A Spectrum Auction Method for Small Cell Micro Base Stations with Power Allocation and Beamforming

Abstract

The invention provides a micro-cell micro-base-station spectrum auction method with power distribution and beam forming. In a two-layer heterogeneous network system formed by a macro-cellular network, a micro-cell micro-base-station, and mobile phone users, the authorized spectrum provided by a macro-cellular base station is divided into a plurality of time slots through establishment of a spectrum distribution auction model, the auction of the time slot spectrum is performed as commodities according to a set revenue function and an auction object function, and the power distribution method with maximum revenue and the corresponding beam forming factor are obtained according to the optimization theory. By employing the technical scheme of the method, the use right of the authorized spectrum when the macro-cellular base station is idle can be reasonably distributed, the utilization rate of spectrum is increased, the interference of adjacent micro-cell micro-base-stations is reduced, the communication quality is improved, and the maximum economic benefit is obtained.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to the application of a small cell and micro base station spectrum auction method with power allocation and beamforming in a two-layer heterogeneous network system composed of a macro cellular network, a small cell and micro base station, and mobile phone users. Background technique [0002] Nowadays, more and more users rely on mobile communication. With the vigorous development of wireless communication, mobile communication has become an indispensable part of people's daily life. Correspondingly, the number of mobile terminals and the user's demand for spectrum resources also show a large increase. LTE-A, the upgraded version of the fastest commercial mobile communication technology, also has to face new challenges. In order to cope with the ever-increasing demand of mobile communication users, communication operators and equipment manufacturers will set up ...

AI Technical Summary

Problems solved by technology

However, this technology will have the consequence of losing control of the micro base stations that have obtained the right to use the spectrum through auction. It does not take into account that after the spectrum is allocated, the micro base station that has obtained the right to use the spectrum will selfishly increase the transmission power to improve the utility of users. The entire system produces serious interlayer interference, which leads to the disadvantage that the system spectrum utilization rate is not high but affects the communication quality of the entire system users

Images