Lower bound capacity based scheduling in MU MIMO system
LUO Xun, YANG Yang, DING Zhangcheng, FANG Shu, LI Shaoqian
National Key Laboratory of Science and Technology on Communications, University of Electronic Science and Technology of China,Chengdu 611731, China
Abstract:
The current existed scheduling schemes which are generally derived from the antenna selection algorithms can improve the sum rate of MU MIMO system to some extent. However, these schemes can not make the best of multi user diversity gain, thus incurring capacity loss. To overcome these disadvantages, in this paper, a novel user scheduling scheme based on the lower bound capacity of MU MIMO broadcast channel is proposed for the multi user zero forcing precoding system. In the proposed scheme, the base station will schedule those users that can achieve the maximal lower bound capacity of MU MIMO system by certain optimal criterion. Simulation results are exhibited to indicate that the proposed scheme can provide performance improvement than other existed scheduling schemes.
Key words: user selection high throughput scheduling perfomance improvement
DOI：10.11916/j.issn.1005-9113.2012.02.014
Clc Number:TN92
Fund:
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Lower bound capacity based scheduling in MUMIMO system
本站小编 哈尔滨工业大学/2019-10-24
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