Method for optimizing resources of family base station double-layer network based on energy efficiency

Abstract

The invention discloses a method for optimizing resources of a family base station double-layer network based on energy efficiency. The method aims at, in the OFDMA family base station double-layer network, improving the energy efficiency of a family base station on an uplink through the thought that component channel allocation and power control modeling serve as a non-cooperative game so as to achieve the aims of improving network throughput and saving energy. An exponential order pricing factor is introduced into a given energy efficiency utility function so that interference of a family user on a macro base station can be reduced, and meanwhile circuit consumption at a wireless terminal is introduced so that practical conditions can be more approached. A component channel and power allocation method based on the utility function can be achieved through two steps of, firstly, adopting a next-best method to achieve component channel allocation, and then adopting the supermodel game theory to achieve optimal power allocation. According to the method, the complexity of the problem that the uplink is combined with the component-channel and power allocation is reduced, the throughput of the user of the family base station is improved, meanwhile, energy consumption of the terminal user is reduced, and the aim of saving the energy is achieved.

Description

technical field [0001] The patent of the present invention relates to the field of mobile communication technology, more particularly, the present invention is aimed at the uplink of a two-layer network composed of OFDMA home base stations and cellular systems, and is a resource optimization method based on energy efficiency. Background technique [0002] In recent years, with the rapid growth of the number of mobile Internet users and the high demand of users for mobile multimedia services, high data capacity in wireless networks, satisfying the service quality of various services and improving network coverage have become research hotspots in next-generation wireless communication networks. . [0003] 3GPP introduces LTE technology to meet the high data requirements in terms of bandwidth and the low latency requirements of various services, but the link capacity of the LTE system is close to the Shannon limit, so the capacity and coverage of single-layer networks (such as ...

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Problems solved by technology

[0003] 3GPP introduces LTE technology to meet the high data requirements in terms of bandwidth and the low latency requirements of various services, but the link capacity of the LTE system is close to the Shannon limit, so the capacity and coverage of single-layer networks (such as cellular networks) are improved There is not much room for improvement

The femtocell can solve this problem. It uses the spectrum again within the coverage of the macro base station, and shares part or all of the spectrum resources with the macro base station. Since the same frequency band resources are used, it will inevitably bring macro base station users and family Interference from base station users on the same frequency band

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