DocumentCode
407804
Title
A decision directed receiver for Alamouti coded OFDM systems
Author
Kim, Jaekwon ; Jang, Byungchul ; Heath, Robert W., Jr. ; Powers, Edward J.
Author_Institution
Dept. of Electr. & Comput. Eng., Texas Univ., Austin, TX, USA
Volume
1
fYear
2003
fDate
6-9 Oct. 2003
Firstpage
662
Abstract
When the Alamouti code is applied (as a space-time block code) to an OFDM system with transmit diversity, the simple Alamouti decoding requires that each subchannel is flat-fading and constant over two symbol periods (Alamouti codeword period). The second requirement makes the Alamouti decoding scheme not suitable for time varying channels. In this paper, we propose a new decision directed receiver to better accommodate time varying channels.
Keywords
OFDM modulation; block codes; decoding; fading channels; space-time codes; Alamouti coded OFDM systems; Alamouti decoding; decision directed receiver; fading channels; flat-fading subchannels; space-time block code; symbol period; time varying channels; transmit diversity; Bandwidth; Block codes; Decoding; Delay; Fading; Frequency conversion; OFDM; Receiving antennas; Time-varying channels; Transmitting antennas;
fLanguage
English
Publisher
ieee
Conference_Titel
Vehicular Technology Conference, 2003. VTC 2003-Fall. 2003 IEEE 58th
ISSN
1090-3038
Print_ISBN
0-7803-7954-3
Type
conf
DOI
10.1109/VETECF.2003.1285100
Filename
1285100
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