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http://dx.doi.org/10.7776/ASK.2010.29.6.365

Coherence Bandwidth and Coherence Time for the Communication Frame in the Underwater of East Sea  

Choi, Dong-Hyun (인하대학교 전자공학부)
Kim, Hyeon-Su (인하대학교 전자공학부)
Kim, Nam-Ri (인하대학교 전자공학부)
Kim, Seong-Il (국방과학연구소)
Chung, Jae-Hak (인하대학교 전자공학부)
Publication Information
The Journal of the Acoustical Society of Korea / v.29, no.6, 2010 , pp. 365-373 More about this Journal
Abstract
For effective underwater digital communications, a frame structure is used, which includes pilots in time and frequency domains for channel estimation at a receiver. To estimate channel precisely, the each pilot should be located less than coherence time and coherence bandwidth. This paper measured underwater communication environments to provide coherence time and coherence bandwidth. Based on the measurement, the paper exhibits the calculated coherence time and coherent bandwidth is adequate by computer simulations.
Keywords
Underwater Acoustic Communication; Coherence Bandwidth; Coherence Time; Transmission Pilots;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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