Joint subchannel matching and power allocation for the MIMO broadcast relay channel

Seunghun Jang, Chan ho Ahn, Dong Ku Kim

Research output: Contribution to journalArticle

Abstract

We propose a joint matching and relay power allocation scheme based on an interference-free architecture for the multiuser multiple-input multiple-output (MIMO) broadcast relay channel. Instead of using brute-force search, we propose a matching scheme that assigns the better subchannels at the first hop to the destinations with lower power costs. It is shown that the proposed matching scheme is optimal for certain power allocation schemes. Simulation results show that proposed matching scheme combined with water-filling power allocation is nearly optimal for the joint optimization problem of matching and power allocation.

Original languageEnglish
Pages (from-to)949-955
Number of pages7
Journalieice electronics express
Volume7
Issue number13
DOIs
Publication statusPublished - 2010 Jul 10

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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