Linear Coherent Estimation With Spatial Collaboration

• Published in: IEEE transactions on information theory Vol. 59; no. 6; pp. 3532 - 3553
• Main Authors: Kar, S., Varshney, P. K.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.06.2013; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Applied sciences; Collaboration; Constrained optimization; Correlation analysis; Data transmission; Detection, estimation, filtering, equalization, prediction; distributed estimation; Estimation; Exact sciences and technology; Graph theory; Information theory; Information, signal and communications theory; linear minimum mean square estimation (LMMSE); Mean square errors; Network topology; Noise measurement; Parameter estimation; Sensors; Services and terminals of telecommunications; Signal and communications theory; Signal to noise ratio; Signal, noise; Systems, networks and services of telecommunications; Telecommunications; Telecommunications and information theory; Telemetry. Remote supervision. Telewarning. Remote control; Topology; Transmission and modulation (techniques and equipments); wireless sensor networks; Performance evaluation; wireless sensor networks; Wireless telecommunication; Updating; Remote sensing; Mean square error; Distributed processing; Optimal strategy; Linear estimation; Signal detection; Multiple access; distributed estimation; Multisensor; Measurement sensor; Distributed system; Random graph; Constrained optimization; Electrical network; Wireless network; Numerical simulation; Sensor array; linear minimum mean square estimation (LMMSE); Multiple channel; Least mean squares methods; Signal to noise ratio

A power-constrained sensor network that consists of multiple sensor nodes and a fusion center (FC) is considered, where the goal is to estimate a random parameter of interest. In contrast to the distributed framework, the sensor nodes may be partially connected, where individual nodes can update the...