NDLI: Adaptive rate control with chip discrimination in UWB networks

Content Provider	IEEE Xplore Digital Library
Author	Lovelace, W.M. Townsend, J.K.
Copyright Year	2003
Description	Author affiliation: Dept. of Electr. & Comput. Eng., North Carolina State Univ., Raleigh, NC, USA (Lovelace, W.M.; Townsend, J.K.)
Abstract	A fundamental concern of any ad-hoc network is the mitigation of potential near/far power disparities that can occur anytime a node is communicating with a distant node in the presence of very close interfering transmitters. In this paper, we present a technique for adjusting the number of chips/bit to maximize throughput in such poor near/far power ratio environments. The technique leverages information derived from our chip discrimination approach, and also exploits the low duty cycle nature of ultra-wideband (UWB) radio. We present this simple method for detection of near pulse interference and develop it as one component for a peer-to-peer MAC layer protocol, to effect more efficient transmission rate control using only locally derived input. We demonstrate the efficacy of the technique using simulation in bursty, pulse limited environments. The technique provides improved throughput compared to fixed parameter links and equivalent theoretical M\|D\|1 queues.
Sponsorship	IEEE Microwave Theory and Techniques Soc. IEEE Northern Virginia Section
Starting Page	195
Ending Page	199
File Size	361396
Page Count	5
File Format	PDF
ISBN	0780381874
DOI	10.1109/UWBST.2003.1267831
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-11-16
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Programmable control Adaptive control Peer to peer computing Throughput Ad hoc networks Radio transmitters Ultra wideband technology Interference Media Access Protocol Queueing analysis
Content Type	Text
Resource Type	Article

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