Multiuser detections for asynchronous M-ary PPM TH-UWB system

Wen Jun Lin, Szu Lin Su, Ye Shun Shen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The performance of multiple access interference (MAI) cancellations for the asynchronous M-ary pulse position modulation (PPM) time hopping (TH) ultra-wideband (UWB) systems are investigated. Parallel interference cancellation (PIC) and successive interference cancellation (SIC) are the most popular interference cancellation schemes. However, both the PIC and SIC have some shortcomings that the PIC suffers an error-propagation effect due to the erroneous MAI cancellation and the SIC imports a long processing delay caused by the large number of user. Therefore, a low-complexity iterative interference cancellation (IIC) scheme is proposed in this paper. The IIC scheme is based on the concept of iteratively cancelling MAI from those users whose symbols have been reliably detected. The performances of these interference cancellation schemes are compared in terms of the symbol error rate (SER) for the asynchronous M-ary PPM TH-UWB systems. The simulation results show the proposed IIC scheme performs better than PIC and SIC detectors in a MAI dominant environment.

Original languageEnglish
Title of host publication2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2008
DOIs
Publication statusPublished - 2008 Dec 1
Event2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2008 - Poznan, Poland
Duration: 2008 Sep 152008 Sep 18

Publication series

NameIEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC

Other

Other2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2008
CountryPoland
CityPoznan
Period08-09-1508-09-18

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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    Lin, W. J., Su, S. L., & Shen, Y. S. (2008). Multiuser detections for asynchronous M-ary PPM TH-UWB system. In 2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2008 [4699571] (IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC). https://doi.org/10.1109/PIMRC.2008.4699571