NDLI: Data rate for DS-UWB communication systems in wireless personal area networks

Content Provider	IEEE Xplore Digital Library
Author	Yongwei Zhang Brown, A.K.
Copyright Year	2008
Description	Author affiliation: Sch. of Electr. & Electron. Eng., Univ. of Manchester, Manchester (Yongwei Zhang; Brown, A.K.)
Abstract	A direct sequence ultrawideband system has been investigated to examine the upper bound on the achievable throughput of such a system in a practical multipath environment of a typical office. A time domain 3-D ray tracing model is adopted to consider the specific communication environment. The channel impulse responses from a reference transmitter and/or interfering users are predicted from the deterministic 3-D model with time domain expressions. The simulations are carried out for a pragmatic antenna pattern e.g. the discone antennas rather than the ideal isotropic antenna considered in many previous simulations. Pulse distortions caused by antennas and scatterers along propagation paths, the inter-symbol interference and multi-user interference are taken into account. The source signals are carefully selected to ensure the radiated signal meet the requirements of the FCC emission mask. In a single-user system, the throughput is determined to converge to 725 Mbps at a range of 5 meters between transmitter and receiver, with a minimum pulse transmission period of 1.38 ns. In multi-user systems, the data rate per user reduces exponentially with the number of users to retain an acceptable bit-error performance. It is concluded that in a typical personal office space with 10 active users, the upper bound on the data rate per user can reduce to 34 Mbps with an average bit error rate of $10^{-4}.$
Starting Page	187
Ending Page	190
File Size	118619
Page Count	4
File Format	PDF
ISBN	9781424422166
DOI	10.1109/ICUWB.2008.4653315
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-09-10
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Monte Carlo methods Upper bound DS-UWB Transmitters Bit error rate Capacity Interference Receivers Throughput Multi-User Interference (MUI) Ultra wideband technology Inter-Symbol Interference(ISI)
Content Type	Text
Resource Type	Article

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