title: Stochastic channel simulator based on local scattering functions.
abstract: This letter addresses the limitations of the stochastic channel simulation approach employed in wireless channels when directly applied to underwater channels. First it is shown analytically why the simulation method fails when the correlated taps each have a different Doppler spectrum. Then, based on the idea of local scattering functions, we propose a simple solution to the problem of simulating a channel with correlated taps where the correlated taps occur in subgroups with each of the subgroups having a different Doppler spectrum, applicable to underwater channels. Our simulation approach is tested successfully on the KAM08 channel.
authors.affiliation: Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California 92093-0238, USA. yogananda.isukapalli@gmail.com
authors.forename: Y
authors.initials: Y
authors.lastname: Isukapalli
authors.forename: H C
authors.initials: HC
authors.lastname: Song
authors.forename: W S
authors.initials: WS
authors.lastname: Hodgkiss
mesh_terms: D000162:Acoustics / Q000295:instrumentation; D004301:Doppler Effect; D005583:Fourier Analysis; D008962:Models, Theoretical; D009038:Motion; D012542:Scattering, Radiation; D012815:Signal Processing, Computer-Assisted; D013016:Sound; D013018:Sound Spectrography; D013269:Stochastic Processes; D013997:Time Factors; D014867:Water
chemical_list: D014867:Water