Title :
Composite Pulse-Multipath Channel Estimation for IR-UWB Communication System
Author :
Liu Zhiyong ; Zhang Qinyu ; Zhang Naitong
Author_Institution :
Shenzhen Grad. Sch., Harbin Inst. of Technol., Shenzhen, China
Abstract :
In this paper, we develop a composite pulse-multipath channel estimation approach for impulse radio-ultra wideband (IR-UWB) system. The approach is realized by means of the nearest neighbor (NN) estimation algorithm. This reconstructed signal is subsequently used as a reference template in a correlator-based detector. The bit error rate (BER) performance of the proposed approach is analyzed and compared to that of traditional correlator-based detector. Extensive simulations show that for different propagation scenarios and transfer rates, detectors based on NN composite pulse-multipath channel estimation outperform traditional correlator-based detector.
Keywords :
channel estimation; correlation methods; error statistics; multipath channels; signal detection; signal reconstruction; ultra wideband communication; BER performance; IR-UWB communication system; NN estimation algorithm; bit error rate; composite pulse-multipath channel estimation; correlator-based detector; impulse radio-ultra wideband system; nearest neighbor estimation algorithm; propagation scenario; reference template; signal reconstruction; Bit error rate; Channel estimation; Delay effects; Detectors; Fading; Multipath channels; Nearest neighbor searches; Neural networks; Pulse modulation; RAKE receivers;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2009. WiCom '09. 5th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-3692-7
Electronic_ISBN :
978-1-4244-3693-4
DOI :
10.1109/WICOM.2009.5305541
