Abstract
This article presents a study on the use of deterministic least squares criteria combined with the minimum mean square error method for the purpose of computing filter coefficients of the channel shortening equalizer. This method is well known to alleviate inter-symbol interference in time hopping UWB systems. The validity of this method is applied to shorten the impulse response of the effective UWB channels and, therefore, reduce the complexity of the rake receiver. Results show a very promising advantage compared to partialrake (P-Rake), selective-rake (S-Rake) and optimal maximum shortening signal-to-noise ratio methods.
Publisher
National Institute of Telecommunications
Subject
Electrical and Electronic Engineering,Computer Networks and Communications
Reference17 articles.
1. [1] M. Z. Win and R. A. Scholtz, "Ultra-wide bandwidth time-hopping spread-spectrum impulse radio for wireless multiple-access communications", IEEE Trans. on Commun., vol. 48, no. 4, pp. 679-691, 2000 (DOI: 10.1109/26.843135).
2. [2] L. Fang and H. Zailu, "Low complexity multi-user detectors of TH-PPM UWB system", in Proc. of Int. Conf. on Wirel. Commun., Network. and Mob. Comput., Wuhan, China, 2005 (DOI: 10.1109/WCNM.2005.1544041).
3. [3] A. F. Molisch, "Channel models for ultra-wide band personal area networks", IEEE Wirel. Commun., vol. 10, no. 6, pp. 14-21, 2003 (DOI: 10.1109/MWC.2003.1265848).
4. [4] Z. Ahmadian and L. Lampe, "Robust design of widely linear preequalization filters for pre-rake UWB systems", IEEE Trans. Commun., vol. 61, no. 10, pp. 4206-4217, 2013 (DOI: 10.1109/TCOMM.2013.0828131.120920).
5. [5] A. Rajeswaran, Somayazulu, and V. S. Foerster, "Rake performance for a pulse based UWB system in a realistic UWB indoor channel", in Proc. Int. Conf. on Commun. ICC'03, Anchorage, AK, USA, 2003 (DOI: 10.1109/ICC.2003.1204551).
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献