Abstract
Dynamics of multipath fading have a major effect on the performance of mobile wireless communication systems. The inherently time-varying nature of the mobile wireless channel makes nonstationary signal processing techniques particularly attractive for system design. Time-frequency representations are powerful tools for time-varying signal processing, and in this paper, we present a time-frequency view of wireless communication over multipath channels. Our discussion is anchored on a fundamental finite-dimensional time-frequency representation of the wireless channel that facilitates diversity signaling by exploiting multipath and Doppler shifts. The substantially higher level of diversity afforded by time-frequency processing over conventional techniques translates into significant gains in virtually all aspects of system performance. We illustrate the utility of the time-frequency framework via novel signaling and receiver structures, and multiuser acquisition and interference-suppression algorithms.
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Sayeed, A.M., Aazhang, B. (1997). Communication over Multipath Fading Channels: A Time-Frequency Perspective. In: Wireless Communications. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-2604-6_4
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DOI: https://doi.org/10.1007/978-1-4757-2604-6_4
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4419-5017-8
Online ISBN: 978-1-4757-2604-6
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