DocumentCode
2840861
Title
Optimal transmission for the MIMO bidirectional broadcast channel in the wideband regime
Author
Do, Tan Tai ; Oechtering, Tobias J. ; Skoglund, Mikael
Author_Institution
Sch. of Electr. Eng., R. Inst. of Technol. (KTH), Stockholm, Sweden
fYear
2011
fDate
26-29 June 2011
Firstpage
356
Lastpage
360
Abstract
This paper presents an optimal transmit strategy for multiple antennas bidirectional broadcast channels in the wideband regime. The transmit covariance matrix at the relay has been designed in order to maximize the wideband weighted sum rate. A closed form of the optimal matrix is derived, which shows that a single beam transmit strategy is optimal. The transmit strategies for some special cases, the wideband capacity region, and the minimum energy per bit versus fairness issues are also discussed.
Keywords
MIMO communication; broadcast channels; covariance matrices; MIMO bidirectional broadcast channel; multiple antenna bidirectional broadcast channel; optimal transmission; transmit covariance matrix; wideband regime; Array signal processing; Covariance matrix; MIMO; Optimization; Relays; Signal to noise ratio; Wideband;
fLanguage
English
Publisher
ieee
Conference_Titel
Signal Processing Advances in Wireless Communications (SPAWC), 2011 IEEE 12th International Workshop on
Conference_Location
San Francisco, CA
ISSN
1948-3244
Print_ISBN
978-1-4244-9333-3
Electronic_ISBN
1948-3244
Type
conf
DOI
10.1109/SPAWC.2011.5990429
Filename
5990429
Link To Document