scheme.
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