Work

Channel-Hopping Sequence and Searching Algorithm for Rendezvous of Spectrum Sensing

Year: 2024

Type: article

Abstract: -ary m-sequence as a channel-searching pattern for rendezvous in the asymmetric channel model of cognitive radio. We mathematically analyzed and calculated the ETTR when the m-sequence is applied to the conventional scheme, and our simulation results demonstrated that the ETTR performance is significantly better than that of the JS algorithm. Furthermore, we introduced a new channel-searching scheme that maximizes the benefits of the m-sequence and proposed a method to adapt the generation of the m-sequence for use in the newly proposed scheme. We also derived the ETTR mathematically for the new scheme with the m-sequence and showed through simulations that the performance of the new scheme with the m-sequence is superior to that of the conventional scheme with the m-sequence. Notably, when there is only one common channel, the new scheme with the m-sequence achieved approximately four times the improvement in the ETTR compared to the conventional scheme.

Source: Sensors

DOI: 10.3390/s25010062

Authors: Young-June Choi, Young-Sik Kim, Ji-Woong Jang

Institutions: Ajou University, Daegu Gyeongbuk Institute of Science and Technology, Ulsan College

Language: English

Topic: Cognitive Radio Networks and Spectrum Sensing

Subfield: Computer Networks and Communications

Field: Computer Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,955

Funders: National Research Foundation, National Research Foundation of Korea, Ministry of Education, India, Ministry of Science and ICT, South Korea