NDLI: UWB-FSK: performance tradeoffs for high and low complexity receivers

Content Provider	IEEE Xplore Digital Library
Author	Ramírez-Mireles, F. Cooklev, T. Paredes-Orozco, G.A.
Copyright Year	1975
Abstract	In this work we explore flexible modulations to allow demodulation using receivers with different complexity and cost. More specifically, we study pulse-based ultra wideband (UWB) communications over channels with dense multipath effects using frequency shift keying (FSK) data modulation. Our aim is to explore the performance tradeoffs between high and low complexity receivers. For this purpose we determine the performance of coherent, non-coherent and mismatched (e.g., non-coherent detection using templates consisting of a single path) demodulators. We take into account the influence of the frequency response of the antenna system and the effects of the frequency selectivity of the multipath channel. Given a specific channel condition, we derive expressions for the bit error rate for coherent, noncoherent and mismatched reception of correlated FSK signals with unequal energies, and calculate the signal-to-noise ratio (SNR) degradation for different receiver's complexities with a given FSK frequency deviation We show that UWB-FSK has a SNR degradation similar to other low-complexity receivers studied in the literature.
Sponsorship	IEEE Consumer Electronics Society
File Size	175503
File Format	PDF
ISSN	00983063
Volume Number	56
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-11-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Frequency shift keying Bit error rate Receivers Complexity theory Correlation Transmitters Antennas UWB, FSK, multipath channels .
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Media Technology

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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