Paper Info
Title
Handling Asymmetry in Gain in Directional Antenna Equipped Ad Hoc Networks
Abstract
The deployment of traditional higher layer protocols (especially the IEEE 802.11 MAC protocol at the MAC layer) with directional antennae could lead to problems from an increased number of collisions; this effect is primarily seen due to three specific effects: (i) an increase in the number of hidden . terminals; (ii) the problem of deafness and, (iii) a difficulty in determining the locations of neighbors. In this work we propose a new MAC protocol that incorporates circular RTS and CTS transmissions. We show that the circular transmission of the control messages helps avoid collisions of both DATA and ACK packets from hidden terminals. Our protocol intelligently determines the directions in which the control messages ought to be transmitted so as to eliminate redundant transmissions in any given direction. We perform extensive simulations and analyze the obtained results in order to compare our scheme with previously proposed protocols that have been proposed for use in directional antenna equipped ad hoc networks. Our simulation results clearly demonstrate the benefits of incorporating both circular RTS and CTS messages in terms of the achieved aggregate throughput.
Year
DOI
Venue
2005
10.1109/PIMRC.2005.1651648
PIMRC
Keywords
Field
DocType
ad hoc networks,ad hoc network,directional antenna,data
Multiple Access with Collision Avoidance for Wireless,Software deployment,Computer science,Network packet,Computer network,Real-time computing,Directive antennas,Directional antenna,Throughput,Wireless ad hoc network,Asymmetry
Conference
Citations 
PageRank 
References 
23
1.02
5
Authors
5
Name
Order
Citations
PageRank
Gentian Jakllari161741.46
Ioannis Broustis242529.27
Thanasis Korakis31401115.56
Srikanth V. Krishnamurthy464561.55
Leandros Tassiulas57692757.41