A New Approach of Overlay Method for Cognitive SW HARQ System

Cicek M., AKÇAM N.

WIRELESS PERSONAL COMMUNICATIONS, vol.118, no.2, pp.1075-1086, 2021 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 118 Issue: 2
  • Publication Date: 2021
  • Doi Number: 10.1007/s11277-020-08059-7
  • Journal Name: WIRELESS PERSONAL COMMUNICATIONS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, PASCAL, Applied Science & Technology Source, Communication Abstracts, Compendex, Computer & Applied Sciences, INSPEC
  • Page Numbers: pp.1075-1086
  • Keywords: Cognitive radio, spectrum sharing, feedback communication systems, Stop and wait hybrid ARQ, Radio spectrum management
  • Gazi University Affiliated: Yes

Abstract

The aim of this paper is to obtain communication resource based on the overlay method for the secondary user (SU) in the primary communication environment operating in the Stop-and-Wait Hybrid Automatic Repeat Request (SW-HARQ) protocol. Unlike the overlay Cognitive Radio applications in the literature, in this work communication resources have been obtained for the SU in the time period in which the primary user (PU) is active in the channel. Our performance results have shown that a significant amount of sources of communication can be achieved for the SU by evaluating the waiting times in the primary SW HARQ periods, even when the PU is continuously running in the SW HARQ protocol without emptying the channel.