Cluster head planning and power control method for prolonging network lifetime

A technology of time-to-live and power control, applied in the field of wireless communication, which can solve problems such as network congestion and system overload

Active Publication Date: 2021-04-20
上海微波技术研究所(中国电子科技集团公司第五十研究所) +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

As the number of MTC devices in the future cellular network will show explosive growth, massive wireless access requests will cause system overload and network congestion

Method used

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  • Cluster head planning and power control method for prolonging network lifetime
  • Cluster head planning and power control method for prolonging network lifetime
  • Cluster head planning and power control method for prolonging network lifetime

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Embodiment

[0083] It should be noted that since MTC devices are driven by batteries and their energy is limited, in order to ensure that each device can provide corresponding functions for various applications in a long-lasting and stable manner, it is desirable to reduce the energy consumption of the device as much as possible during system design, thereby prolonging the life of the device. survival time. The flow chart of the cluster head planning and power control method for prolonging the network lifetime in a massive MTC network mainly includes two parts, as follows: figure 1 Shown: the cluster head planning method and the power control method respectively. First of all, the main task of the cluster head planning method is to obtain the optimal number of rounds for each device to act as a cluster head to maximize the network FED time, and establish a cluster head index table to determine the cluster head device for each round of transmission. Then, a power control method is used to...

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Abstract

The invention discloses a cluster head planning and power control method for prolonging network lifetime. The method comprises the following steps: calculating the optimal round number of each device serving as a cluster head so as to maximize network FED time; establishing a cluster head index table; determining cluster head equipment of the current round of transmission; calculating the optimal sending power of each device to minimize each round of energy consumption of the network; and enabling each piece of equipment to transmit the data packet according to the optimal transmitting power to finish the current round of data transmission. According to the method, an optimization problem is established by taking maximization of network FED time as a target and taking equipment energy as a constraint, and the optimal round number of each piece of equipment serving as a cluster head is solved. Besides, a power control method for minimizing the network energy consumption under the constraint of the equipment transmission time is also researched, the FED time of massive MTC networks is obviously prolonged, the network energy consumption can be further reduced by applying the power control method, the network survival time is prolonged, and the engineering practical application value is realized.

Description

technical field [0001] The invention relates to a cluster head planning method, in particular to a cluster head planning and power control method for prolonging the network survival time, and belongs to the technical field of wireless communication. [0002] technical background [0003] As one of the important application scenarios of the fifth generation mobile communication, massive Machine Type Communication (mMTC) has received extensive attention. Since the number of MTC devices in the future cellular network will show explosive growth, massive wireless access requests will lead to system overload and network congestion. In addition, MTC devices are generally powered by batteries, and they will not be manually charged for several years or even ten years after deployment, so the energy consumption of the devices must be reduced as much as possible. Clustering is an important way to alleviate MTC network access congestion and reduce equipment energy consumption. It mainly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/70H04W16/18H04W40/32H04W52/02H04W52/30
CPCY02D30/70
Inventor 张锐张欣怡阮玉晗李勇朝刘为袁宏伟姜小宇
Owner 上海微波技术研究所(中国电子科技集团公司第五十研究所)
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