An Anti-jamming Underwater Communication Transceiver model using Uncoordinated Direct Sequence Spread Spectrum Technique

Unlike broadcast communication and other wireless communication, jamming resistant communication is also most crucial for the safety of a signal in underwater. So in this paper an uncoordinated direct sequence spread spectrum technique which can handle an unlimited amount of receivers have been used for anti-jamming multi-channel Underwater Communication (UWC). For performance analysis of the proposed system, a circuit simulation model was made to calculate Bit Error Rate (BER) by considering multipath fading, jamming signal, Doppler spread and Additive White Gaussian Noise (AWGN) etc. and are compared with the analytical results, experimental results and previous works. From the results it is seen that BER vs. JSR shows less BER than that of the previous work and that the values of BER within the SNR range of 5dB-19dB will be 1x10(-1)similar to 2x10(-5) for BPSK which is also found to be less than that of the previous work.