Resource Allocation Method for Heterogeneous Relay Networks Based on Intra-Cell Coordinated Multipoint Transmission

Abstract

The invention provides a heterogeneous relay network resource allocation method based on in-cell coordinated multi-point transmission. The heterogeneous relay network resource allocation method comprises the following steps of a step 1, collecting available bandwidth resource in a heterogeneous relay network system by the heterogeneous relay network system; a step 2, collecting a resource use application of user terminal by the heterogeneous relay network system; and a step 3, allocating the frequency resource in the heterogeneous relay network by the heterogeneous relay network system according to a harmony search algorithm. The heterogeneous relay network resource allocation method provided by the invention has advantages of high efficiency and high reliability. Furthermore the heterogeneous relay network resource allocation method has functions of maximizing total proportional air throughput of the heterogeneous relay network and ensuring high service quality and high fairness of user terminal.

Description

technical field [0001] The invention belongs to the technical field of computer networks, in particular to a heterogeneous relay network resource allocation method based on coordinated multi-point transmission in a cell. Background technique [0002] As one of the key technologies of the fourth-generation long-term evolution, the heterogeneous network allows mixed use of macro base stations and micro base stations in a network area and provides different access capabilities and capacity / coverage requirements. Micro base stations include picocell base stations, femtocell base stations and relay nodes. The micro base station can access the network through a wired backhaul link or a wireless backhaul link and use low transmission power to cover a small area. Considering the high transmission power of the macro base station, if there is no reasonable mobile combination, interference management and radio resource management scheme, the utilization rate of the micro base station ...

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Problems solved by technology

However, the above two methods do not consider the total proportional fair throughput of the heterogeneous relay network, which cannot guarantee the fairness among users.

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