A novel space-time-frequency coded system design for OFDM over fast fading channels

被引:0
作者
Oguz, O [1 ]
Aygölü, Ü [1 ]
Panayirci, E [1 ]
机构
[1] Isik Univ, Elektron Muhendisligi Bolumu, Istanbul, Turkey
来源
PROCEEDINGS OF THE IEEE 12TH SIGNAL PROCESSING AND COMMUNICATIONS APPLICATIONS CONFERENCE | 2004年
关键词
D O I
10.1109/SIU.2004.1338259
中图分类号
TP18 [人工智能理论];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ;
摘要
This work is concerned with a transmitter diversity technique for wireless communications over frequency selective fading channels. The proposed technique utilizes orthogonal frequency division multiplexing (OFDM) to transform a frequency selective fading channel into multiple flat fading subchannels on which space-frequency processing is first applied and then additional space-time coding is applied in order to increase the diversity. In order to improve the performance of the system, a convenient trellis coding scheme is investigated and design criteria are established. Performance of the proposed space-time-frequency OFDM (STF-OFDM) transmitter diversity technique has been examined by computer simulations and compared with existing schemes.
引用
收藏
页码:68 / 71
页数:4
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