Performance of a Binary PPM Ultra-Wideband Communication System with Direct Sequence Spreading for Multiple Access

TitlePerformance of a Binary PPM Ultra-Wideband Communication System with Direct Sequence Spreading for Multiple Access
Publication TypeJournal Article
Year of Publication2012
AuthorsMagana, M. E., H. Liu, and V. Venkatesan
JournalWireless Personal Communications
Volume65
Issue1
Pagination125 - 142
Date Published07/2012
ISSN1572-834X
Abstract

In this paper, we present an analysis of the BER performance of an ultra-wideband (UWB) system with pulse position modulation (PPM) for data modulation and direct sequence (DS) spreading for multiple access over indoor lognormal fading channels. A rake receiver is used to combine a subset of the resolvable multipath components using the maximal ratio combining technique. Inter-path and multiple-access interferences are modeled and incorporated into the bit-error-rate expressions. The analytical and simulation results allow one to quantify many critical aspects of a DS-PPM UWB system such as the gain of the optimally spaced signaling scheme over the orthogonal signaling scheme, the potential error floor given a specific channel multipath delay spread and the number of interfering users, tolerance of the system to timing jitter, and impact of user codes.

DOI10.1007/s11277-011-0231-9
Short TitleWireless Pers Commun