A performance comparison of multi-hop wireless ad hoc network routing protocols
MobiCom '98 Proceedings of the 4th annual ACM/IEEE international conference on Mobile computing and networking
Capacity of Ad Hoc wireless networks
Proceedings of the 7th annual international conference on Mobile computing and networking
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
Using directional antennas for medium access control in ad hoc networks
Proceedings of the 8th annual international conference on Mobile computing and networking
Does the IEEE 802.11 MAC protocol work well in multihop wireless ad hoc networks?
IEEE Communications Magazine
Efficient deafness avoidance in wireless ad hoc and sensor networks with directional antennas
PE-WASUN '05 Proceedings of the 2nd ACM international workshop on Performance evaluation of wireless ad hoc, sensor, and ubiquitous networks
| Hi-index | 0.00 |
Many wireless ad hoc networks exploit MACprotocols with conventional omni-directionalantennas. Smart antennas, however, improveperformance by avoidance of radio interference andeffective use of limited resources of mobile nodes. Thispaper proposes a MAC protocol using a directionalbeam form for ad hoc networks called SWAMP.SWAMP consists of two types of access modes, i.e.,OC-mode and EC-mode, which are selected accordingto the relative position between a sender and areceiver. OC-mode forms a beam in the restricted areaand uses omni-NAV shorter than an ordinary NAV toimprove spatial utilization. In EC-mode, a higher gainand narrower beam is used to extend a transmissionrange. Moreover, SWAMP includes a method ofobtaining information of neighbors indispensable forbeam forming. Simulation results show the throughputadvantages over omni-directional antennas.