Least mean square aided adaptive detection in hybrid direct-sequence time-hopping ultrawide bandwidth systems

Qasim Zeeshan Ahmed, Wei Liu, Lie Liang Yang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

10 Citations (Scopus)


In this contribution an adaptive detection scheme based on least mean square (LMS) principles is proposed and investigated in the context of the hybrid direct-sequence time-hopping ultrawide bandwidth (DS-TH UWB) systems. The bit-error-rate (BER) performance of the hybrid DS-TH UWB system is investigated when communicating over the UWB channels modelled by the Saleh-Valenzuela (S-V) channel model. Furthermore, since both the pure DS-UWB and pure TH-UWB constitute special examples of the hybrid DS-TH UWB, their BER performance is also investigated in this contribution for the sake of comparison with that of the hybrid DS-TH UWB. Our study and simulation results show that the LMS-aided adaptive detection can be a feasible detection scheme for deployment in practical DS-, TH- or hybrid DS-TH UWB systems. It can be shown that, with the aid of a training sequence of reasonable length, the considered UWB schemes are capable of achieving a BER performance which is close to that achieved by the minimum mean-square error (MMSE) detector with perfect channel knowledge.

Original languageEnglish
Title of host publication2008 IEEE 67th Vehicular Technology Conference-Spring, VTC
Number of pages5
Publication statusPublished - 28 Jul 2008
Externally publishedYes
Event67th Vehicular Technology Conference - Spring - Marina Bay, Singapore
Duration: 11 May 200814 May 2008
Conference number: 67
https://dblp.org/db/conf/vtc/index (Conference History)
https://dblp.org/db/conf/vtc/vtc2008s.html (Specific Conference)


Conference67th Vehicular Technology Conference - Spring
Abbreviated titleVTC Spring 2008
CityMarina Bay
Internet address


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