Research Article
On Jamming Game in Multi-user MIMO Downlink AF Relay System
@INPROCEEDINGS{10.1007/978-3-030-97124-3_8, author={Bai Shi and Kai Cui and Jihong Jiang and Huaizong Shao}, title={On Jamming Game in Multi-user MIMO Downlink AF Relay System}, proceedings={Simulation Tools and Techniques. 13th EAI International Conference, SIMUtools 2021, Virtual Event, November 5-6, 2021, Proceedings}, proceedings_a={SIMUTOOLS}, year={2022}, month={3}, keywords={Urban security Relay MIMO Jamming Sum rate Zero-sum game Stackelberg game}, doi={10.1007/978-3-030-97124-3_8} }- Bai Shi
Kai Cui
Jihong Jiang
Huaizong Shao
Year: 2022
On Jamming Game in Multi-user MIMO Downlink AF Relay System
SIMUTOOLS
Springer
DOI: 10.1007/978-3-030-97124-3_8
Abstract
Wireless devices may threaten urban security if they are maliciously used. Some Internet-of-things (IoT) devices have already troubled the city management even hurt citizens. Jamming technique is one of the effective approaches to prevent these malicious activities. In addition, some IoT devices may locate far from base station and the power of received signals may be low. In this paper, we discuss a jamming power allocation problem in a multi-user multiple-input multiple-output (MU-MIMO) downlink relay system when the communication and jamming signals are relatively low due to the long distance between them, in which jammer tries to minimize the sum rate of IoT devices while these devices try to communicate at the fastest rate. Besides, jammer transmits jamming signals after detecting the communication request of devices so base station should decide how to transmit first, which is modeled by a two-person zero-sum Stackelberg game. However, the sum rate in such a scenario is non-convex. Finding the equilibrium strategy is general N-P hard. To address this complex problem, we decompose it into several easy-solved sub-problems and adopt an alternating optimization over them. Further, we simulate the proposed method numerically and results suggest the superiority.
