Results 271 to 280 of about 180,161 (298)

(T, ∊)-Greedy Reinforcement Learning for Anti-Jamming Wireless Communications

GLOBECOM 2020 - 2020 IEEE Global Communications Conference, 2020
In this article, we propose a(τ, ϵ)-greedy reinforcement learning algorithm for anti-jamming wireless communications, which chooses previous action with probability τ and applies ϵ-greedy with probability 1–τ. The key idea of our algorithm is that the more valuable the previous action is, the higher probability of directly performing it at the current ...
Jin Li, Yuan-Gen Wang, Liang Xiao, Pei-Gen Ye, Guopu Zhu   +4 more
openaire   +2 more sources

Power and Frequency Selection optimization in Anti-Jamming Communication: A Deep Reinforcement Learning Approach

International Conference on Innovative Computing and Cloud Computing, 2019
This paper studies the problem of anti-jamming in selecting communication frequency and power by using deep reinforcement learning (DRL) algorithm. In existing works, the anti-jamming methods are considered in frequency domain or power domain only.
Yangyang Li, Yitao Xu, Ximing Wang, Wen Li, Wei Bai   +4 more
semanticscholar   +1 more source

Randomized positioning DSSS for anti-jamming wireless communications

2016 International Conference on Computing, Networking and Communications (ICNC), 2016
Traditional anti-jamming approaches like Frequency Hopping Spread Spectrum (FHSS) and Direct Sequence Spread Spectrum (DSSS) require the sender and the receiver to share a secret key prior to their communication. If this key is compromised by the jammer, the jammer can then generate the frequency hopping patterns or the spreading codes used by the ...
Meshari Alotaibi, Ahmad Alagil, Yao Liu
openaire   +2 more sources

QPSO-Based Beamforming in Dual RIS-Assisted Uplink Anti-Jamming Communication System

International Conference on Advanced Communication Technology
Considering a dual reconfigurable intelligent surface (RIS) assisted uplink cellular communication system under a malicious jamming user with known positions, we propose a joint active and passive anti-jamming beamforming scheme to maximize the system ...
Di Zhou, Zhiquan Bai, Jinqiu Zhao, Zeyu Liu, Dejie Ma, Kyungsup Kwak   +5 more
semanticscholar   +1 more source

Joint Power and Trajectory Optimization in UAV Anti-Jamming Communication Networks

ICC 2019 - 2019 IEEE International Conference on Communications (ICC), 2019
This paper mainly investigates the unmanned aerial vehicle (UAV) communication networks under the threat of a static malicious jammer. While taking the flying process of the user (UAV transmitter-receiver pair) into consideration, we propose a joint ...
Yifan Xu, Guochun Ren, Jin Chen, Xiaobo Zhang, Luliang Jia, Zhibin Feng, Yuhua Xu   +6 more
semanticscholar   +1 more source

Decision method of anti-jamming communication based on binary artificial bee colony algorithm

International Conference on Computer Science and Network Technology, 2015
To realize the autonomous adjustment function of the system parameters of the anti-jamming decision engine, a kind of swarm intelligence optimization algorithm- binary artificial bee colony (BABC) algorithm was used for reference.
Xianyang Hui, Yingtao Niu, Mi Yang
semanticscholar   +1 more source

Lightweight EHF satellites for augmentation of anti-jam communications

14th International Communication Satellite Systems Conference and Exhibit, 1992
In an evolutionary EHF anti-jam military satellite communications system, the fundamental service provided by a backbone space segment can be significantly augmented through the use of lightweight EHF satellites or secondary payloads. The use of small EHF satellites to provide this augmentation provides a great deal of flexibility in the deployment and
William C. Cummings, Dean P. Kolba, David R. Mvelroy   +2 more
openaire   +2 more sources

Anti-jamming communication in cognitive radio networks with unknown channel statistics

IEEE International Conference on Network Protocols, 2011
Recently, many opportunistic spectrum sensing and access protocols have been proposed for cognitive radio networks (CRNs). For achieving optimized spectrum usage, existing solutions model the spectrum sensing and access problem as a partially observed ...
Qian Wang, K. Ren, P. Ning
semanticscholar   +1 more source

Demo abstract: An anti-jamming wireless communication system

IEEE INFOCOM 2018 - IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS), 2018
This demonstration presents a real-time anti-jamming MIMO-OFDM wireless communication system that consists of a transmitter, a receiver, and a high-power wideband radio jammer. The key component of our system is a new PHY design for the receiver, which can mitigate jamming signal and recover the desired signal.
openaire   +2 more sources

On the performance of cognitive anti-jamming communication system based on improved energy detection

International Conference on Critical Infrastructure Protection, 2016
In order to enhance the anti-jamming capability of simultaneous transmit and receive based cognitive anti-jamming (SCAJ) communication system in the complex electromagnetic environment, an improved spectrum sensing scheme based on energy detection (IED ...
Jiayu Li, Haitao Li
semanticscholar   +1 more source