Reduced-rank detection for hybrid direct-sequence time-hopping UWB systems in Nakagami-m fading channels

Qasim Zeeshan Ahmed, Lie Liang Yang

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

1 Citation (Scopus)


This paper investigates and compares the performance of hybrid direct-sequence time-hopping (DS-TH) ultrawide bandwidth (UWB) systems using full-rank and various reduced-rank detections when minimum mean-square error (MMSE) principles are applied, while communicating over Nakagami-m fading channels. In addition to the fullrank MMSE detection, three classes of reduced-rank MMSE techniques are investigated, which are derived based on the principles of principal components (PC), cross-spectral metric (CSM) and Taylor polynomial approximation (TPA), respectively. Our study and simulation results show that the reduced-rank techniques constitute a family of promising detection techniques for UWB systems, which are capable of achieving similar bit error rate (BER) performance as the full-rank detection, while with a detection complexity that is significantly lower than that of the full-rank detection.

Original languageEnglish
Title of host publicationThe 68th IEEE Vehicular Technology Conference, VTC 2008-Fall
Number of pages5
Publication statusPublished - 1 Dec 2008
Externally publishedYes
Event68th Semi-Annual IEEE Vehicular Technology Conference - Calgary, Canada
Duration: 21 Sep 200824 Sep 2008
Conference number: 68


Conference68th Semi-Annual IEEE Vehicular Technology Conference
Abbreviated titleVTC 2008-Fall


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