无线网络抗干扰攻击的自适应无速率通信

针对干扰攻击干扰信号解码、降低通信性能的问题,提出一种具备抗干扰攻击能力的自适应无速率通信机制。它将原始报文拆分为多个编码分片并分别传输,从而降低干扰攻击的影响并充分利用非连续的可用间隙。通过自适应调整分片的长度,在干扰攻击频繁时减少长度以获得更好的鲁棒性,在攻击概率较低时增大长度以提高效率。实验结果表明,当干扰攻击严重时,与直接通信相比,新机制的吞吐量平均提高50%以上,稳定性提高一个数量级。因此,自适应无速率通信可有效抵御干扰攻击并获得较高的通信效率。

Anti-jamming attack communication by adaptive rateless codes in wireless networks

As jamming attack can interrupt signal decoding and severely reduce communication performance, an adaptive rateless communication mechanism is proposed to reduce the interference effect of jamming attack.With the help of rateless codes, a packet is split into multiple encoded micro packets and then transmitted independently,which can reduce the impact of interference and take advantage of the non contiguous available channel. By adaptively adjusting the length of the micro packet,better robustness can be achieved by using a smaller length when the attacks occur frequently.Meanwhile, high efficiency can be obtained by increasing the micro packet length when attacks occur rarely.Experimental results show that, in comparison with direct transmission,rateless transmission can improve the throughput by 50% on average,and the stability by an order of magnitude.In summary, rateless communication can effectively resist jamming attacks and achieve high communication efficiency.