Upper Bounds on the Number of Channels to Ensure Collision-Free Communications in Multi-Channel Wireless Networks Using Directional Antennas

Hong-Ning Dai, Kam-Wing Ng, Min-You Wu

Research output: Chapter in book/report/conference proceedingConference proceedingpeer-review

3 Citations (Scopus)

Abstract

Recent studies have found that using multiple channels can separate concurrent transmissions and significantly improve network throughput. However, these studies have only considered wireless nodes that are equipped with omni-directional antennas, which have high interference. On the other hand, other researchers have found that using directional antennas in wireless networks can reduce interference and improve the network performance. But their studies have only considered single channel to be used in wireless networks with directional antennas. Thus, integrating the two technologies of multiple channels and directional antennas together can potentially bring more benefits. Some previous works have studies the capacity on the multi-channel wireless networks using directional antennas. However, the channel assignment problem of such networks has not been well studied. In this paper, we study the channel assignment problem in the multi-channel wireless networks using directional antennas. In particular, we study the problem: given a set of wireless nodes equipped with directional antennas, how many channels are needed to ensure collision-free transmission? We derive the upper bounds on the number of channels, which depend on the node density. We also construct several scenarios to examine the tightness of the derived bounds. Our result can be used to estimate the number of channels required for a practical wireless network. Besides, our results can also be used to provide a suggestion on the proper node density in the node deployment when the number of channels is given for a wireless network.
Original languageEnglish
Title of host publication2010 IEEE Wireless Communication and Networking Conference
PublisherIEEE
Pages1-6
Number of pages6
ISBN (Electronic)9781424463985, 9781424463978
ISBN (Print)9781424463961
DOIs
Publication statusPublished - Apr 2010
Event2010 IEEE Wireless Communication and Networking Conference - Sydney, NSW, Australia
Duration: 18 Apr 201021 Apr 2010
https://ieeexplore.ieee.org/xpl/conhome/5504893/proceeding

Publication series

NameIEEE Conference on Wireless Communications and Networking
ISSN (Print)1525-3511
ISSN (Electronic)1558-2612

Conference

Conference2010 IEEE Wireless Communication and Networking Conference
Country/TerritoryAustralia
CitySydney, NSW
Period18/04/1021/04/10
Internet address

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