Title :
Generalizing the sampling property of the Q-function for Error Rate analysis of cooperative communication in fading channels
Author :
Aktas, Tugcan ; Yilmaz, Ayhan Ozan ; Aktas, Erdem
Author_Institution :
Dept. of Electr. & Electron. Eng., Middle East Tech. Univ., Ankara, Turkey
Abstract :
This paper extends some approximation methods that are used to identify closed form Bit Error Rate (BER) expressions which are frequently utilized in investigation and comparison of performance for wireless communication systems in the literature. By using this group of approximation methods, some expectation integrals, whose exact analyses are intractable and whose Monte Carlo simulation computations have high complexity, can be computed. For these integrals, by using the sampling property of the integrand functions of one or more arguments, reliable BER expressions revealing the diversity and coding gains are derived. Although the methods we present are valid for a larger class of integration problems, in this work we illustrate the method by showing the step by step derivation of the BER expressions for a canonical cooperative communication scenario as well as a network coded system scenario. The derived expressions agree with the simulation results for a very wide range of signal-to-noise ratio (SNR) values.
Keywords :
Monte Carlo methods; approximation theory; cooperative communication; diversity reception; error statistics; fading channels; network coding; sampling methods; BER expressions; Monte Carlo simulation computations; Q-function; SNR values; approximation methods; canonical cooperative communication; closed form bit error rate expressions; coding gains; diversity gains; expectation integrals; fading channels; integrand functions; network coded system scenario; sampling property; signal-to-noise ratio values; wireless communication systems; Approximation methods; Bit error rate; Encoding; Fading; Relays; Signal to noise ratio; Simulation;
Conference_Titel :
Information Theory Proceedings (ISIT), 2013 IEEE International Symposium on
Conference_Location :
Istanbul
DOI :
10.1109/ISIT.2013.6620185