Piggyback a common message on bidirectional relaying
2007 (English)In: 2007 5TH INTERNATIONAL SYMPOSIUM ON MODELING AND OPTIMIZATION IN MOBILE, AD HOC AND WIRELESS NETWORKS AND WORKSHOPS, VOLS 1-2, 2007, 495-502 p.Conference paper (Refereed)
In a three-node network, a half-duplex relay node enables bidirectional communication between two nodes with a spectral efficient two phase protocol using interference cancellation. In the first phase, both nodes transmit a message to the relay node, which decodes the messages and broadcast a composition in the second phase. In this work, we add an additionally multicast communication from the relay node to the two receiving node to the bidirectional relay communication. We characterize the total sum-rate maximum of the bidirectional and additional relay rate. Furthermore, we show how additional relay rate can be interchanged with bidirectional rate achieving the same total sum-rate. Due to the spectral efficiency of the bidirectional relaying protocol the total sum-rate behavior is dominated by the sum-rate optimal rate pair of the bidirectional broadcast phase.
Place, publisher, year, edition, pages
2007. 495-502 p.
CAPACITY THEOREMS, NETWORKS
IdentifiersURN: urn:nbn:se:kth:diva-52411DOI: 10.1109/WIOPT.2007.4480097ISI: 000256557600062ISBN: 978-1-4244-0960-0OAI: oai:DiVA.org:kth-52411DiVA: diva2:466415
5th International Symposium on Modeling and Optimization in Mobile, Ad Hoc and Wireless Networks and Workshop. Limassol, CYPRUS. APR 16-20, 2007
QC 201112162011-12-152011-12-152011-12-16Bibliographically approved