Stochastic channel simulator based on local scattering functions | Zendy

Yogananda Isukapalli | Zendy; H. C. Song | Zendy; William S. Hodgkiss | Zendy

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Stochastic channel simulator based on local scattering functions

Author(s) -

Yogananda Isukapalli,

H. C. Song,

William S. Hodgkiss

Publication year - 2011

Publication title -

the journal of the acoustical society of america

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.619

H-Index - 187

eISSN - 1520-8524

pISSN - 0001-4966

DOI - 10.1121/1.3633688

Subject(s) - channel (broadcasting) , underwater , computer science , doppler effect , simple (philosophy) , scattering , simulation , wireless , acoustics , statistical physics , algorithm , telecommunications , physics , optics , geology , philosophy , oceanography , epistemology , astronomy

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.

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