Performance of coded-sequence self-encoded spread spectrum under pulsed-noise jamming

In recent work, we proposed coded-sequence self-encoded spread spectrum (CS-SESS) as an extension to self-encoded spread spectrum (SESS) by increasing the modulation memory without a spreading bandwidth expansion. In this paper, we study the performance of CS-SESS under pulsed noise jamming and show that iterative detection can improve the bit-error rate (BER) performance significantly. The time diversity detection of CS-SESS can completely mitigate the effect of jamming by taking advantage of the inherent temporal diversity. Furthermore, iterative detection with multiple iterations is also developed to combine the correlation and time diversity detections effectively. Simulation results demonstrate that multiple iterations can not only eliminate the jamming completely but also achieve the additional coding gain of around 3.5 dB at 10^-3 BER when compared to BPSK system under AWGN.