Abstract:

Endtoend performance of multihop wireless communication systems with nonregenerative relays operating over independent not necessarily identically distributed Weibull fading channels is presented. Based on the inequality between harmonic and geometric means, the endtoend signaltonoise ratio (SNR) is bounded upper. Novel expressions are derived for the momentgenerating, probability density, and moment functions of the bound in closed form. Using these statistical results, convenient closedform bounds are obtained for the average endtoend SNR, the channel capacity, and the average biterror probability of multihop wireless communication systems. Numerical results show the tightness of the proposed bounds.

Key words: fading channel, non-regenerative relay, channel capacity, average bit-error probability