LDPC coded adaptive AF scheme based on MI model

Xiang Chen, Huanbing Liu, Hui Jiang*

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)

Abstract

User Cooperation is a promising technology to obtain diversity gain at terminals. According to the traditional amplify-and-forward (AF) scheme, relay node help to transmit source node's information with fixed transmission power all the time. It is not optimal in view of power efficiency, especially when the channel state is good. This paper introduces the adaptive AF scheme based on the Mutual Information (MI) model. The optimal power to relay is predicted accurately. The reliability requirement is satisfied, and the power is saved for transmitting new information. Theoretical analysis and simulation results indicate that the adaptive AF scheme improves the power efficiency significantly.

Original languageEnglish
Pages (from-to)3619-3623
Number of pages5
JournalProcedia Engineering
Volume29
DOIs
Publication statusPublished - 2012
Externally publishedYes
Event2012 International Workshop on Information and Electronics Engineering, IWIEE 2012 - Harbin, China
Duration: 10 Mar 201211 Mar 2012

Keywords

  • Decode-and-forward
  • Mutual information model
  • User Cooperation

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