Cooperative Rate Splitting Multiple Access in Cognitive Radio Networks: Power Allocation and Location Optimization

Dawei Wang, Jinlong He, Yixin He, Shaoyang Men, Qian Xu, Xin Yang, Wei Liang

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

Abstract

Ultra-reliable and low-latency communication is the basic requirement for delay-sensitive applications. However, limited by the spectrum resource, delay-sensitive services may not be well supported. In order to achieve ultra-reliable and low-latency communications, we propose a novel rate split multiple access (RSMA) based scheme in the unmanned aerial vehicle (UAV) based cognitive radio networks to satisfy primary reliable and timely transmissions while providing secondary spectrum access opportunities. In the RSMA based scheme, the UAV-based secondary transmitter (ST) first receives the primary information and then divides the received primary and the secondary signals as the common and private parts. After combining the primary and secondary common parts as the common signal, the ST will broadcast the common signal, primary private signal, and secondary private signal. In the proposed scheme, the target is to maximize the secondary transmission rate constrained by the primary quality of service requirement. Then, an iterative algorithm is designed to allocate the transmit power, ST's location, and rate split parameter. Simulation results show the performance improvement in the RSMA based scheme compared with the current cooperative cognitive strategies about the secondary rate.

Original languageEnglish
Title of host publication2023 IEEE International Conference on Communications Workshops
Subtitle of host publicationSustainable Communications for Renaissance, ICC Workshops 2023
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1319-1323
Number of pages5
ISBN (Electronic)9798350333077
DOIs
StatePublished - 2023
Event2023 IEEE International Conference on Communications Workshops, ICC Workshops 2023 - Rome, Italy
Duration: 28 May 20231 Jun 2023

Publication series

Name2023 IEEE International Conference on Communications Workshops: Sustainable Communications for Renaissance, ICC Workshops 2023

Conference

Conference2023 IEEE International Conference on Communications Workshops, ICC Workshops 2023
Country/TerritoryItaly
CityRome
Period28/05/231/06/23

Keywords

  • Cognitive radio networks
  • RSMA
  • UAV
  • ultra-reliable and low-latency communication

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