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A QoE-based Joint Bandwidth and Power Allocation Method for Multiple RATs in HetNets
Fan Yang,Qinghai Yang,곽경섭,Fenglin Fu 한국통신학회 2015 ICT Express Vol.1 No.1
In this letter, we propose an optimal joint bandwidth and power allocation method for heterogeneous wireless networks (HetNets) by maximizing the users’ quality of experience (QoE), which is a widely used subjective metric reflecting the users’ satisfaction of the multimedia service. By taking two factors into consideration simultaneously: Rate Factor (RF) and Energy Factor (EF), we can measure the QoE of end-users effectively. An optimal QoE-driven allocation algorithm is further developed for maximizing the end-users’ QoE utility subject to the constraints of transmit bandwidth, power and data rate. The simulation results demonstrate the theoretical analysis.
Outage Probability of Opportunistic Amplify-and- Forward Relaying in Nakagami-m Fading Channels
Qinghai Yang,Yingji Zhong,곽경섭,Fenglin Fu 한국전자통신연구원 2008 ETRI Journal Vol.30 No.4
We address the outage performance for the opportunistic amplify-and-forward relaying strategies under Nakagami-m fading channels. A closed-form expression for the outage probability is derived. Simulation results verify our theoretical solutions.