NDLI: A new multiple access protocol for time-hopping UWB ad-hoc wireless networks

Content Provider	IEEE Xplore Digital Library
Author	Hanbing Shen Weihua Zhang Xizhi An Seok ho Kim Wei Liu Kyung sup Kwak
Copyright Year	2005
Description	Author affiliation: Graduate Sch. of Inf. Technol. & Telecommun., Inha Univ., Incheon, South Korea (Hanbing Shen; Weihua Zhang; Xizhi An; Seok ho Kim)
Abstract	Ultra-wide bandwidth (UWB) is a prospective radio technology for wireless networks. As being approval by FCC, UWB radio has received much attention. In this paper, we propose a new multiple access protocol for time-hopping UWB ad-hoc network. As UWB system is a carrier-less impulse radio system, it is cumbersome to implement the carrier sensing capability needed in popular approaches such as carrier-sense, multiple access with collision avoidance (CSMA/CA) MAC protocols. The novel multiple access scheme to detect the busy medium and reduce the probability of collisions in TH UWB ad-hoc network is given out and evaluated. In UWB TH modulation, the spreading codes for target node are used. In our scheme, another binary PN sequence according to the destination node is also added to the modulation scheme to sense the busy medium before transmission. Communications outside the definition of directly transmission region (DTR) have to relay over intermediate nodes.
Starting Page	842
Ending Page	845
File Size	1052868
Page Count	4
File Format	PDF
ISBN	0780395387
DOI	10.1109/ISCIT.2005.1566998
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-10-12
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless networks Access protocols Bandwidth FCC Media Access Protocol Ad hoc networks Multiaccess communication Collision avoidance Relays Modulation coding
Content Type	Text
Resource Type	Article

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