Title :
Two Iterative Algorithms for Nondata_aided Channel Estimation in DS_UWB System
Author :
Liu, Fang ; Yang, Dacheng
Author_Institution :
Sch. of Telecommun. Eng., BUPT, Beijing
Abstract :
In this paper, two iterative algorithms for NDA (nondata_aided) channel estimation are introduced to the DSJJWB system. The two iterative algorithms are named MMSE (minimum-mean-square-error) iterative algorithm and NMMSE(nonminimum-mean-square-error) iterative algorithm. The BER performances of the MRC Rake receiver with the two iterative algorithms are verified and compared via simulations. The simulation results show that the MMSE iterative algorithm performs better than NMMSE iterative algorithm for NDA channel estimation.
Keywords :
channel estimation; error statistics; iterative methods; least mean squares methods; radio receivers; BER; DS_UWB system; MRC Rake receiver; iterative algorithms; nondata aided channel estimation; nonminimum mean square error; Algorithm design and analysis; Analytical models; Bit error rate; Channel estimation; Fading; Iterative algorithms; Multipath channels; Multiple access interference; Performance analysis; Ultra wideband technology;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2007. WiCom 2007. International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-1311-9
DOI :
10.1109/WICOM.2007.156
