Broadcast strategies for the fading relay channel

Melda Yuksel, Elza Erkip

Research output: Contribution to conferencePaper

Abstract

Broadcast strategy is an encoding technique that enables the reliably decoded rate to adapt to the actual channel state. This can be achieved if the transmitted signal is composed of superimposed information for different fading levels. In this work we apply the broadcast strategy to fading relay channels. The source encodes its information to two levels, the first one is decoded if the channel state is "bad", and the superimposed information is decoded after the first one, if the channel state is "good". This approach allows decoding some partial information both at the relay and at the destination, increasing the overall throughput of the system compared to amplify and forward (AF) and modified decode and forward (MDF), while resulting in two levels of diversity. We also argue that the broadcast approach over the relay channel also results in lower overall distortion when the source is also taken into account.

Original languageEnglish (US)
Pages1060-1065
Number of pages6
StatePublished - 2004
EventMILCOM 2004 - 2004 IEEE Military Communications Conference - Monterey, CA, United States
Duration: Oct 31 2004Nov 3 2004

Other

OtherMILCOM 2004 - 2004 IEEE Military Communications Conference
CountryUnited States
CityMonterey, CA
Period10/31/0411/3/04

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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    Yuksel, M., & Erkip, E. (2004). Broadcast strategies for the fading relay channel. 1060-1065. Paper presented at MILCOM 2004 - 2004 IEEE Military Communications Conference, Monterey, CA, United States.