Novel iterative receivers for TR UWB systems

Author

Chen, Yunfei ; Beaulieu, Norman C. ; Wang, Shuyi

Author_Institution

Sch. of Eng., Univ. of Warwick, Coventry

Volume

13

Issue

4

fYear

2009

fDate

4/1/2009 12:00:00 AM

Firstpage

242

Lastpage

244

Abstract

Two novel receivers for transmitted-reference ultrawide bandwidth wireless systems are proposed. The new receivers are derived by using iterative algorithms to implement the channel template estimators employed in previous receivers. While the new receiver structures are simple, simulation results confirm their superiority over previous receivers. The performances of the new receivers can be further improved by optimizing the energy allocation between reference symbols and data symbols within one data packet and by optimizing the number of samples used in correlation. Numerical examples show that the optimization can provide performance gains of up to 4 dB in some cases.

Keywords

channel estimation; iterative methods; radio receivers; ultra wideband communication; TR UWB systems; channel template estimator; data packet; data symbols; energy allocation; iterative receivers; reference symbols; transmitted-reference ultrawide bandwidth wireless systems; Bandwidth; Delay; Energy consumption; Fading; Interference; Iterative algorithms; Maximum likelihood estimation; Multipath channels; Performance gain; RAKE receivers; Optimization, receiver, transmitted reference, ultra-wide bandwidth.;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2009.082110

Filename

4815070