Yin, Zhendong, Wu, Mingyang, Yang, Zhutian, Zhao, Nan and Chen, Yunfei (2017) A joint multiuser detection scheme for UWB sensor networks using waveform division multiple access. IEEE Access, 5 . pp. 11717-11726. doi:10.1109/ACCESS.2017.2713802 ISSN 2169-3536.

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Abstract

A joint multiuser detection (MUD) scheme for wireless sensor networks (WSNs) is proposed to suppress multiple access interference (MAI) caused by a large number of sensor nodes. In WSNs, waveform division multiple access ultra-wideband (WDMA-UWB) technology is well suited for robust communications. Multiple sensor nodes are allowed to transmit modulated signals by sharing the same time periods and frequency bands using orthogonal pulse waveforms. This paper employs a mapping function based on the optimal multiuser detection to map the received bits into the mapping space where error bits can be distinguished. In order to revise error bits caused by MAI, the proposed joint MUD scheme combines the mapping function with suboptimal algorithms. Numerical results demonstrate that the proposed MUD scheme provides good performances in terms of suppressing MAI and resisting near-far effect with low computational complexity.

Item Type:	Journal Article
Divisions:	Faculty of Science, Engineering and Medicine > Engineering > Engineering
Journal or Publication Title:	IEEE Access
Publisher:	IEEE
ISSN:	2169-3536
Official Date:	20 June 2017
Dates:	Date Event 20 June 2017 Published 19 May 2017 Accepted
Volume:	5
Page Range:	pp. 11717-11726
DOI:	10.1109/ACCESS.2017.2713802
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Open Access (Creative Commons)

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