An anti-jamming improvement strategy for satellite frequency-hopping communication

Satellite frequency-hopping (FH) communication for anti-jamming was studied. Effects of jamming on frames that belongs to the link layer were analyzed. A measurement, link frame throughput was proposed. In addition, a time-frequency diversity strategy was suggested to improve anti-jamming performance of the system on the measurement of link frame throughput. For comparison, another strategy, deep interleaving strategy processed on the physical layer was also analyzed. Results of numerical analyses and simulations show that the throughput performance of the time-frequency diversity strategy is better than that of the deep interleaving strategy. For example, when jam rate is 0.06, the improvement of the throughput performance of the diversity strategy is about 5%. The advantages of the strategy are lower complexity and shorter delay. It could be used to provide further protection from jamming.