Distributed optimal quantization and power allocation for sensor detection via consensus

Nurellari, Edmond and McLernon, Des and Ghogho, Mounir and Zaidi, Syed Ali Raza (2015) Distributed optimal quantization and power allocation for sensor detection via consensus. In: Vehicular Technology Conference (VTC Spring), 2015 IEEE 81st, 11-14 May 2015, Glasgow, UK.

Full content URL: http://dx.doi.org/10.1109/VTCSpring.2015.7145785

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Abstract

We address the optimal transmit power allocation problem (from the sensor nodes (SNs) to the fusion center (FC)) for the decentralized detection of an unknown deterministic spatially uncorrelated signal which is being observed by a distributed wireless sensor network. We propose a novel fully distributed algorithm, in order to calculate the optimal transmit power allocation for each sensor node (SN) and the optimal number of quantization bits for the test statistic in order to match the channel capacity. The SNs send their quantized information over orthogonal uncorrelated channels to the FC which linearly combines them and makes a final decision. What makes this scheme attractive is that the SNs share with their neighbours just their individual transmit powers at the current states. As a result, the SN processing complexity is further reduced.

Keywords:Distributed detection, distributed processing, soft decision, wireless sensor networks
Subjects:H Engineering > H641 Telecommunications Engineering
H Engineering > H600 Electronic and Electrical Engineering
H Engineering > H640 Communications Engineering
Divisions:College of Science > School of Engineering
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ID Code:27388
Deposited On:03 Jun 2017 11:38

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