Research on Outage Performance Optimization of Cognitive Relay Network with Cooperative Sensing
| Autor: | YuHao Li, Ya Zhang, Yaolian Song, Shujuan Wang |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Optimization problem
General Computer Science Computer science sensing time 02 engineering and technology SNR Data_CODINGANDINFORMATIONTHEORY 01 natural sciences lcsh:QA75.5-76.95 Base station 0202 electrical engineering electronic engineering information engineering Electronic engineering Computer Science::Networking and Internet Architecture Wireless Network performance Rayleigh fading outage probability Computer Science::Information Theory business.industry 010401 analytical chemistry ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS fusion rule threshold 020206 networking & telecommunications Cognitive relay Outage probability 0104 chemical sciences Cognitive radio Artificial intelligence lcsh:Electronic computers. Computer science business Communication channel |
| Zdroj: | Journal of computing and information technology Volume 24 Issue 2 Journal of Computing and Information Technology, Vol 24, Iss 2, Pp 111-119 (2016) |
| ISSN: | 1846-3908 1330-1136 |
| Popis: | In this work, cooperative spectrum sensing technology is applied to optimize the outage probability of cognitive relay networks. The outage performance optimization problem of cognitive relay networks is resolved by designing the sensing time and fusion rule threshold appropriately. The outage probability by high signal to noise ratio (SNR) approximation under Rayleigh fading channels is derived theoretically, and the solution of optimal fusion rule threshold is given. Theoretical analysis and simulation results illustrate that the optimal sensing time and fusion rule threshold exist to minimize the outage probability. The outage performance of cognitive relay networks is significantly improved under the assistance of cooperative sensing compared with that of non-cooperative sensing scheme. ACM CCS (2012) Classification : Networks → Network components → Wireless access points, base stations and infrastructure → Cognitive radios; Networks → Network performance evaluation → Network performance analysis *To cite this article: Y. Song et al ., "Research on Outage Performance Optimization of Cognitive Relay Network with Cooperative Sensing", CIT. Journal of Computing and Information Technology , vol. 24, no. 2, pp. 111–119, 2016. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|