Wireless Communications: Principles and Practice
Wireless Communications: Principles and Practice
Using directional antennas for medium access control in ad hoc networks
Proceedings of the 8th annual international conference on Mobile computing and networking
Collision Avoidance in Single-Channel Ad Hoc Networks Using Directional Antennas
ICDCS '03 Proceedings of the 23rd International Conference on Distributed Computing Systems
Deafness: A MAC Problem in Ad Hoc Networks when using Directional Antennas
ICNP '04 Proceedings of the 12th IEEE International Conference on Network Protocols
The capacity of wireless networks
IEEE Transactions on Information Theory
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It is known that wireless ad hoc networks employing omnidirectional communications suffer from poor network throughput due to inefficient spatial reuse. Although the use of directional communications is expected to provide significant improvements, the lack of efficient mechanisms to deal with deafness and hidden terminal problems makes it difficult to fully explore its benefits. The main contribution of this work is to propose a Medium Access Control (MAC) scheme which aims to lessen the effects of deafness and hidden terminal problems in directional communications without precluding spatial reuse. Unlike other proposals that focus on exploring the characteristics of the physical layer, the proposed MAC protocol relies on simple mechanisms that can be easily coupled with a directional antenna without requiring major modifications to the current MAC standard.