Energy-limited wireless networking with directional antennas: the case of session-based multicasting

We consider ad hoc wireless networks that use directional antennas and have limited energy resources. The performance objectives of such networks depend largely on the application. However, a robust performance measure is the total traffic volume that the network can deliver when all nodes are equip...

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Bibliographic Details
Main Authors: Wieselthier, J.E., Nguyen, G.D., Ephremides, A.
Format: Conference Proceeding
Language:English
Subjects:
Antenna measurements
Cost function
Directional antennas
Directive antennas
Energy measurement
Energy resources
Robustness
Telecommunication traffic
Volume measurement
Wireless networks
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Summary:We consider ad hoc wireless networks that use directional antennas and have limited energy resources. The performance objectives of such networks depend largely on the application. However, a robust performance measure is the total traffic volume that the network can deliver when all nodes are equipped with a finite and non-renewable amount of energy. We show that the network's lifetime can be extended significantly by incorporating a simple measure of a node's residual energy into the node's cost function. To explore quantitatively the advantage offered by the use of directional antennas over the case of omnidirectional antennas, we consider the case of connection-oriented multicast traffic. Building upon our prior work on multicasting algorithms, we introduce two protocols that exploit the use of directional antennas and evaluate their performance. We observe significant improvement with respect to the omnidirectional case.
ISSN:0743-166X
2641-9874
DOI:10.1109/INFCOM.2002.1019260