On the performance of ad hoc networks with beamforming antennas
MobiHoc '01 Proceedings of the 2nd ACM international symposium on Mobile ad hoc networking & computing
Directional virtual carrier sensing for directional antennas in mobile ad hoc networks
Proceedings of the 3rd ACM international symposium on Mobile ad hoc networking & computing
Using directional antennas for medium access control in ad hoc networks
Proceedings of the 8th annual international conference on Mobile computing and networking
A MAC protocol for full exploitation of directional antennas in ad-hoc wireless networks
Proceedings of the 4th ACM international symposium on Mobile ad hoc networking & computing
Deafness: A MAC Problem in Ad Hoc Networks when using Directional Antennas
ICNP '04 Proceedings of the 12th IEEE International Conference on Network Protocols
Directional collision avoidance in ad hoc networks
Performance Evaluation - Special issue: Distributed systems performance
An MAC Protocol for Wireless Ad-hoc Networks Using Smart Antennas
ICPADS '05 Proceedings of the 11th International Conference on Parallel and Distributed Systems - Volume 01
On Designing MAC Protocols for Wireless Networks Using Directional Antennas
IEEE Transactions on Mobile Computing
An Overview of MAC Protocols with Directional Antennas in Wireless ad hoc Networks
ICCGI '06 Proceedings of the International Multi-Conference on Computing in the Global Information Technology
Fast transfer of channel state information in wireless systems
IEEE Transactions on Signal Processing
Cross-layer issues in MAC protocol design for MIMO ad hoc networks
IEEE Wireless Communications
Smart antenna techniques and their application to wireless ad hoc networks
IEEE Wireless Communications
CSMA/CA performance under high traffic conditions: throughput and delay analysis
Computer Communications
Performance analysis of the IEEE 802.11 distributed coordination function
IEEE Journal on Selected Areas in Communications
Ad hoc networking with directional antennas: a complete system solution
IEEE Journal on Selected Areas in Communications
ADMAC with integrated destination discovery for ad hoc networks
IEEE Communications Letters
An interference avoidance MAC protocol design in mobile ad hoc networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Hi-index | 0.00 |
We examine in this paper the benefits of beamforming techniques in ad hoc networks. We first devise a novel MAC paradigm for ad hoc networks when using these techniques in multipath fading environment. In such networks, the use of conventional directional antennas does not necessarily improve the system performance. On the other hand, the exploitation of the potential benefits of smart antenna systems and especially beamforming techniques needs a prior knowledge of the physical channel. Our proposition performs jointly channel estimation and radio resource sharing. We validate the fruitfulness of the proposed MAC and we evaluate the effects of the channel estimation on the network performance. We then present an accurate analytical model for the performance of IEEE 802.11 MAC protocol. We extend the latter model, by introducing the fading probability, to derive the saturation throughput for our proposed MAC when the simplest beamforming strategy is used in real multipath fading ad hoc networks. Finally, numerical results validate our proposition.