arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2003.06884cs.NI
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战术无线网络中的协作频谱感知

Collaborative Spectrum Sensing in Tactical Wireless Networks

Bryan Gingras, Ali Pourranjbar, Georges Kaddoum

摘要:

在本文中,我们提出了一种算法的信道检测,协作和传输的战术通信系统的网络,面临着来自敌对干扰机的入侵。网络的成员首先扫描频谱中的干扰源,与相邻节点共享此信息,并将其各自的观测数据集合并到包含每个信道的置信占用率的决策向量中。然后,用户可以使用该向量来找到用于其传输的空闲信道。我们引入了节点共享这些向量与他们的同行,谁然后将它们合并成超级决策向量,让每个节点更好地识别和选择传输信道的概念。我们考虑衰落的情况下,大大限制了用户的观察的可靠性,除非他们合作,以增加他们的传感数据的可信度。我们提出了一种伪随机信道选择算法,该算法在感测可靠性与被感测的信道数量之间取得了平衡。仿真结果表明,所提出的系统提高了网络的频谱和无干扰传输的速率的整体知识,同时限制增加的计算复杂性的网络节点,尽管干扰的不可预测的性质。

英文摘要:

In this paper, we propose an algorithm for channel sensing, collaboration, and transmission for networks of Tactical Communication Systems that are facing intrusions from hostile Jammers. Members of the network begin by scanning the spectrum for Jammers, sharing this information with neighboring nodes, and merging their respective sets of observation data into a decision vector containing the believed occupancy of each channel. A user can then use this vector to find a vacant channel for its transmission. We introduce the concept of nodes sharing these vectors with their peers, who then merge them into super-decision vectors, allowing each node to better identify and select transmission channels. We consider fading scenarios that substantially limit the reliability of the users' observations, unless they cooperate to increase the trustworthiness of their sensing data. We propose a pseudo-random channel selection algorithm that strikes a balance between sensing reliability with the number of channels being sensed. Simulation results show that the proposed system improves the network's overall knowledge of the spectrum and the rate of Jammer-free transmissions while limiting added computational complexity to the nodes of the network, despite the Jammers' unpredictable nature.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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