2008 (English)In: IEEE Communications Letters, ISSN 1089-7798, Vol. 12, no 9, 612-614 p.Article in journal (Refereed) Published
We consider the three-node AWGN relay channel with a memoryless relay, in contrast to the conventional decode-and-forward or compress-and-forward schemes, which require complex encoding and decoding processing at the relay. We model the operation of the relay as a single-variable deterministic mapping. We then in particular propose to use a "modulo function" or a "triangular function" to implement the mapping at the relay. Since both these have a sawtooth-like shape we coin the term "sawtooth relaying." We demonstrate significantly improved achievable rates of our proposed schemes over the conventional memoryless amplify-and-forward relaying.
Place, publisher, year, edition, pages
IEEE Communications Society , 2008. Vol. 12, no 9, 612-614 p.
IdentifiersURN: urn:nbn:se:kth:diva-17822DOI: 10.1109/lcomm.2008.080684ISI: 000259192100002ScopusID: 2-s2.0-52649108678OAI: oai:DiVA.org:kth-17822DiVA: diva2:335867
QC 20100525 QC 201112152010-08-052010-08-052011-12-15Bibliographically approved