Optimal transmission for the MIMO bidirectional broadcast channel in the wideband regime
2011 (English)In: IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC, 2011, 356-360 p.Conference paper (Refereed)
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.
Place, publisher, year, edition, pages
2011. 356-360 p.
Broadcast channels, Capacity regions, Closed form, matrix, Minimum energy per bit, Multiple antenna, Optimal transmission, Single beam, Weighted sum-rate, Wide-band, Broadcasting, Communication channels (information theory), Covariance matrix, MIMO systems, Signal processing, Wireless telecommunication systems, Optimization
IdentifiersURN: urn:nbn:se:kth:diva-53076DOI: 10.1109/SPAWC.2011.5990429ISI: 000299165600072ScopusID: 2-s2.0-80052676869ISBN: 9781424493326OAI: oai:DiVA.org:kth-53076DiVA: diva2:468867
2011 IEEE 12th International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2011. San Francisco, CA. 26 June 2011 - 29 June 2011
FunderICT - The Next Generation
QC 201112212011-12-212011-12-212012-04-04Bibliographically approved