Transmit antenna subset selection for downlink MIMO systems in multicell environments

Authors:
Jee Woong Kang;Hui Won Je;Chang Soon Park;Kwang Bok Lee
Affiliations:
Samsung Electronics, Co. Ltd., Korea;Department of Electrical Engineering, Stanford University, CA;Samsung Advanced Institute of Technology, Korea;School of Electrical Engineering and Computer Science, Seoul National University, Korea
Venue:
IEEE Transactions on Wireless Communications
Year:
2010

Citing 7
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Abstract

This letter proposes a statistical cooperative scheme for transmit antenna subset selection in multiple-input multiple-output (MIMO) multicell systems. The proposed scheme is practical in that it only utilizes the statistical information for the adjacent links. However, it provides almost 90 percent of the average mutual information of the full cooperative scheme which requires a large amount of the instantaneous information and joint cooperation between base stations. Furthermore, the proposed scheme shows substantial performance enhancements over the competitive scheme in which the effects of intercell interference generated by the antenna selection are not considered.