Open AccessPerformance analysis of randomised space–time block codes for amplify‐and‐forward cooperative relaying
Author(s) -
Verde Francesco
Publication year - 2013
Publication title -
iet communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.355
H-Index - 62
eISSN - 1751-8636
pISSN - 1751-8628
DOI - 10.1049/iet-com.2013.0170
Subject(s) - computer science , pairwise error probability , space–time block code , coding (social sciences) , block code , outage probability , algorithm , telecommunications , statistics , mathematics , decoding methods , fading
In recent studies (Verde et al .), capitalising on randomised space–time block coding (STBC), a decentralised coding method has been developed for amplify‐and‐forward (A&F) relays, which can closely achieve the performance of a centralised A&F linear dispersion coding (LDC) scheme and notebly outperform the decentralised A&F LDC counterpart, by requiring a reduced amount of signalling and processing overhead. However, A&F relaying process introduces correlation among the noise samples at the destination which, along with the non‐Gaussian nature of the relaying channel and the fact that the relays are located in different positions, significantly complicates the performance analysis of the system. In this study, a theoretical performance analysis of the randomised STBC A&F rule is carried out in terms of average pairwise error probability to evaluate its attainable diversity order. Numerical results are provided to corroborate the analytical findings.