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

Author

Hao Zhang and Gulliver, T. Aaron

Subjects
*PULSE modulation, *AMPLITUDE modulation, *ULTRA-wideband devices, *RADIO transmitter fading, *SIGNAL-to-noise ratio, *WIRELESS communications
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. [ABSTRACT FROM AUTHOR]

Published
2008
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