Joint optimization of power allocation and relay location for decode-and-forward dual-hop systems over nakagami-m fading channels

Salama S. Ikki, Murat Uysal, Mohamed H. Ahmed

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We consider power allocation (PA) and relay positioning in a dual-hop decode-and-forward relaying system over Nakagami-m fading channels. We investigate adaptive power allocation (PA) with fixed relay location, optimal relay location with fixed power allocation and joint optimization of the PA and relay location under transmit power constraint in order to minimize outage probability and average error probability upper bound. Results show that the analyzed adaptive algorithms outperform uniform algorithms and direct transmission. It is also found that as the source destination channel is getting better, the less power will be needed to allocate to the relay node in order to satisfy the optimization criteria. Numerical results are presented to verify our analysis1.

Original languageEnglish (US)
Title of host publicationGLOBECOM 2009 - 2009 IEEE Global Telecommunications Conference
DOIs
StatePublished - 2009
Event2009 IEEE Global Telecommunications Conference, GLOBECOM 2009 - Honolulu, HI, United States
Duration: Nov 30 2009Dec 4 2009

Publication series

NameGLOBECOM - IEEE Global Telecommunications Conference

Other

Other2009 IEEE Global Telecommunications Conference, GLOBECOM 2009
Country/TerritoryUnited States
CityHonolulu, HI
Period11/30/0912/4/09

Keywords

  • Decode-and-forward
  • Error probability
  • Nakagami-m channel
  • Optimizations
  • Outage probability
  • Power allocation
  • Relay location

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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