SpringerOpen Newsletter

Receive periodic news and updates relating to SpringerOpen.

Open Access Research Article

Capacity of Time-Hopping PPM and PAM UWB Multiple Access Communications over Indoor Fading Channels

Hao Zhang1* and TAaron Gulliver2

Author Affiliations

1 Department of Electrical Engineering, Ocean University of China, 5 Yushan Road, Qingdao 266003, China

2 Department of Electrical & Computer Engineering, University of Victoria, P.O. Box 3055, STN CSC, Victoria, BC, Canada, V8S 4W9

For all author emails, please log on.

EURASIP Journal on Wireless Communications and Networking 2008, 2008:273018  doi:10.1155/2008/273018

Published: 4 March 2008

Abstract

The capacity of time-hopping pulse position modulation (PPM) and pulse amplitude modulation (PAM) for an ultra-wideband (UWB) communication system is investigated based on the multipath fading statistics of UWB indoor wireless channels. A frequency-selective fading channel is considered for both single-user and multiple-user UWB wireless systems. A Gaussian approximation based on the single-user results is used to derive the multiple access capacity. Capacity expressions are derived from a signal-to-noise-ratio (SNR) perspective for various fading environments. The capacity expressions are verified via Monte Carlo simulation.