title: A Novel Component Carrier Configuration and Switching Scheme for Real-Time Traffic in a Cognitive-Radio-Based Spectrum Aggregation System.
abstract: In spectrum aggregation (SA), two or more component carriers (CCs) of different bandwidths in different bands can be aggregated to support a wider transmission bandwidth. The scheduling delay is the most important design constraint for the broadband wireless trunking (BWT) system, especially in the cognitive radio (CR) condition. The current resource scheduling schemes for spectrum aggregation become questionable and are not suitable for meeting the challenge of the delay requirement. Consequently, the authors propose a novel component carrier configuration and switching scheme for real-time traffic (RT-CCCS) to satisfy the delay requirement in the CR-based SA system. In this work, the authors consider a sensor-network-assisted CR network. The authors first introduce a resource scheduling structure for SA in the CR condition. Then the proposed scheme is analyzed in detail. Finally, simulations are carried out to verify the analysis on the proposed scheme. Simulation results prove that our proposed scheme can satisfy the delay requirement in the CR-based SA system.
authors.affiliation: Harbin Institute of Technology Communication Research Center, Harbin 150001, China. fucloudsea@163.com.|Key Laboratory of Police Wireless Digital Communication, Ministry of Public Security, Harbin 150001, China. fucloudsea@163.com.
authors.forename: Yunhai
authors.initials: Y
authors.lastname: Fu
authors.affiliation: Harbin Institute of Technology Communication Research Center, Harbin 150001, China. malin@hit.edu.cn.|Key Laboratory of Police Wireless Digital Communication, Ministry of Public Security, Harbin 150001, China. malin@hit.edu.cn.
authors.forename: Lin
authors.initials: L
authors.lastname: Ma
authors.affiliation: Harbin Institute of Technology Communication Research Center, Harbin 150001, China. ybxu@hit.edu.cn.|Key Laboratory of Police Wireless Digital Communication, Ministry of Public Security, Harbin 150001, China. ybxu@hit.edu.cn.
authors.forename: Yubin
authors.initials: Y
authors.lastname: Xu
keywords: RT-CCCS; cognitive radio; real-time traffic; resource scheduling; spectrum aggregation