Multi-resource allocation for LTE networks: Joint-optimality and distributed algorithm

Abstract

Current schemes of radio resource allocation for LTE Networks can be summarized as either the centralized or the distributed. In this paper, a hybrid multi-resource allocation scheme is presented from a network overall performance perspective, where evolved NodeBs (eNBs) are motivated to assist users to implement the joint bandwidth scheduling and power water-filling on the physical resource block (PRB). Closed-form bandwidth and power solution are derived with the joint-optimality property proved. Then, a distributed iteration algorithm of joint bandwidth scheduling and power water-filling on the physical resource block (PRB) is developed. Numerical results verify the proposed distributed algorithm, which can achieve a better guarantee of throughput and fairness.