Adaptive range control using directional antennas in mobile ad hoc networks

This paper presents ARC (Adaptive Range Control), a communication range control mechanism using directional antennas to be implemented across multiple layers. ARC uses directional reception for range control rather than directional transmission such that extended communication links do not increase interference to other ongoing communications. It adaptively controls the communication range by estimating dynamically changing local network density based on the transmission activities around each network node. The experimental results using simulation with detailed physical layer, IEEE 802.11 DCF MAC, and AODV protocol models have shown the successful adaptation of communication range with ARC for varied network densities and traffic loads. ARC improves the packet delivery ratio by a factor of 9 at the maximum for sparse networks while it maintains the increased network capacity for dense networks. Categories and Subject Descriptors D.2.1 [Computer-Communication Networks]: Network Archit...

• Type: Conference
• Year: 2003
• Where: MSWIM
• Authors: Mineo Takai, Junlan Zhou, Rajive Bagrodia
• Keywords: Communication Range, Directional Antenna, Modelling And Simulation, MSWIM 2003, Range Control