Title
Analyzing rate-constrained beamforming schemes in wireless binaural hearing aids
Abstract
A binaural hearing aid set-up where the left and right ear devices are connected by a rate-constrained wireless link is considered, and the performance gain resulting from beamforming is quantified. Each device is assumed to have two or more microphones. The transmitting device sends a signal at a rate R to the receiving device where it is combined with the locally available signals to obtain a minimum mean-squared error estimate of the desired signal. Different practically realizable choices for the signal to be transmitted are considered: an estimate of the desired signal, an estimate of the interfering signal (relevant for multi-microphone interference cancellation), and the unprocessed signal. It is not obvious which scheme provides the best rate-gain trade-off. In fact, it is shown that this varies depending on the configuration of the desired and interfering sources. This paper provides a framework to quantify and thus compare the performance of the above-mentioned schemes in terms of the rate R and the resulting beamforming gain.
Year
Venue
Keywords
2009
Glasgow
ear,hearing,hearing aids,mean square error methods,medical signal processing,telemedicine,left ear devices,minimum mean-squared error estimate,multimicrophone interference cancellation,rate-constrained beamforming schemes,rate-constrained wireless link,right ear devices,signal transmission,wireless binaural hearing aids,signal to noise ratio,wireless communication,gain
Field
DocType
ISBN
Beamforming,Binaural hearing aids,Wireless,Computer science,Signal-to-noise ratio,Single antenna interference cancellation,Auditory system,Sound localization,Acoustics
Conference
978-161-7388-76-7
Citations 
PageRank 
References 
0
0.34
3
Authors
2
Name
Order
Citations
PageRank
Sriram Srinivasan137927.92
Albertus C. den Brinker27310.77