Title :
Code selection for channel estimation in DS-UWB system
Author :
Liu, Fang ; Wang, Deqiang ; Yuan, Dongfeng
Author_Institution :
Sch. of Inf. Sci. & Eng., Shandong Univ., Jinan, China
Abstract :
In this paper, two kinds of direct sequences are introduced to the channel estimation in DS-UWB system, and applied in the two channel estimation methods named DA (data-aided) channel estimation and NDA (nondata-aided) channel estimation. The BER performances of the MRC Rake receiver with the two sequences are verified and compared via simulations. The simulation results show that ZCD (zero correlation duration) code performs better than Walsh code with DA channel estimation, but Walsh code outperforms ZCD with NDA channel estimation.
Keywords :
channel estimation; codes; error statistics; spread spectrum communication; ultra wideband communication; BER; DS-UWB system; Rake receiver; Walsh code; code selection; data-aided channel estimation; nondata-aided channel estimation; zero correlation duration code; Bit error rate; Channel estimation; Data engineering; Equations; Fading; Information science; Multipath channels; Multiple access interference; Neural networks; Performance analysis;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2005. Proceedings. 2005 International Conference on
Print_ISBN :
0-7803-9335-X
DOI :
10.1109/WCNM.2005.1544046
