Energy-aware date-centric MAC for application-specific sensor networks

We propose an energy-aware data-centric MAC protocol for application-specific large sensor networks. Referred to as opportunistic type-based medium access (O-TBMA), the proposed protocol adopts the principle of cross-layer design that integrates application layer (detection and estimation) performance measure with physical layer communications, medium access control, and signal processing. Focusing on maximizing energy efficiency and network lifetime, we investigate data-centric medium access strategies and develop opportunistic transmission schemes that incorporate information on sensor channel state and residual energy

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