Nonorthogonal Pulse Position Modulation for Time-Hopping Multiple Access UWB Communications

Hao ZHANG  T. Aaron GULLIVER  

Publication
IEICE TRANSACTIONS on Communications   Vol.E92-B   No.6   pp.2102-2111
Publication Date: 2009/06/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Wireless Communication Technologies
Keyword: 
ultra wideband (UWB),  pulse position modulation (PPM),  timing jitter,  multiple access,  

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Summary: 
In this paper, we study the capacity and performance of nonorthogonal pulse position modulation (NPPM) for Ultra-Wideband (UWB) communication systems over both AWGN and IEEE802.15.3a channels. The channel capacity of NPPM is determined for a time-hopping multiple access UWB communication system. The error probability and performance bounds are derived for a multiuser environment. It is shown that with proper selection of the pulse waveform and modulation index, NPPM can achieve a higher capacity than orthogonal PPM, and also provide better performance than orthogonal PPM with the same throughput.