Cooperative relay channel with LDPC codes constructed from array codes

  1. Lookup NU author(s)
  2. Mingkwan Somphruek
  3. Emeritus Professor Rolando Carrasco
  4. Dr Stephane Le Goff
Author(s)Somphruek M, Carrasco RA, Le Goff SY
Publication type Conference Proceedings (inc. Abstract)
Conference NameWireless Telecommunications Symposium
Conference LocationPrague, Czech Republic
Year of Conference2009
Source Publication Date22-24 April 2009
Full text for this publication is not currently held within this repository. Alternative links are provided below where available.
Cooperative communication represents a new class of diversity techniques in which multiple nodes each with a single antenna cooperate to generate a virtual multiple-antenna transmission system and thus offer the benefits of spatial diversity. This paper proposes suitable array codes used as low-density parity-check (LDPC) codes to be applied in the cooperative amplify-and-forward (AF) network. A mathematical description of the construction of suitable array codes for a relay fading channel is also presented. Compared with quasi-cyclic (QC) LDPC codes, the array codes have similar encoding complexity and can adaptively generate various desired girth values. This paper shows that array codes with large girths can achieve substantial system performance improvements. Simulation results in this paper show that using array codes as LDPC codes for cooperative relay transmission provides a significant performance improvement over direct transmission. Moreover, it is also shown that its performance is superior to some structured LDPC codes such as QC-LDPC codes, particularly, a coding gain of about IdB at BER of 10-3 can be provided over its counterpart.
ActionsLink to this publication
Library holdingsSearch Newcastle University Library for this item