Title :
Multi-user cooperative diversity for energy conservation in green mobile networks
Author :
Tuanzhun Qiu ; Rong Yu ; Yan Zhang
Author_Institution :
South China Univ. of Technol., GuangZhou, China
Abstract :
In recent years, green communication has been studied as a promising technology to conserve energy consumption, reduce radio emission and ensure sustainable development of wireless communication systems. A green mobile network will be integrated with the state-of-art advanced wireless networking technologies to fulfill end-to-end green communications. Cooperative communication has been widely utilized to significantly improve system performance and decrease power consumption. In this paper, we utilize cooperative relay to conserve energy consumption in green mobile networks. The relay selection and power allocation are investigated. The theoretical analysis is carried out under different number of cooperative users. We derive the explicit expression of energy consumption for the Amplify-and-Forward (AF) protocol with multiuser diversity. Simulation results demonstrate that the proposed relay selection and power allocation schemes significantly reduce energy consumption in green mobile networks.
Keywords :
amplify and forward communication; cooperative communication; diversity reception; energy conservation; mobile radio; multiuser channels; power consumption; routing protocols; amplify-and-forward protocol; cooperative communication; end-to-end green communications; energy conservation; energy consumption; green mobile networks; multiuser cooperative diversity; power allocation; radio emission; relay selection; sustainable development; wireless communication; Amplify-and-forward (AF); Outage Probability; cooperative communications; green mobile network; relay system;
Conference_Titel :
Communication Technology and Application (ICCTA 2011), IET International Conference on
Conference_Location :
Beijing
DOI :
10.1049/cp.2011.0667