KEYWORDS: Telecommunications, Orthogonal frequency division multiplexing, Signal to noise ratio, Doppler effect, Interference (communication), Signal processing, Signal detection, Optical correlators, Sensors, Wireless communications
Multi-carrier technique is usually explored for high-speed communication. Traditionally, CP (cyclic prefix) is used to remove inter-symbol-interference (ISI). However, in this paper, a robust multi-carrier system with low data speed is proposed, with the purpose for anti-jamming. A pseudo-noise (PN) code is used to spread the message bit among sub-carriers. Instead of embedding the long time cyclic prefix (CP), a simple coding over time is used to reduce the error rate due to ISI. The result of simulation has shown that this system performs well.
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