1. Energy-Efficient Resource Allocation in CoMP Systems with Backhaul Capacity Constraints
- Author
-
Haijun Zhang, Jun Zhao, Zhao Ming Lu, Qi Wen Wan, and Xiang Ming Wen
- Subjects
Engineering ,Optimization problem ,business.industry ,ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS ,General Medicine ,Transmission system ,Energy efficient resource allocation ,Backhaul (telecommunications) ,Base station ,Mobile station ,Zero Forcing Equalizer ,business ,Efficient energy use ,Computer network - Abstract
Energy efficient resource allocation is one of the critical issues for the coordinated multipoint (CoMP) transmission system, where the signal received by each mobile station needs to be converged among multiple base stations (BSs) in the same cluster. However, as the interaction of the system is frequent, the overhead of the backhaul signaling will be enormous. In this paper, an iterative resource allocation and scheduling algorithm (IRASA) with dual method is proposed to solve the optimization problem aiming to maximize the system energy efficiency, which considers the backhaul capacity constraints, circuit power consumption and zero forcing pre-coding (ZFP). Simulation results show that our proposed IRASA can significantly improve the energy efficiency of the system with the backhaul capacity constraints.
- Published
- 2014