Optimized Transmission for Parameter Estimation in Wireless Sensor Networks

You are here

Top Reasons to Join SPS Today!

1. IEEE Signal Processing Magazine
2. Signal Processing Digital Library*
3. Inside Signal Processing Newsletter
4. SPS Resource Center
5. Career advancement & recognition
6. Discounts on conferences and publications
7. Professional networking
8. Communities for students, young professionals, and women
9. Volunteer opportunities
10. Coming soon! PDH/CEU credits
Click here to learn more.

Optimized Transmission for Parameter Estimation in Wireless Sensor Networks

By: 
Shahin Khobahi; Mojtaba Soltanalian; Feng Jiang; A. Lee Swindlehurst

A central problem in analog wireless sensor networks is to design the gain or phase-shifts of the sensor nodes (i.e. the relaying configuration) in order to achieve an accurate estimation of some parameter of interest at a fusion center, or more generally, at each node by employing a distributed parameter estimation scheme. In this paper, by using an over-parametrization of the original design problem, we devise a cyclic optimization approach that can handle tuning both gains and phase-shifts of the sensor nodes, even in intricate scenarios involving sensor selection or discrete phase-shifts. Each iteration of the proposed design framework consists of a combination of the Gram-Schmidt process and power method-like iterations, and as a result, enjoys a low computational cost. Along with formulating the design problem for a fusion center, we further present a consensus-based framework for decentralized estimation of deterministic parameters in a distributed network, which results in a similar sensor gain design problem. The numerical results confirm the computational advantage of the suggested approach in comparison with the state-of-the-art methods—an advantage that becomes more pronounced when the sensor network grows large.

SPS on Twitter

  • NEW SPS WEBINAR: On Tuesday, 13 December, join Dr. Qian Huang for "Deep Learning for All-in-Focus Imaging" - regist… https://t.co/4AVCabulyP
  • Join the SPS Membership Drive on Monday, 12 December, when SPS members, potential members, and the greater signal p… https://t.co/gtbisawJIK
  • The fundraising deadline to meet our 30 unique donations of US$10 or more is tonight — increase your impact for sig… https://t.co/KTzzCKnEMO
  • Happy ! Celebrate this global day of generosity and community action with the IEEE Foundation and… https://t.co/UvaytMFnQ1
  • The SPS Biomedical Imaging and Signal Processing Technical Committee Webinar Series continues on Tuesday, 6 Decembe… https://t.co/SYEEzoxIAK

SPS Videos


Signal Processing in Home Assistants

 


Multimedia Forensics


Careers in Signal Processing             

 


Under the Radar