Mobility

Distributed Joint Source- Channel Coding for Functions Over a Multiple Access Channel

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Executive Summary

Sensor networks are used in a wide variety of applications due to their ability to operate in environments where human penetration is not possible. One killer application of such networks is environmental monitoring. Correlated sources are a common scenario in densely packed sensor networks. In this paper, the authors provide sufficient conditions for lossy transmission of functions of correlated data over a Multiple Access Channel (MAC). The conditions obtained can be shown as generalized version of Yamamoto's result. They also obtain efficient joint source-channel coding schemes for transmission of discrete and continuous alphabet sources to recover the function values.

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