Achievable energy per bit for the multi-pair MIMO bidirectional broadcast channel
2012 (English)In: European Wireless, 2012. EW. 18th European Wireless Conference, 2012Conference paper (Refereed)
This paper presents a transmit strategy for the AWGN multi-pair MIMO bidirectional broadcast channels in the wideband regime. An achievable wideband rate region and an achievable energy per bit region are provided. The transmit covariance matrix at the relay has been designed in order to maximize the wideband weighted rate sum. A closed form of the optimal matrix is derived, which shows that a single beam transmit strategy is optimal. In addition, an energy efficiency versus fairness analysis is considered. Lastly, some discussions on the minimum energy per bit are given.
Place, publisher, year, edition, pages
Minimum energy per bit, Multiple antenna, Optimal transmission, Single beam, Weighted sum-rate, Wide-band, Broadcasting
IdentifiersURN: urn:nbn:se:kth:diva-134851ScopusID: 2-s2.0-84907087749ISBN: 978-3-8008-3426-9OAI: oai:DiVA.org:kth-134851DiVA: diva2:668388
18th European Wireless Conference, Poznan, Poland, 18-20 April, 2012.
FunderICT - The Next Generation
QC 201312122013-11-292013-11-292013-12-12Bibliographically approved