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Energy minimizing based algorithm design of caching system in power line network

A technology of energy minimization and caching system, which is applied in the direction of distribution line transmission system, radio transmission system, transmission system, etc., and can solve the problems of unreasonable energy distribution and large total energy consumption of the system

Inactive Publication Date: 2017-08-29
NANJING UNIV OF SCI & TECH
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AI Technical Summary

Problems solved by technology

[0006] Purpose of the invention: Aiming at the problem of unreasonable system energy distribution and excessive total energy consumption in the current power line communication system, the present invention designs a caching system algorithm based on energy minimization

Method used

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  • Energy minimizing based algorithm design of caching system in power line network
  • Energy minimizing based algorithm design of caching system in power line network
  • Energy minimizing based algorithm design of caching system in power line network

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Experimental program
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Embodiment Construction

[0023] The basic flow of the caching system algorithm based on energy minimization is as follows:

[0024] (1) Step 1:

[0025] Estimate P 0 , and two constraints need to be satisfied: one is the limitation of the signal-to-interference ratio (SINR) of the receiving end; the other is the limitation of the maximum power of each port of the relay node, as follows:

[0026]

[0027] (2) Step 2:

[0028] Using the Semidefinite Relaxation (SDR) method to P 0 Process to make it matrix. Therefore P 0 can be converted to P SDR .

[0029] (3) Step 3:

[0030] Approximate P SDR into a convex continuous function.

[0031] (4) Step 4:

[0032] A series of local optimal solutions W are iteratively obtained through the DC algorithm j . The update method is as follows:

[0033]

[0034] This patent simulates a comparison diagram of relay energy consumption, backhaul link energy consumption, and total system energy consumption increase and decrease under different conversio...

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Abstract

The invention discloses an energy minimizing based algorithm design of a caching system in the power line MIMO network. A caching technology is added to access nodes of a multi-relay cooperation cell of the power line, and a relay cooperation model based on a caching mechanism is established. The model provides a method based on semi-definite relaxation and 0 norm function approximation by taking the total power consumption of the system as an objective function and the user signal to interference ratio and node power as restriction conditions, a multi-relay cooperative optimization problem is converted into a continuous convex programming problem, and an optimal programming solution is solved by an iteration method. It is proved that energy consumed by the system is minimized on the premise that the communication service quality is satisfied and requirements for the communication service quality and the low system power consumption are met.

Description

technical field [0001] The invention relates to an algorithm design of a buffer system based on energy minimization in a power line MIMO network, and belongs to the field of power line communication (Power Line Communication, PLC). Background technique [0002] In recent years, with the rise of a new round of energy transformation, the global energy pattern is undergoing major changes. The closer integration of the Internet, the Internet of Things, the power system, and the communication network has promoted the rapid transformation of the traditional network to the Smart Grid (SmartGrid, SG), and the application of Power Line Communication (PLC) is becoming more and more extensive. The power line network with the characteristics of high speed and large capacity is gradually emerging. Power line communication uses the existing power line as the communication medium to realize the interconnection and intercommunication of the power line network, which is the technical basis ...

Claims

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Application Information

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IPC IPC(8): H04B3/54H04B3/58H04B7/0426
CPCH04B3/54H04B3/58H04B7/0426Y02D30/70
Inventor 谢虎严佳慧钱玉文桂林卿李骏束锋
Owner NANJING UNIV OF SCI & TECH
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