Distributed energy-saving resource distribution method of heterogeneous network

Abstract

The invention discloses a distributed energy-saving resource distribution method of a heterogeneous network, and belongs to the technical field of heterogeneous network self-organizing network. The method comprises the following steps: a home base station in a residential quarter obtaining a corresponding adjacent jamming list according to a jammed condition of all users; the home base station in the residential quarter obtaining an initial sub-channel allocation according to a new utility function; the home base station in the residential quarter performing cooperative sub-channel allocation to the determined initial sub-channel allocation based on respective adjacent jamming list; the home base station in the residential quarter performing power allocation according to new utility function after determining the sub-channel allocation, and a macro base station performing non-uniform pricing on each sub-channel. The same-layer jamming between the home base stations can be effectively reduced, the QoS requirement of a macro user on each sub-channel can be effectively guaranteed, thereby effectively reducing the cross-layer jamming of the home base station to the macro user.

Description

technical field [0001] The invention belongs to the technical field of self-organizing networks of heterogeneous networks, and relates to a distributed energy-saving resource allocation method of heterogeneous networks. Background technique [0002] In order to meet the demand for ever-increasing data transmission rate and greater coverage, under the requirement of constantly improving network performance, a heterogeneous network (Heterogeneous Network, Hetnet) technology emerges as the times require. There are many different types of network nodes in the heterogeneous network. Different from the traditional single-layer cellular network, the inter-layer interference and intra-layer interference in the heterogeneous network bring greater challenges. In a traditional network deployed by an operator, such as a macro cell and a relay, interference can be eliminated through a frequency reuse scheme (for example, frequency planning of a relay link and a direct link). However, th...

AI Technical Summary

Problems solved by technology

Shared spectrum can cause cross-layer interference between macro base stations and small femtocells

At the same time, in order to improve spectrum utilization, femto base stations may share the same wireless resources, so that same-layer interference will occur between femto base stations

Cross-layer interference and same-layer interference can significantly limit network performance

Without proper interference management, a lot of power will be wasted and the network will be less energy efficient overall than a network without small cells

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