Title :
Simulation studies of underwater communication system in shallow oceanic channel
Author :
Chatha, H.S. ; Kumar, Arun ; Bahl, Rajendar
Author_Institution :
Centre for Appl. Res. in Electron., Indian Inst. of Technol., New Delhi, India
Abstract :
Underwater acoustic communications presents unique challenges that are being overcome with advances in signal processing algorithms and related hardware technologies. The accurate simulation and performance comparison of various algorithms is essential for building an optimized and robust communications system. We report results of a detailed simulation study of an underwater acoustic communications system using phase coherent modulation scheme. The aim of this study is to bring out the relative contributions of error control coding using Turbo codes and low probability of intercept features towards SNR gain and achieving the desired bit error rates for realistic environment scenarios. We also comment on the training sequence length requirement for linear and decision feedback equalization for LPI and nonLPI systems.
Keywords :
oceanographic techniques; sonar signal processing; underwater acoustic communication; underwater sound; underwater vehicles; LPI system; SNR gain; Turbo code; algorithm simulation; bit error rate; decision feedback equalization; error control coding; hardware technology; linear equalization; low probability of intercept feature; nonLPI system; optimized communication; performance comparison; phase coherent modulation scheme; realistic environment scenario; robust communication; shallow oceanic channel; signal processing algorithm; training sequence length; underwater acoustic communication system; Bit error rate; Error correction; Hardware; Marine technology; Phase modulation; Robustness; Signal processing algorithms; Turbo codes; Underwater acoustics; Underwater communication;
Conference_Titel :
OCEANS '02 MTS/IEEE
Print_ISBN :
0-7803-7534-3
DOI :
10.1109/OCEANS.2002.1192003
