DocumentCode
1982821
Title
A Reduced Feedback Precoder for Cooperative Relay Networks
Author
Kim, Kyeong Jin ; Fan, Yijia ; Iltis, Ronald A. ; Poor, H. Vincent
fYear
2010
fDate
6-10 Dec. 2010
Firstpage
1
Lastpage
5
Abstract
A new precoder that reduces the feedback overhead in an OFDM-based relay network is proposed. A joint Singular Value Decomposition (SVD) and QR Decomposition is employed at the source-destination link and source-relay-destination link. Using the proposed precoder, only one precoding matrix needs to be fed back, independent of the total number of subcarriers. The link achievable rate using the reduced complexity precoder is evaluated via simulations and compared with that of full SVD precoders and for varying codebook size.
Keywords
OFDM modulation; cooperative communication; matrix algebra; precoding; radio repeaters; singular value decomposition; OFDM-based relay network; QR decomposition; SVD precoders; cooperative relay networks; joint singular value decomposition; precoding matrix; reduced feedback precoder; source-destination link; source-relay-destination link; Joints; MIMO; Matrix decomposition; OFDM; Receivers; Relays; Signal processing;
fLanguage
English
Publisher
ieee
Conference_Titel
Global Telecommunications Conference (GLOBECOM 2010), 2010 IEEE
Conference_Location
Miami, FL
ISSN
1930-529X
Print_ISBN
978-1-4244-5636-9
Electronic_ISBN
1930-529X
Type
conf
DOI
10.1109/GLOCOM.2010.5683261
Filename
5683261
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