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A Resource Allocation Method Based on Power Minimization

A resource allocation and minimum power technology, applied in the field of communication, can solve problems such as unsatisfactory system energy consumption

Active Publication Date: 2019-05-21
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current power minimization method usually adopts the instantaneous power minimization method, that is, under the premise of ensuring a certain data transmission rate, the system energy consumption generated by the mobile terminal in each time slot during data transmission However, this instantaneous power minimization method can only obtain partial optimization results, and the effect of reducing the system energy consumption generated by the mobile terminal during data transmission is still not ideal.

Method used

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  • A Resource Allocation Method Based on Power Minimization
  • A Resource Allocation Method Based on Power Minimization
  • A Resource Allocation Method Based on Power Minimization

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Embodiment Construction

[0065] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0066] A resource allocation method based on power minimization, the flowchart of which is shown in figure 1 shown, including the following steps:

[0067] ① Define a downlink to be allocated as the downlink to be allocated. There is a base station and K mobile terminals in the downlink to be allocated. Define every two adjacent time slots as a double time slot. Define The previous time slot in a double time slot is the first time slot, and the second time slot in the same double time slot is the second time slot. Slots transmit data to the mobile terminal once through N subcarriers in a transmission channel corresponding to the double time slot, where K≥2, N≥2;

[0068] ② For any double time slot, resource allocation is performed in the first time slot of the double time slot. The specific process is:

[0069] ②-1 Obtain the transmission r...

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Abstract

The invention discloses a resource allocation method based on power minimization, which is characterized in that it includes the following steps: the base station allocates N subcarriers to the corresponding mobile terminal in the first time slot of any double time slot and determines that the base station is in the first time slot of any two time slots. The number of subcarriers actually allocated to each mobile terminal in the first time slot of the double time slot; the power that should be loaded on each subcarrier actually allocated to each mobile terminal in the first time slot of the double time slot Allocation; the base station allocates N subcarriers to corresponding mobile terminals in the second time slot of the double time slot and determines the subcarriers that the base station actually allocates to each mobile terminal in the second time slot of the double time slot number; in the second time slot of the double time slot, the power that should be loaded on each subcarrier that is actually allocated to each mobile terminal is allocated; the advantage is that the effect of reducing energy consumption is effectively realized, ensuring that different mobile terminals The speed requirement that needs to be achieved, and the complexity of calculation processing is reduced.

Description

technical field [0001] The invention relates to a resource allocation method in the communication field, in particular to a resource allocation method based on power minimization. Background technique [0002] With the improvement of living standards, people's requirements for wireless communication experience are getting higher and higher. The fourth-generation mobile communication system (4G) represented by the main LTE-Advanced (LTE-A) has become a popular research object for scientific and technological personnel. , where Orthogonal frequency-division multiple access (Orthogonal frequency-division multiplexing, referred to as OFDMA) access technology is one of the key technologies of the 4G system, which allows multiple mobile terminals to simultaneously transmit data on orthogonal subcarriers, And it can effectively reduce inter-symbol interference (Inter-symbol Interference, ISI for short) caused by multipath fading, thereby improving spectrum utilization. [0003] Th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/02H04W72/04
CPCH04W52/0219H04W72/0453H04W72/0473Y02D30/70
Inventor 雷鹏李有明李婷周桂莉付彩梅
Owner NINGBO UNIV
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