Error Probability of DPPM UWB Systems over Nakagami Fading Channels with Receive Diversity
1 Department of Electrical Engineering, Ocean University of China, Qingdao 266100, China
2 Department of Electrical and Computer Engineering, University of Victoria, Victoria, BC, Canada, V8W 3P6
EURASIP Journal on Wireless Communications and Networking 2011, 2011:761369 doi:10.1155/2011/761369Published: 13 March 2011
We consider differential-pulse position modulation (DPPM) in an ultra wideband (UWB) communication system. A typical format for a DPPM signal in a UWB system is derived from that of a pulse position modulation (PPM) signal. The error probabilities of a UWB DPPM system with receive diversity over additive white Gaussian noise (AWGN) and Nakagami fading channels are derived. Both single-user and multiuser environments are considered. Performance results are presented which show that the frame error rate (FER) with DPPM is better than that with PPM, and the FER performance can be improved significantly by receive diversity.