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Transmission method with optimal energy efficiency under actual power consumption model

A power consumption and model technology, applied in the direction of energy reduction, network traffic/resource management, advanced technology, etc., to achieve the effect of high system energy efficiency

Inactive Publication Date: 2015-02-04
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it fails to carry out energy-efficient transmission design in combination with the actual arrival process of data packets under the actual power consumption model, so that the system cannot transmit at the optimal transmission rate of energy efficiency under the constraints of service delay.

Method used

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  • Transmission method with optimal energy efficiency under actual power consumption model
  • Transmission method with optimal energy efficiency under actual power consumption model
  • Transmission method with optimal energy efficiency under actual power consumption model

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0018] In this embodiment, for a given system bandwidth W, the static power consumption P when the transmitter is working C , the power consumption P when the transmitter is in sleep S , the reciprocal ξ of the power amplifier efficiency, according to the actual power consumption model P = ξ · ( 2 r W - 1 ) / h + P C , r > 0 P ...

Embodiment 2

[0025] Embodiment 2: Given the arrival process of the data packet (including the arrival time of the data packet and the size of each data packet) and the delay constraint T, calculate the optimal transmission rate of each data packet with energy efficiency.

[0026] figure 2 It is the system model adopted in this embodiment: a total of N data packets arrive within the delay constraint T, where the starting time is recorded as t 1 , at this moment the arrival packet size is B 1 , time t 2 The second packet arrives, packet size B 2 , the arrival interval between two data packets is L 1 = t 2 -t 1 . The third packet arrives at time t 3 , the packet size is B 3 , and the arrival interval of the second packet is L 2 = t 3 -t 2 . By analogy, the arrival time of the i-th data packet is t i , the packet size is B i , the arrival interval between the i-th data packet and the i+1-th data packet is L i = t i+1 -t i , L N is the remaining duration when the Nth data pac...

Embodiment 3

[0034] Example 3: Given the average arrival rate λ of a data packet, the average packet length According to the current number of uncompleted bits B s (t) and the delay constraint T, calculate the optimal transmission rate r(t) at time t.

[0035] From the online transmission control method, the optimal transmission rate r(t) at time t can be obtained by the following online transmission rate formula:

[0036] r ( t ) = max { B s ( t ) T - t + λ B...

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Abstract

The invention discloses a transmission method with the optimal energy efficiency under an actual power consumption model. The transmission method is characterized by comprising the steps of: firstly, according to a channel gain h and an actual power consumption model, obtaining a delay constraint-free optimal-energy-efficiency transmission rate ree by a sending end; when known data packets actually arrive within a given time, solving an optimal sending rate corresponding to each data packet through an offline transmission control method; and when only knowing a current remaining data volume, the average arrival rate of data packets and the average length of the data packets, calculating a real-time sending rate through an online transmission control method. A transmission rate is adaptively regulated according to the data packet arrival condition and a sender power consumption model, therefore, system energy efficiency is optimal. Under the condition that data packet time restraint is ensured, given data packets can be transmitted with the minimum energy.

Description

technical field [0001] The invention belongs to the technical field of transmission control methods in wireless communication and networks, and specifically relates to a high-energy-efficiency transmission control method that satisfies the delay requirements of data packets under an actual power consumption model, including determining the transmission rate according to the arrival of data packets and the power consumption model of a transmitter method of adaptive adjustment. Background technique [0002] "Energy Efficiency Packet Transmission on Wireless Links" ( Energy-Efficient Packet Transmission Over a Wireless Link) studied the problem of how to transmit data packets arriving at different times within a given time in a Gaussian channel to minimize the energy required by the system. However, when calculating the energy consumption of the system Only the energy consumption of transmission is considered and the energy consumption of other parts of the actual transmitter ...

Claims

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Application Information

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IPC IPC(8): H04W28/22
CPCY02D30/70
Inventor 任海豹赵明周武旸
Owner UNIV OF SCI & TECH OF CHINA