阅读说明：本技术 一种基于博弈过程的网络干扰控制方法及装置 (Network interference control method and device based on game process ) 是由 丰雷 李文璟 陈毅龙 欧清海 王艳茹 王志强 喻鹏 邵苏杰 杨洋 林颖欣 冉迪雅 于 2019-10-22 设计创作，主要内容包括：本发明公开了一种基于博弈过程的网络干扰控制方法及装置,该方法包括：获取至少一个D2D通信设备的初始发射功率,并将初始发射功率作为基准功率；根据初始发射功率计算毫米波微蜂窝的初始价格,并将初始价格作为基准价格；根据基准价格和基准功率计算第一发射功率；当第一发射功率和基准功率的差值小于或等于第一预设值时,则根据第一发射功率计算毫米波微蜂窝的第一价格；当第一价格和基准价格的差值小于或等于第二预设值时,则将第一价格确定为最优价格,将第一发射功率确定为最优发射功率。本发明通过优化D2D通信设备的发射功率,来减轻D2D对微蜂窝通信的干扰,实现微蜂窝与D2D链路性能的均衡。(The invention discloses a network interference control method and a device based on a game process, wherein the method comprises the following steps: acquiring initial transmitting power of at least one D2D communication device, and taking the initial transmitting power as reference power; calculating the initial price of the millimeter wave microcells according to the initial transmitting power, and taking the initial price as a reference price; calculating a first transmission power according to the reference price and the reference power; when the difference value between the first transmitting power and the reference power is smaller than or equal to a first preset value, calculating a first price of the millimeter wave microcells according to the first transmitting power; and when the difference value between the first price and the reference price is less than or equal to a second preset value, determining the first price as the optimal price and determining the first transmission power as the optimal transmission power. The invention reduces the interference of D2D to the microcellular communication by optimizing the transmitting power of the D2D communication equipment, and realizes the balance of the performance of the microcellular and D2D links.)

1. A network interference control method based on a game process is applied to a communication network constructed by millimeter wave micro-cells and D2D communication equipment, and is characterized by comprising the following steps:

step a: acquiring initial transmitting power of at least one D2D communication device, and taking the initial transmitting power as reference power;

step b: calculating the initial price of the millimeter wave microcells according to the initial transmitting power, and taking the initial price as a reference price;

step c: calculating a first transmission power according to the reference price and the reference power;

step d: judging whether the difference value between the first transmitting power and the reference power is smaller than or equal to a first preset value;

step e: when the difference value between the first transmitting power and the reference power is smaller than or equal to a first preset value, executing step f;

step f: calculating a first price of the millimeter wave microcells according to the first transmission power;

step g: judging whether the difference value between the first price and the reference price is smaller than or equal to a second preset value or not;

step h: when the difference value between the first price and the reference price is smaller than or equal to a second preset value, executing the step i;

step i: determining the first price as an optimal price and determining the first transmission power as an optimal transmission power.

2. The network interference control method of claim 1, wherein the method further comprises:

and when the difference value between the first transmission power and the reference power is larger than a first preset value, updating the reference power to the first transmission power, returning to execute the step c to calculate new first transmission power, executing the step d until the difference value between the new first transmission power and the reference power is smaller than or equal to the first preset value, and executing the step f.

3. The network interference control method of claim 1, wherein the method further comprises:

and when the difference value between the first price and the reference price is larger than a second preset value, updating the reference power to the first transmission power, updating the reference price to the first price, returning to execute the step c to calculate new first transmission power, executing the step d until the difference value between the new first transmission power and the reference power is smaller than or equal to the first preset value, and executing the step f.

4. The network interference control method of claim 2, wherein the method further comprises:

and when the difference value between the first price and the reference price is larger than a second preset value, updating the reference power to the first transmission power, updating the reference price to the first price, returning to execute the step c to calculate new first transmission power, executing the step d until the difference value between the new first transmission power and the reference power is smaller than or equal to the first preset value, and executing the step f.

5. The network interference control method of claim 1, wherein the first transmit power is calculated according to the following formula:

wherein the content of the first and second substances,

6. The network interference control method of claim 1, wherein the initial price of the millimeter wave micro cell and the first price of the millimeter wave micro cell are calculated according to the following formulas:

wherein the content of the first and second substances,

7. A network interference control device based on game process is characterized by comprising:

an obtaining module, configured to obtain an initial transmit power of at least one D2D communication device, and use the initial transmit power as a reference power;

the first calculation module is used for calculating the initial price of the millimeter wave microcells according to the initial transmitting power and taking the initial price as a reference price;

the second calculation module is used for calculating first transmission power according to the reference price and the reference power;

the first judging module is used for judging whether the difference value between the first transmitting power and the reference power is smaller than or equal to a first preset value or not;

the third calculation module is used for calculating a first price of the millimeter wave microcells according to the first transmission power when the difference value between the first transmission power and the reference power is smaller than or equal to a first preset value;

the second judging module is used for judging whether the difference value between the first price and the reference price is smaller than or equal to a second preset value or not;

and the determining module is used for determining the first price as the optimal price and the first transmitting power as the optimal transmitting power when the difference value between the first price and the reference price is less than or equal to a second preset value.

8. A terminal, comprising: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor to cause the at least one processor to perform the network interference control method according to any one of claims 1 to 6.

9. A computer readable storage medium having stored thereon computer instructions, which when executed by a processor, implement the network interference control method according to any one of claims 1 to 6.

Technical Field

The invention relates to the field of network communication, in particular to a network interference control method and device based on a game process.

Background

In the future 5G network, the number of mobile users and the number of devices of the Internet of things will be increased on a large scale, so that the data volume is increased sharply. Therefore, on the basis of the conventional communication, some new breakthrough technologies need to be introduced to meet the needs of future networks, wherein the millimeter wave and D2D communication technologies have gained wide attention with respective unique advantages.

Millimeter wave communication with huge bandwidth of 30-300GHz can effectively cope with spectrum shortage, and network capacity is improved. Device-to-Device (D2D) communication may supplement cellular communication by establishing a direct link between close-range users, improving network performance. The combination of the two technologies can achieve remarkable effects in the aspects of energy conservation, throughput and frequency spectrum efficiency improvement. Under the scene that millimeter wave micro cells and millimeter wave D2D coexist, the D2D multiplexes spectrum resources of micro cell users, so that the spectrum efficiency is greatly improved, but the spectrum multiplexing can cause interference of the D2D to the millimeter micro cell users, so that how to reduce the interference and realize the balance of the micro cells and the D2D link has important significance for ensuring the communication performance.

Disclosure of Invention

Therefore, the technical problem to be solved by the present invention is to overcome the defect of interference to the femtocell user caused by reuse of the spectrum resource of the femtocell user by D2D in the prior art, thereby providing a network interference control method and device based on the game process.

According to a first aspect, the embodiment of the invention discloses a network interference control method based on a game process, which comprises the following specific steps: step a: acquiring initial transmitting power of at least one D2D communication device, and taking the initial transmitting power as reference power; step b: calculating the initial price of the millimeter wave microcells according to the initial transmitting power, and taking the initial price as a reference price; step c: calculating a first transmission power according to the reference price and the reference power; step d: judging whether the difference value between the first transmitting power and the reference power is smaller than or equal to a first preset value; step e: when the difference value between the first transmitting power and the reference power is smaller than or equal to a first preset value, executing step f; step f: calculating a first price of the millimeter wave microcells according to the first transmission power; step g: judging whether the difference value between the first price and the reference price is smaller than or equal to a second preset value or not; step h: when the difference value between the first price and the reference price is smaller than or equal to a second preset value, executing the step i; step i: determining the first price as an optimal price and determining the first transmission power as an optimal transmission power.

With reference to the first aspect, in a first implementation manner of the first aspect, the method further includes: and when the difference value between the first transmission power and the reference power is larger than a first preset value, updating the reference power to the first transmission power, returning to execute the step c to calculate new first transmission power, executing the step d until the difference value between the new first transmission power and the reference power is smaller than or equal to the first preset value, and executing the step f.

With reference to the first aspect, in a second embodiment of the first aspect, the method further includes: and when the difference value between the first price and the reference price is larger than a second preset value, updating the reference power to the first transmission power, updating the reference price to the first price, returning to execute the step c to calculate new first transmission power, executing the step d until the difference value between the new first transmission power and the reference power is smaller than or equal to the first preset value, and executing the step f.

With reference to the first embodiment of the first aspect, in a third embodiment of the first aspect, the method further includes: and when the difference value between the first price and the reference price is larger than a second preset value, updating the reference power to the first transmission power, updating the reference price to the first price, returning to execute the step c to calculate new first transmission power, executing the step d until the difference value between the new first transmission power and the reference power is smaller than or equal to the first preset value, and executing the step f.

With reference to the first aspect, in a fourth implementation manner of the first aspect, the first transmit power is calculated according to the following formula:

wherein the content of the first and second substances,representing the sum of interference and noise received by the communication device at the ith D2D receiving end from other D2D and microcellular users, c is the initial price,

for the channel gain between the ith D2D transmitting side communication device and the ith D2D receiving side communication device,for the channel gain between the ith D2D transmitting end communication device and the base station,

for the channel gain between the jth D2D transmitting end communication device and the ith D2D receiving end communication device,

for the channel gain between the mth cellular user and the ith D2D receiver-side communication device,

for the jth D2D transmit power,

transmit power for the mth cellular user, N and

D2D sets respectively generating interference and not generating interference to the base station, M is a cellular user set, sigma_iThe power of the i-th gaussian noise of D2D.

With reference to the first aspect, in a fifth implementation manner of the first aspect, the initial price of the millimeter wave micro cell and the first price of the millimeter wave micro cell are calculated according to the following formulas:

wherein the content of the first and second substances,

the channel gain of the beam at the base station for the ith D2D transmitting end communication device and the kth cellular user,

for the channel gain, σ, between the kth cellular user and the base station₀Is the gaussian noise power of the base station,

for the lowest rate requirement of the kth cellular user,is the transmit power of the kth cellular user.

According to a second aspect, an embodiment of the present invention discloses a network interference control device based on a game process, including: an obtaining module, configured to obtain an initial transmit power of at least one D2D communication device, and use the initial transmit power as a reference power; the first calculation module is used for calculating the initial price of the millimeter wave microcells according to the initial transmitting power and taking the initial price as a reference price; the second calculation module is used for calculating first transmission power according to the reference price and the reference power; the first judging module is used for judging whether the difference value between the first transmitting power and the reference power is smaller than or equal to a first preset value or not; the third calculation module is used for calculating a first price of the millimeter wave microcells according to the first transmission power when the difference value between the first transmission power and the reference power is smaller than or equal to a first preset value; the second judging module is used for judging whether the difference value between the first price and the reference price is smaller than or equal to a second preset value or not; and the determining module is used for determining the first price as the optimal price and the first transmitting power as the optimal transmitting power when the difference value between the first price and the reference price is less than or equal to a second preset value.

According to a third aspect, an embodiment of the present invention discloses a terminal, including: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the processor to cause the processor to perform the network interference control method according to the first aspect or any of the embodiments of the first aspect.

According to a fourth aspect, an embodiment of the present invention discloses a computer-readable storage medium, on which computer instructions are stored, and the computer instructions, when executed by a processor, implement the network interference control method according to the first aspect or any embodiment of the first aspect.

The technical scheme of the invention has the following advantages:

according to the network interference control method provided by the invention, an interference control problem between D2D communication equipment and millimeter wave micro-cellular users is modeled into a Stackelberg game, the initial transmitting power of at least one D2D communication equipment is obtained, and the initial transmitting power is used as reference power; calculating the initial price of the millimeter wave microcells according to the initial transmitting power, and taking the initial price as a reference price; calculating a first transmission power according to the reference price and the reference power; when the difference value between the first transmitting power and the reference power is smaller than or equal to a first preset value, calculating a first price of the millimeter wave microcells according to the first transmitting power; when the difference value between the first price and the reference price is smaller than or equal to a second preset value, the first price is determined as the optimal price, and the first transmission power is determined as the optimal transmission power, so that the interference of D2D communication equipment on millimeter wave microcellular communication caused by frequency spectrum resource multiplexing is reduced, the balance of microcellular and D2D link performance is realized, and the network performance is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a flowchart of a specific example of a network interference control method according to embodiment 1 of the present invention;

fig. 2 is a schematic block diagram of a specific example of a network interference control apparatus according to embodiment 2 of the present invention;

fig. 3 is a schematic block diagram of a specific example of a network interference control apparatus according to embodiment 2 of the present invention;

fig. 4 is a schematic block diagram of a specific example of a network interference control apparatus according to embodiment 2 of the present invention;

fig. 5 is a schematic block diagram of a specific example of a network interference control apparatus according to embodiment 2 of the present invention;

fig. 6 is a schematic block diagram of a specific example of a terminal in the embodiment of the present invention;

FIG. 7 is a graph comparing the effects of the examples of the present invention.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.