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Method and system for allocating wireless communication resources based on energy efficiency

A technology of energy efficiency and resource allocation, which is applied in the field of resource allocation based on energy efficiency, and can solve problems such as wireless communication resource allocation

Active Publication Date: 2015-01-07
BEIJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the prior art, there is no technology that can effectively allocate wireless communication resources based on energy efficiency

Method used

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  • Method and system for allocating wireless communication resources based on energy efficiency
  • Method and system for allocating wireless communication resources based on energy efficiency
  • Method and system for allocating wireless communication resources based on energy efficiency

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Embodiment 1

[0038] figure 2 It is a flowchart of a method for allocating wireless communication resources according to Embodiment 1 of the present invention, and the following refers to figure 2 Describe in detail the steps of the method

[0039] Step S110, classify the transmission mode of each source node based on the channel state information from each source node to the destination node in the set of source nodes to be allocated.

[0040] In this step, each source node in the set of source nodes to be allocated estimates the channel state information between itself and the destination node, and calculates the channel power gain according to the channel state information, and uses the calculated channel of the direct transmission link The power gain is compared with two decision thresholds to classify the transmission mode of the source node: if the channel power gain of the source node is greater than a larger threshold value, the source node adopts the direct transmission mode; if...

Embodiment 2

[0072] image 3 It is a schematic structural diagram of a resource allocation system based on energy efficiency according to Embodiment 2 of the present invention, which is used to implement the resource allocation method of Embodiment 1 of the present invention. Each part of the resource allocation system is distributed in each node in the communication system, Refer below image 3 Describe in detail the parts of the resource allocation system.

[0073] In the source node include:

[0074] The channel state estimation module is used to estimate the channel state information between the source node and the destination node;

[0075] A channel quality calculation module, configured to calculate channel power gain according to channel state information;

[0076] The source node classification module is used to compare the calculated channel power gain with the decision threshold to carry out source node classification;

[0077] A calculation feedback module, configured to ca...

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Abstract

The invention discloses a method and a system for allocating wireless communication resources based on energy efficiency. The method includes the steps of classifying each source node based on the channel condition information of each source node to each destination node in a source node set to be allocated; allocating a subcarrier of the best channel quality to each source node based on the classification; judging whether all the source nodes reach the destination data rates or not; respectively judging whether energy efficiency of each selected source node is improved or not; judging whether source nodes to be allocated are already not included in the source node set to be allocated or not or whether all the subcarriers in the source node set to be allocated are occupied or not, if so, then finishing the resource allocating process, if not, returning to the step of judging whether all the source nodes reach the destination data rates or not. Since the system energy efficiency is maximized by allocating subcarrier, power and bit jointly, complexity of realizing the resource allocating process is lowered greatly, and reliability of the system is improved effectively.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to an energy efficiency-based resource allocation method and system for a relay cooperative communication system. Background technique [0002] Since the increasing energy loss will cause a series of serious consequences such as global warming, the natural environment on which human beings depend is facing severe challenges, and environmental protection is imminent. Therefore, in various fields, energy-efficient protocols have attracted people's attention. Attach great importance to and guide the development of all walks of life. In wireless communication systems, due to the limited battery resources of mobile terminals and the requirements of multimedia service applications anytime and anywhere, maximizing energy efficiency has also become a new trend in optimizing system design. [0003] Nowadays, cooperative transmission technology has been regarded as an important ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04
CPCY02B60/50Y02D30/70
Inventor 张建华张平姜蕴
Owner BEIJING UNIV OF POSTS & TELECOMM
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