Link Correlation Based Transmit Sector Antenna Selection for Alamouti Coded OFDM

URI http://harp.lib.hiroshima-u.ac.jp/hiroshima-cu/metadata/5504
ファイル
タイトル
Link Correlation Based Transmit Sector Antenna Selection for Alamouti Coded OFDM
著者
氏名 安 昌俊
ヨミ アン チャンジュン
別名 AHN Chang-Jun
キーワード
MIMO
FBI
OFDM
antenna selection
sector antenna
抄録

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.

査読の有無
掲載雑誌名
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
E92-A
3
開始ページ
816
終了ページ
823
出版年月日
2009-03-01
出版者
電子情報通信学会(IEICE)
ISSN
0916-8508
NCID
AA10826239
本文言語
英語
資料タイプ
学術雑誌論文
著者版フラグ
出版社版
権利情報
copyright©2009 IEICE
関連URL
旧URI
区分
hiroshima-cu