Zhao, Bo, Chen, Yunfei and Green, Roger (2012) Hard-input-hard-output capacity analysis of UWB BPSK systems with timing errors. IEEE Transactions on Vehicular Technology, Vol.61 (No.4). pp. 1741-1751. doi:10.1109/TVT.2012.2188418

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Abstract

The hard-input-hard-output capacity of a binary phase-shift keying (BPSK) ultrawideband system is analyzed for both additive white Gaussian noise and multipath fading channels with timing errors. Unlike previous works that calculate the capacity with perfect synchronization and/or multiple-access interference only, our analysis considers timing errors with different distributions, as well as the interpath (IPI), interchip (ICI), and intersymbol (ISI) interferences, as in practical systems. The sensitivity of the channel capacity to the timing error is examined. The effects of pulse shape, the multiple-access technique, the number of users, and the number of chips are studied. It is found that time hopping is less sensitive to the pulse shape and that the timing error has higher capacity than direct sequence due to its low duty of cycle. Using these results, one can choose appropriate system parameters for different applications.

Item Type:	Journal Article
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:	Faculty of Science > Engineering
Library of Congress Subject Headings (LCSH):	Ultra-wideband devices, Wireless communication systems
Journal or Publication Title:	IEEE Transactions on Vehicular Technology
Publisher:	IEEE
ISSN:	0018-9545
Official Date:	2012
Dates:	Date Event 2012 Published
Volume:	Vol.61
Number:	No.4
Page Range:	pp. 1741-1751
DOI:	10.1109/TVT.2012.2188418
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access

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