Energy Saving and Connectivity Tradeoff by Adaptative Transmission Range in 802.11g MANETs

Power conservation is a crucial problem in mobile ad hoc wireless networks knowing that, each mobile node has a limited amount of energy concentrated in a battery. The main objective of our paper is to use a variable transmission range in order to save some energy and to keep the connectivity of the network. Our algorithm is implemented at the data link layer of the OSI model and thus can be used by all MANET routing algorithms such as AOVD and DYMO. Simulation experiments were conducted to evaluate the performance of our algorithm in terms of energy used and connectivity. We show that our algorithm has an energy gain between 35% to 85% at reasonable speeds below 20 m/s and a high enough network density.

[1]  Vikas Kawadia,et al.  Power control and clustering in ad hoc networks , 2003, IEEE INFOCOM 2003. Twenty-second Annual Joint Conference of the IEEE Computer and Communications Societies (IEEE Cat. No.03CH37428).

[2]  Srikanth V. Krishnamurthy,et al.  Power management for throughput enhancement in wireless ad-hoc networks , 2000, 2000 IEEE International Conference on Communications. ICC 2000. Global Convergence Through Communications. Conference Record.

[3]  Cauligi S. Raghavendra,et al.  Energy efficient communications in ad hoc networks using directional antennas , 2002, Proceedings.Twenty-First Annual Joint Conference of the IEEE Computer and Communications Societies.

[4]  P. R. Kumar,et al.  Power Control in Ad-Hoc Networks: Theory, Architecture, Algorithm and Implementation of the COMPOW Protocol , 2002 .

[5]  Tracy Camp,et al.  Stationary distributions for the random waypoint mobility model , 2004, IEEE Transactions on Mobile Computing.

[6]  Somprakash Bandyopadhyay,et al.  A Power-Efficient MAC Protocol with Two-Level Transmit Power Control in Ad Hoc Network Using Directional Antenna , 2003, IWDC.

[7]  Sung-Ju Lee,et al.  Transmission power control in wireless ad hoc networks: challenges, solutions and open issues , 2004, IEEE Network.

[8]  Paolo Santi.  The critical transmitting range for connectivity in mobile ad hoc networks , 2005, IEEE Transactions on Mobile Computing.

[9]  Nitin H. Vaidya,et al.  A Power Control MAC Protocol for Ad Hoc Networks , 2002, MobiCom '02.

[10]  Jie Wu,et al.  Computation of Minimal Uniform Transmission Range in Ad Hoc Wireless Networks , 2005, Cluster Computing.

[11]  Julio Solano-González,et al.  Finding minimum transmission radii for preserving connectivity and constructing minimal spanning trees in ad hoc and sensor networks , 2005, J. Parallel Distributed Comput..

[12]  Ernst Althaus,et al.  Power efficient range assignment in ad-hoc wireless networks , 2003, 2003 IEEE Wireless Communications and Networking, 2003. WCNC 2003..