Incremental multiple error filtered-X LMS for node-specific active noise control over wireless acoustic sensor networks

• Published in: Proceedings of the IEEE Sensor Array and Multichannel Signal Processing Workshop pp. 1 - 5
• Main Authors: Plata-Chaves, Jorge, Bertrand, Alexander, Moonen, Marc
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01.07.2016
• Subjects: active noise control; Distributed algorithms; Distributed node-specific parameter estimation; Estimation; Filtering algorithms; Loudspeakers; Microphones; Signal processing algorithms; Wireless sensor networks
• ISSN: 2151-870X
• DOI: 10.1109/SAM.2016.7569667

We propose an adaptive distributed algorithm to solve a node-specific Active Noise Control (ANC) problem. In this novel ANC problem, the nodes estimate different but overlapping ANC filters in order to generate secondary signals that cancel a primary noise source as it impinges on their microphones. Different sets of nodes follow a cyclic mode of cooperation in order to implement several coupled Multiple Error Filtered-X Least Mean Squares algorithms, each responsible for the estimation of part of the different node-specific ANC filters. The proposed algorithm outperforms the non-cooperative strategies and achieves the same steady-state noise reduction as a centralized solution that processes all the signals in the network. Finally, computer simulations are provided to illustrate the effectiveness of the proposed algorithm.