Title :
The Performance Analysis of Channel Estimation on Wireless Ultra-Wideband Communication Systems
Author :
Bi, Xiaojun ; Zheng, Jing ; Gu, Guochang ; Weng, Ningning
Author_Institution :
Sch. of Inf. & Commun. Eng., China Eng. Univ., Harbin
Abstract :
Channel estimation is one of the key technologies in the wireless ultra wideband communication systems which must be solved. In this paper, aiming at the difference of Direct-Sequence UWB system and Time- Hopping system, after the analysis of architecture, signal and IEEE 802.15.3a channel model , and the performance of maximum likelihood channel estimation, research additional character number .At the receiving end adopting most ratio combined (MRC) Rake receiver, by analyzing the Delay and the Loss which generated by channels, the simulation results show that ultra wideband radio is of good performance in low SNR, direct sequence ultra wideband scheme are better than that of binary time- hopping pulse-amplitude-modulation scheme.
Keywords :
channel estimation; maximum likelihood estimation; pulse amplitude modulation; radio networks; radio receivers; ultra wideband communication; IEEE 802.15.3a channel model; direct-sequence UWB system; maximum likelihood channel estimation; most ratio combined Rake receiver; pulse-amplitude-modulation scheme; time-hopping system; wireless ultra- wideband communication systems; Channel estimation; Fading; Maximum likelihood estimation; Multipath channels; Performance analysis; Performance loss; Signal analysis; Ultra wideband communication; Ultra wideband technology; Wireless communication; Direct-Sequence UWB system; Time-Hopping system; wireless ultra wideband;
Conference_Titel :
Internet Computing in Science and Engineering, 2008. ICICSE '08. International Conference on
Conference_Location :
Harbin
Print_ISBN :
978-0-7695-3112-0
Electronic_ISBN :
978-0-7695-3112-0
DOI :
10.1109/ICICSE.2008.16
