NDLI: SINR analysis of OFDM systems using a geometry-based underwater acoustic channel model

Content Provider	IEEE Xplore Digital Library
Author	Do Viet Ha Nguyen Van Duc Patzold, M.
Copyright Year	2015
Description	Author affiliation: Sch. of Electr. & Commun., Hanoi Univ. of Sci. & Technol., HaNoi, Vietnam (Do Viet Ha; Nguyen Van Duc) \|\| Fac. of Eng. & Sci., Univ. of Agder, Grimstad, Norway (Patzold, M.)
Abstract	The Doppler effect is caused by the relative movement between the transmitter (Tx) and the receiver (Rx) and/or the surface motion (waves) in underwater acoustic (UWA) communication systems. The inter-channel interference (ICI) caused by the Doppler effect degrades the performance of orthogonal frequency-division multiplexing (OFDM) systems over UWA channels. This paper is devoted to the ICI plus noise analysis of UWA-OFDM systems over a geometry-based channel model for shallow UWA channels. We carry out the exact calculation of the ICI power, ambient noise power, and required transmit power, as well as their effects on the performance of UWA-OFDM systems. The signal-to-interference ratio (SIR) and the signal-to-interference-plus-noise ratio (SINR) performance are analyzed for different relative speeds of the Tx and Rx, signal bandwidths, and carrier frequencies. The results show that the SIR not only depends on the maximum Doppler frequency but also on the signal bandwidth and the transmit power. The ICI power increases if the maximum Doppler frequency or the transmit power increases. If the bandwidth increases, the ICI power decreases, whereas the ambient noise power increases. Based on the simulation results, the system parameters can be optimized for the design of UWA-OFDM systems.
Starting Page	683
Ending Page	687
File Size	197518
Page Count	5
File Format	PDF
e-ISBN	9781467367820
DOI	10.1109/PIMRC.2015.7343385
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-08-30
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Interference OFDM Signal to noise ratio Doppler effect Channel models Bandwidth Receivers underwater acoustic channel Ambient noise channel modeling Doppler shift ICI power SINR
Content Type	Text
Resource Type	Article

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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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