Uplink Decentralized Joint Bandwidth and Power Allocation for Energy-Efficient Operation in a Heterogeneous Wireless Medium

作者：Ismail Muhammad^*; Gamage Amila Tharaperiya; Zhuang Weihua; Shen Xuemin; Serpedin Erchin; Qaraqe Khalid

来源：IEEE Transactions on Communications, 2015, 63(4): 1483-1495.

DOI：10.1109/TCOMM.2015.2408601

• Energy efficient communications
• green communications
• multi-homing resource allocation
• heterogeneous wireless medium

In this paper, energy efficient uplink communications are investigated for battery-constrained mobile terminals (MTs) with service quality requirements and multi-homing capabilities. A heterogeneous wireless medium is considered, where MTs communicate with base stations (BSs) and access points (APs) of different networks with overlapped coverage. Different from the existing works, we develop a quality of service (QoS)-based optimization framework for joint uplink bandwidth and power allocation to maximize energy efficiency for a set of MTs with multi-homing capabilities. The proposed framework is implemented in a decentralized architecture, through coordination among BSs/APs of different networks and MTs, which is a desirable feature when different networks are operated by different service providers. A suboptimal framework is presented with a reduced computational complexity as compared with the optimal framework. Simulation results demonstrate the improved performance of both the optimal and suboptimal frameworks over a state-of-the-art benchmark.

• 出版日期2015-4