Cross-Layer Design for Energy-Efficient Secure Multicast Communications in Ad Hoc Networks
WASHINGTON UNIV SEATTLE DEPT OF ELECTRICAL ENGINEERING
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The authors consider the problem of secure multicast in an energy-constrained wireless environment. They present an analytical formulation of the energy expenditure associated with the communication overhead of key management, and highlight its dependence on network topology and key distribution method. They show that the optimal solution of this formulation does not scale with multicast group size and propose a sub-optimal, cross-layer, low-complexity algorithm for energy-efficient key distribution. Simulation studies are presented to show the energy savings achieved by their scheme, and its performance is compared when different routing algorithms are employed i.e., Broadcast Incremental Power BIP, the Embedded Wireless Multicast Advantage EWMA, the Minimum Spanning Tree MST, and Shortest Path Routing SPR.
- Non-electrical Energy Conversion
- Computer Systems
- Computer Systems Management and Standards
- Radio Communications