Parras Juan, Zazo Santiago
Information Processing and Telecommunications Center, Universidad Politécnica de Madrid, ETSI Telecomunicación, Av. Complutense 30, 28040 Madrid, Spain.
Sensors (Basel). 2018 Jan 30;18(2):404. doi: 10.3390/s18020404.
We study a wireless sensor network using CSMA/CA in the MAC layer under a backoff attack: some of the sensors of the network are malicious and deviate from the defined contention mechanism. We use Bianchi's network model to study the impact of the malicious sensors on the total network throughput, showing that it causes the throughput to be unfairly distributed among sensors. We model this conflict using game theory tools, where each sensor is a player. We obtain analytical solutions and propose an algorithm, based on Regret Matching, to learn the equilibrium of the game with an arbitrary number of players. Our approach is validated via simulations, showing that our theoretical predictions adjust to reality.
我们研究了在MAC层使用CSMA/CA的无线传感器网络遭受退避攻击的情况：网络中的一些传感器是恶意的，偏离了定义的竞争机制。我们使用比安基网络模型来研究恶意传感器对网络总吞吐量的影响，结果表明它会导致吞吐量在传感器之间不公平地分配。我们使用博弈论工具对这种冲突进行建模，其中每个传感器都是一个参与者。我们获得了分析解，并提出了一种基于遗憾匹配的算法，以学习具有任意数量参与者的博弈的均衡。我们的方法通过仿真得到了验证，表明我们的理论预测与实际情况相符。
