Conference proceeding
Tracking the underwater acoustic channel using two-dimensional frequency sampling
2015 IEEE Underwater Technology (UT), pp.1-5
02/2015
DOI: 10.1109/UT.2015.7108275
Abstract
Rapidly fluctuating multipath arrivals along with unpredictable surface wave focusing events render the shallow water acoustic channel difficult to track using sparse or least-squared error (LSE) optimization techniques. This fundamental bottleneck is primarily due to the time-varying nature of the underlying distribution. In this work, we propose a complementary channel tracking technique that exploits the dual representation of the acoustic channel in the Fourier domain and employs two-dimensional frequency sampling using an application-inspired input dictionary. Specifically, we reformulate the time-varying channel tracking problem on a MIMO framework and design training symbols that sample the channel in its dual Fourier domain. Ground truths based on experimental field data are presented.
Details
- Title: Subtitle
- Tracking the underwater acoustic channel using two-dimensional frequency sampling
- Creators
- Ananya Sen Gupta - University of IowaNaushad Ansari - Indraprastha Institute of Information TechnologyAnubha Gupta - Indraprastha Institute of Information Technology
- Resource Type
- Conference proceeding
- Publication Details
- 2015 IEEE Underwater Technology (UT), pp.1-5
- DOI
- 10.1109/UT.2015.7108275
- Publisher
- IEEE
- Language
- English
- Date published
- 02/2015
- Academic Unit
- Electrical and Computer Engineering
- Record Identifier
- 9984197221002771
Metrics
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