ICAR Research Data Repository for Knowledge Management
DSpace at IIT Bombay
View Archive InfoMetadata
| Field | Value |
| Title | Performance analysis of maximum likelihood decode and forward cooperative systems in Rayleigh fading |
| Names |
SHARMA, GVV
GANWANI, V DESAI, UB MERCHANT, SN |
| Date Issued | 2009 (iso8601) |
| Abstract | The bit error rate (BER) performance analysis of maximum-likelihood (ML) based decode and forward (DF) cooperative diversity systems has been a subject of considerable interest. Exact analysis of ML-DF transmission has been considered a challenging problem due to the nonlinear characteristic of the ML detector. In this paper, we provide exact expressions for the BER of ML-DF cooperative systems employing a single relay. We extend these results to the case of multiple relays for the piecewise linear (PL) combiner, that is known to be a close approximation of the ML detector. This is done by using a novel theory of conditionally Gaussian random variables. By expressing the ML decision variable in terms of functions of conditionally Gaussian variables, exact expressions for the BER of the ML-DF system are obtained. Through simulation results, we verify the validity of the derived analytical expressions. |
| Genre | Proceedings Paper |
| Topic | Wireless Networks |
| Identifier | 2009 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-8,3967-3971 |