Optimal PWR Codes for TH-PPM UWB Multiple-Access Interference Mitigation

Author

Kouassi, K. ; Clavier, Laurent ; Doumbia, I. ; Rolland, P.

Author_Institution

Inst. d´Electron., de Microelectron. et de Nanotechnol. (IEMN), Villeneuve d´Ascq, France

Volume

17

Issue

1

fYear

2013

fDate

Jan-13

Firstpage

103

Lastpage

106

Abstract

The objective of this work is to enhance performance of impulse radio ultra wide band transmissions in multiple-user environment, without implementing complex multiuser detectors. A new scrambling scheme, randomising the pulse width, is introduced at the transmitter. It allows both to improve the spectral occupancy of the transmitted signal and the resistance to interference. This informationless scrambler is analysed and optimised with an evolutionary algorithm to achieve, according to simulations, significant improvement.

Keywords

codes; interference suppression; multi-access systems; multiuser detection; radio transmitters; ultra wideband communication; TH-PPM UWB multiple-access interference mitigation; complex multiuser detector; evolutionary algorithm; impulse radio ultra wide band transmissions; multiple-user environment; optimal PWR code; transmitter; Bit error rate; Delay; Detectors; Genetic algorithms; Interference; Optimization; Signal to noise ratio; IR-UWB; Multi access; error probability; genetic algorithm; multiobjective optimisation;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2012.112812.122204

Filename

6365879