Optimal transmission for the MIMO bidirectional broadcast channel in the wideband regime

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 sho...

Full description

Saved in:
Bibliographic Details
Published in2011 IEEE 12th International Workshop on Signal Processing Advances in Wireless Communications pp. 356 - 360
Main Authors Tan Tai Do, Oechtering, T. J., Skoglund, M.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.06.2011
Subjects
Array signal processing
Broadcast channels
Broadcasting
Capacity regions
Closed form
Communication channels (information theory)
Covariance matrix
matrix
MIMO
MIMO systems
Minimum energy per bit
Multiple antenna
Optimal transmission
Optimization
Relays
Signal processing
Signal to noise ratio
Single beam
Weighted sum-rate
Wide-band
Wideband
Wireless telecommunication systems
Online AccessGet full text

Cover

More Information
Summary: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.
ISBN:9781424493333
1424493331
1424493323
9781424493326
ISSN:1948-3244
1948-3252
DOI:10.1109/SPAWC.2011.5990429