Capacity Bounds for Backhaul-Supported Wireless Multicast Relay Networks with Cross-Links
2011 (English)In: IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC), 2011, NEW YORK: IEEE conference proceedings, 2011, 1-5 p.Conference paper (Refereed)
We investigate the capacity bounds for a wireless multicast relay network where two sources simultaneously multicast to two destinations through Gaussian channels with the help of a full-duplex relay node. All the individual channel gains are assumed to be time-invariant and known to every nodes in the network. The transmissions from two sources and from the relay use the same channel resource (i.e. co-channel transmission) and the two source nodes are connected with an orthogonal error-free backhaul. This multicast relay network is generic in the sense that it can be extended to more general networks by tuning the channel gains within the range [0, ∞). By extending the proof of the converse developed by Cover and El Gamal for the Gaussian relay channel, we characterize the cut-set bound for this multicast relay network. We also present a lower bound by using decoding-and-forward relaying combined with network beam-forming.
Place, publisher, year, edition, pages
NEW YORK: IEEE conference proceedings, 2011. 1-5 p.
, IEEE International Conference on Communications, ISSN 1550-3607
capacity bounds, cut-set bound, multicast communication, Gaussian relay channel
IdentifiersURN: urn:nbn:se:kth:diva-44905DOI: 10.1109/icc.2011.5962601ISI: 000296057101025ScopusID: 2-s2.0-80052163846ISBN: 978-1-61284-232-5ISBN: 978-1-61284-231-8OAI: oai:DiVA.org:kth-44905DiVA: diva2:451469
IEEE International Conference on Communications (ICC), Kyoto, Japan, 5-9 June 2011
ProjectsVINNOVA/MOST joint IMT-Advanced Project
FunderICT - The Next Generation
QC 201110302011-10-252011-10-252014-07-03Bibliographically approved