Paper Info
Title
Power allocation for distributed estimation in sensor networks with semi-orthogonal MAC
Abstract
This paper is concerned with distributed estimation in a Gaussian sensor network under the semi-orthogonal multiple access channel (MAC). Under the total transmit power constraint, an improved power allocation scheme among sensors is investigated. In the semi-orthogonal MAC, since sensors are divided into groups, the issue of power allocation can be separated into two tasks: power allocation within each sensor group and power allocation among sensor groups. In this paper, both tasks are studied and solutions are provided. Simulation results show that the improved power allocation can provide much better average mean squared error (MSE) performance than equal power allocation, especially at low channel signal-to-noise ratio.
Year
DOI
Venue
2015
10.1109/CWIT.2015.7255174
2015 IEEE 14th Canadian Workshop on Information Theory (CWIT)
Keywords
Field
DocType
power allocation,distributed estimation,sensor networks,MAC,Gaussian sensor network,semi-orthogonal multiple access channel,mean squared error,signal-to-noise ratio
Key distribution in wireless sensor networks,Transmitter power output,Computer science,Signal-to-noise ratio,Communication channel,Mean squared error,Electronic engineering,Gaussian,Mobile wireless sensor network,Wireless sensor network
Conference
Citations 
PageRank 
References 
0
0.34
7
Authors
3
Name
Order
Citations
PageRank
Jian Su1101.86
Ha H. Nguyen297696.55
Hoang D. Tuan31936191.03