Monte Carlo Reinforcement Learning for Cooperative Spectrum Sensing in Decision Fusion

Qingying Wu, Benjamin K. Ng, Han Zhu, Chan Tong Lam

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

As one of the key enablers, the Wireless Sensor Network (WSN) plays an important role in wide application scenarios of the Internet of Things (IoT). However, the rapid spread of wireless applications contributed to the extreme crowd in the radio spectrum. Cognitive Radio Sensor Network (CRSN) emerges as a promising solution to the problem of spectrum scarcity considering the heterogeneous properties of both the Primary User (PU) and Secondary User (SU). In a multi-stage Cooperative Spectrum Sensing (CSS) system with a fusion center, hard fusion rules are widely used to fusion local decisions due to their simplicity. In this way, the sensing performance is closely related to the underlying parameters of the system but is hard to adjust when the fusion policy is fixed. This paper investigates the application of Monte Carlo Reinforcement Learning (MCRL) algorithms for CSS. Specifically, after replacing the traditional FC with a soft-created Agent, the policy for the fusion on local decisions can be improved intelligently using Monte Carlo Control while positively guiding the optimization of system performance. Experiments demonstrate that the proposed scheme can help achieve an ideal policy for better system performance in the global probabilities of detection and false alarm under various Signal-to-Noise Ratios (SNRs).

Original languageEnglish
Title of host publicationQuality, Reliability, Security and Robustness in Heterogeneous Systems - 19th EAI International Conference, QShine 2023, Proceedings
EditorsVictor C. M. Leung, Hezhang Li, Xiping Hu, Zhaolong Ning
PublisherSpringer Science and Business Media Deutschland GmbH
Pages211-225
Number of pages15
ISBN (Print)9783031651229
DOIs
Publication statusPublished - 2024
Event19th EAI International Conference on Heterogeneous Networking for Quality, Reliability, Security and Robustness, QShine 2023 - Shenzhen, China
Duration: 8 Oct 20239 Oct 2023

Publication series

NameLecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST
Volume574 LNICST
ISSN (Print)1867-8211
ISSN (Electronic)1867-822X

Conference

Conference19th EAI International Conference on Heterogeneous Networking for Quality, Reliability, Security and Robustness, QShine 2023
Country/TerritoryChina
CityShenzhen
Period8/10/239/10/23

Keywords

  • cognitive radio sensor networks
  • cooperative spectrum sensing
  • Internet of Things
  • Monte Carlo Control

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