Title :
Novel Distributed Space-Time Trellis Codes for Relay Systems over Cascaded Rayleigh Fading
Author :
Haci Ilhan;Ibrahim Altunbas;Murat Uysal
Author_Institution :
Department of Electronics and Communication Engineering, Istanbul Technical University, 34469 Istanbul, Turkey
Abstract :
In this letter, we consider the deployment of distributed space-time trellis codes (STTCs) for user cooperation. We derive a pairwise error probability (PEP) expression for distributed STTCs over cascaded Rayleigh fading channels. Using the derived PEP expression, we determine a code design criterion and propose novel 4-/8-/16-state 4-PSK and 8-/16-state 8-PSK distributed STTCs through a systematic code search. We confirm the superiority of the proposed codes through extensive Monte-Carlo simulations.
Keywords :
"Error analysis","Rayleigh channels","Convolutional codes","Modulation","Generators","Systematics"
Journal_Title :
IEEE Communications Letters
DOI :
10.1109/LCOMM.2010.102610.101133
