Title :
Power controlled dual channel (PCDC) medium access protocol for wireless ad hoc networks
Author :
Muqattash, Alaa ; Krunz, Marwan
Author_Institution :
Dept. of Electr. & Comput. Eng., Arizona Univ., Tucson, AZ, USA
Abstract :
In this paper, we propose a comprehensive solution for power control in mobile ad hoc networks (MANETs). Our solution emphasizes the interplay between the MAC and network layers, whereby the MAC layer indirectly influences the selection of the next-hop by properly adjusting the power of route request packets. This is done while maintaining network connectivity. Directional and channel-gain information obtained mainly from overheard RTS and CTS packets is used to dynamically construct the network topology. By properly estimating the required transmission power for data packets, our protocol allows for interference-limited simultaneous transmissions to take place in the neighborhood of a receiving node. Simulation results indicate that compared to the IEEE 802.11 approach, the proposed protocol achieves a significant increase in the channel utilization and end-to-end network throughput, and a significant decrease in the total energy consumption.
Keywords :
access protocols; ad hoc networks; channel allocation; mobile radio; network topology; power control; telecommunication control; telecommunication network routing; IEEE 802.11; MAC layer; channel utilization; channel-gain information; clear-to-send packets; data packets transmission power; directional information; dual channel medium access protocol; end-to-end network throughput; interference-limited simultaneous transmissions; mobile ad hoc networks; network connectivity; network layers; network topology; power control; request-to-send packets; route request packets; Access protocols; Ad hoc networks; Energy consumption; Interference; Mobile ad hoc networks; Network topology; Power control; Routing; Spread spectrum communication; Throughput;
Conference_Titel :
INFOCOM 2003. Twenty-Second Annual Joint Conference of the IEEE Computer and Communications. IEEE Societies
Print_ISBN :
0-7803-7752-4
DOI :
10.1109/INFCOM.2003.1208698