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http://dx.doi.org/10.12815/kits.2018.17.5.135

Performance Analysis of CDMA and OFDM on Underwater Acoustic Environments  

Lee, Ho Jun (Dept. of Electornics Eng., Univ. of Inha)
Chung, Jaehak (Dept. of Electornics Eng., Univ. of Inha)
Publication Information
The Journal of The Korea Institute of Intelligent Transport Systems / v.17, no.5, 2018 , pp. 135-142 More about this Journal
Abstract
This paper compares and analyzes advantages and disadvantages of CDMA(code division multiple access) and OFDM(orthogonal frequency division multiplexing) transmission techniques for underwater acoustic channel environments. Computer simulations were carried out in various underwater acoustic channels with varying r.m.s.(root mean square) delay, doppler frequency and the number of multipaths. When r.m.s. delay and doppler frequency are within the tolerance of designed transmission schemes, the computer simulations show that CDMA has better BER performance than that of the OFDM. However, when the doppler frequency exceeds the tolerance, BER performance of the CDMA decreases.
Keywords
UWA communication; UWA channel; CDMA; OFDM;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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