Title :
Statistical performance of correlation-matching based channel estimators for aperiodic time hopping UWB systems
Author :
Tang, Jin ; Xu, Zhengyuan
Author_Institution :
Dept. of Electr. Eng., California Univ., Riverside, CA, USA
fDate :
29 Nov.-3 Dec. 2004
Abstract :
In a time hopping ultra-wideband (UWB) impulse radio system, each user is assigned a unique time-hopping sequence. If aperiodic codes are used for time-hopping sequences, some benefits, such as smoothed spectrum and better performance, can be achieved. Recently, a correlation matching method has been proposed to estimate channels in aperiodic time-hopping systems. Performance of corresponding multiuser and single user channel estimators is studied in This work. Closed-form analytical results are provided and verified by computer simulation.
Keywords :
binary sequences; channel coding; channel estimation; correlation methods; digital radio; statistical analysis; ultra wideband communication; UWB systems; aperiodic codes; aperiodic time hopping; channel estimators; correlation matching; smoothed spectrum; statistical performance; time-hopping sequence; ultra-wideband impulse radio; Amplitude modulation; Computer simulation; Fading; Maximum likelihood estimation; Pulse modulation; Signal resolution; Spread spectrum communication; Ultra wideband technology; Wireless communication; Yield estimation;
Conference_Titel :
Global Telecommunications Conference, 2004. GLOBECOM '04. IEEE
Print_ISBN :
0-7803-8794-5
DOI :
10.1109/GLOCOM.2004.1377915
