Abstract

This paper describes the engineering of replica voting protocols for energy-efficiency in data delivery. The protocols employ 2-phase voting among replica processes to move a correct data from the external environment to the end-user(s) in a secure real-time application setting. The replicas may be wireless computation nodes deployed in a power-constrained environment. The cross-layer optimization techniques is employed to reduce the amount of network message exchanges and device processing cycles expended for data delivery to the user. This optimization can in turn reduce the battery energy consumption of wireless devices that participate in the voting protocol. Cross-layer design of a replica-based voting protocol is considered for deployment over IEEE- 802.11 networks. Furthermore, though the paper focused on replica voting as the application, the optimization techniques are useful in other application domains.

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