Link Correlation Based Transmit Sector Antenna Selection for Alamouti Coded OFDM

URI http://harp.lib.hiroshima-u.ac.jp/hiroshima-cu/metadata/5504
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Title
Link Correlation Based Transmit Sector Antenna Selection for Alamouti Coded OFDM
Author
氏名 安 昌俊
ヨミ アン チャンジュン
別名 AHN Chang-Jun
Subject
MIMO
FBI
OFDM
antenna selection
sector antenna
Abstract

In MIMO systems, the deployment of a multiple antenna technique can enhance the system performance. However, since the cost of RF transmitters is much higher than that of antennas, there is growing interest in techniques that use a larger number of antennas than the number of RF transmitters. These methods rely on selecting the optimal transmitter antennas and connecting them to the respective. In this case, feedback information (FBI) is required to select the optimal transmitter antenna elements. Since FBI is control overhead, the rate of the feedback is limited. This motivates the study of limited feedback techniques where only partial or quantized information from the receiver is conveyed back to the transmitter. However, in MIMO/OFDM systems, it is difficult to develop an effective FBI quantization method for choosing the space-time, space-frequency, or space-time-frequency processing due to the numerous subchannels. Moreover, MIMO/OFDM systems require antenna separation of 5 10 wavelengths to keep the correlation coefficient below 0.7 to achieve a diversity gain. In this case, the base station requires a large space to set up multiple antennas. To reduce these problems, in this paper, we propose the link correlation based transmit sector antenna selection for Alamouti coded OFDM without FBI.

Description Peer Reviewed
Journal Title
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Volume
E92-A
Issue
3
Spage
816
Epage
823
Published Date
2009-03-01
Publisher
電子情報通信学会(IEICE)
ISSN
0916-8508
NCID
AA10826239
Language
eng
NIIType
Journal Article
Text Version
出版社版
Rights
copyright©2009 IEICE
Relation URL
Old URI
Set
hiroshima-cu