Research on Multiband Impulse Radio UWB System based on PSWF in Multipath Fading Channel

Chen Lili, Dou Zheng, Yan Li, Lin Yun
2013 International Journal of Signal Processing, Image Processing and Pattern Recognition  
This paper presents an architecture of Multiband Impulse Radio UWB (MB-IR-UWB) system based on Prolate Spheroidal Wave Function (PSWF) by binary time hopping pulse position modulation (TH-PPM) over multipath fading channel. In order to combat multipath fading, Rake receiver using maximal ratio combining (MRC) is applied to this system, which can successfully capture the unique multipath-rich property and multipath-clustering phenomenon of UWB channels. Through simulation, a comparison of system
more » ... performance between different types of Rake receiver is analyzed. What's more, considered multipath delay spread, a data rate estimation of the communicating system is given. Finally we get the conclusion that increasing data rate is best-achieved by increasing the number of subband instead of decreasing the symbol repetition period.
doi:10.14257/ijsip.2013.6.6.19 fatcat:7dqenfwuyzg6rlj6h4z5q5cp34