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This paper considers the problem of achieving binary consensus among a set of nodes using physical layer communication over noisy wireless links. Starting with initial binary values, the nodes exchange messages over i.i.d. fading channels, detect the majority bit across the sensors, and update their majority bit estimates, over multiple cycles. The bits are updated using either an LMMSE-based scheme...
It has long been known that adaptive beamforming has the potential to enhance the performance of wireless ad hoc networks significantly. However, due to the decentralized nature of such infrastructure-less networks, it is not straight forward to fully realize the potential performance gains of beamforming in a realistic manner. To this end we devise a fully distributed cross-layer concept, comprising...
We present a cross-layer framework for optimizing the performance of wireless networks as measured by applications or upper layer protocols. The approach combines adaptive modulation with network utility maximization. We extend the approach to find optimal source rates and transmitter power and rate policies without explicit knowledge of the distribution of channel states. These optimal power and...
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