The bit error rate performance evaluation has been done for Human body area channel model CM3 by comparing the efficient rake receiver structures for UWB for different signaling techniques. The BER has been obtained over the power delay profile using M- ary signaling schemes i.e. MPPM (M-ary pulse phase modulation) and M-ary BOK (bi-orthogonal keying) and thus with the results obtained, performance evaluation for different rake receivers structures has been performed. Through simulative investigations, it has been analyzed that MBOK is more suitable for UWB CM3 and for rake structures, all-Rake is the best rake structure but it's an ideal rake receiver and cannot be practically implemented whereas S-rake receiver gives better performance over P-Rake for optimum number of taps.
Generalized-Gamma channel model has attracted the attention of many researchers in literature lately because of its versatility and flexibility to generalize other popular channel models like Rayleigh, Weibull, Nakagami-m to name a few. Lot of work has been reported based on output signal to noise ratio (SNR) as the main parameter but literature based on higher order moments of output SNR is relatively sparse. In this paper analysis of higher order moments in terms of skewness and kurtosis of output SNR is presented using generalized gamma model. Analytic expressions for skewness and kurtosis of both transmitted signal and output SNR have been numerically evaluated and illustrated.
Show abstract
Full Text
