Low-complexity and energy-saving wireless resource allocation method of densely-arranged household base station network

Abstract

The embodiment of the invention relates to a low-complexity and energy-saving wireless resource allocation method of a down link of a densely-arranged household base station network. In order to maximize the energy efficiency of the down link of a household base station and decrease the complexity of an adopted algorithm simultaneously, a distributed subchannel allocation and power control algorithm is provided. By performing signal transmission via subchannels different from frequency bands adopted in a macro base station, the layer crossing interference is avoided. The method comprises the following steps: firstly, fairly allocating domain-average subchannels in the household base station, thereby allocating the subchannels to each terminal user; and then obtaining an optimal power response function of the household base station on each subchannel on the basis of a non-cooperative game by utilizing a method of an exponential-weighted time-average filter, so as to obtain a power allocation equilibrium point. By adopting the idea of time average, the problem that a closed-form solution for the transmitting power can not be found by a transient energy efficiency function is solved. As a result, the algorithm complexity is decreased greatly with small energy loss.

Description

technical field [0001] The present invention relates to the field of fourth-generation mobile communication technology, and in particular to a low-complexity energy-saving downlink wireless resource allocation method in a densely deployed home base station network. This solution not only reduces the complexity of downlink resource allocation of the home base station, but also ensures the energy efficiency of the home base station. Background technique [0002] The third-generation and fourth-generation mobile communication systems are usually deployed in higher frequency bands, and the radio waves in these frequency bands have a large wall-penetrating loss, and relying solely on macro base stations is likely to cause insufficient indoor coverage. At the same time, due to the rapid development of the mobile Internet, various mobile multimedia services are gradually becoming popular, which results in an exponential growth of mobile data traffic. Statistics show that more than...

AI Technical Summary

Problems solved by technology

[0002] The third-generation and fourth-generation mobile communication systems are usually deployed in higher frequency bands, and the radio waves in these frequency bands have a large wall-through loss, and relying solely on macro base stations is likely to cause insufficient indoor coverage.

Although some scholars have proposed some low-complexity sub-channel allocation methods, they have not considered the interference of adjacent home base stations

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