Title :
On the achievable information rate of selective Rake reception in UWB systems
Author :
Geng, Chunhua ; Pei, Yukui ; Wen, Wujie ; Zhu, Liang ; Ge, Ning
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
Abstract :
In this paper, the achievable information rate of selective Rake (S-Rake) receivers with pulse shaping filters is studied over realistic UWB channels. A theoretical framework is proposed to evaluate the performance gap between the S-Rake receiver with pulse shaping filters and the optimum whitened matched filter (WMF) receiver. This framework measures the effect of such key system parameters as the shaping filter excess bandwidth, the multipath diversity order in S-Rake receivers and the information rate of interest on the performance loss, hence provides valuable insights for practical UWB receiver design. Simulation results are presented for the cases of S-Rake receivers with root raised cosine (RRC) filters under various transmission scenarios.
Keywords :
diversity reception; pulse shaping; radio receivers; radio reception; ultra wideband communication; UWB channels; UWB receiver; UWB systems; information rate; multipath diversity order; optimum whitened matched filter receiver; pulse shaping filters; root raised cosine filters; selective Rake receivers; selective Rake reception; Fingers; Matched filters;
Conference_Titel :
Communication Technology (ICCT), 2010 12th IEEE International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-6868-3
DOI :
10.1109/ICCT.2010.5688713
