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Multiple target-oriented enhanced social D2D relay selection method

A multi-objective, enhanced technology, applied in multi-program devices, inter-program communication, instruments, etc., can solve the problem of ignoring favorable decision-making information, failing to distinguish profit-oriented processing strategies, and failing to consider the psychological characteristics of UE's subjective fuzzy judgment hesitation degree. and other issues to achieve the effects of high throughput, high device access ratio, and high system fairness

Active Publication Date: 2018-01-19
SYSU CMU SHUNDE INT JOINT RES INST +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, this scheme relies on the subjective judgment brought by CFAHP, ignoring the favorable decision-making information for relay selection that objective data can provide
At the same time, the implementation of the CFAHP method does not take into account the psychological characteristics of hesitation in UE's subjective fuzzy judgment.
On the other hand, the method fails to distinguish between different processing strategies for gain-type and loss-type indicators

Method used

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  • Multiple target-oriented enhanced social D2D relay selection method
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  • Multiple target-oriented enhanced social D2D relay selection method

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Embodiment 1

[0090] A multi-target-oriented enhanced social D2D relay selection method, comprising the following steps:

[0091] S1: Preprocess the input data to obtain the required type of data;

[0092] S2: Carry out index generation and calculation on the data in S1, that is, the target decision weight;

[0093] S3: Transform and integrate the single-objective output obtained in S2 with the QoS condition, and then solve it through the distributed message passing mechanism to obtain the final output result.

[0094] Further, the specific process of the step S1 is:

[0095] Let the relay user equipment RUE form a set R={R 1 , R 2 ,...,R N}, N is the number of candidate relay user equipment RUE; the user equipment VUE of the relay connection service forms a set V={v 1 ,v 2 ,...,v M}, M is the number of VUE;

[0096] The indicators that need to be calculated for decision weight generation in this method are:

[0097] Link capacity between VUE v and RUE r

[0098] Social similari...

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Abstract

The invention provides a multiple target-oriented enhanced social D2D relay selection method. According to the method, input data are preprocessed to obtain data of a required type; index (namely target) decision weight generation calculation is carried out on the obtained data; and an obtained single-target output amount and quality-of-service (QoS) conditions are converted and integrated, and then solving is carried out through a distributed message passing mechanism to obtain a final output result. According to the algorithm, a multi-target optimization problem is converted into a single-target optimization problem on the basis of combination of a modified IFAHP (MIFAHP) method and an entropy weight method, an expression of the quality-of-service conditions is further converted, and then the D2D UE-NW (UE-to-Network) relay selection result is obtained by distributed solving through a suitable message passing algorithm. According to the method, decision weights of subjective preference of VUE with hesitancy degrees and objective information are combined for consideration, and thus the relay selection result is enabled to obtain more comprehensive performance improvement. The method has a higher equipment access ratio, higher throughput and higher system fairness.

Description

technical field [0001] The present invention relates to the field of mobile communication, and more specifically, relates to a multi-target-oriented enhanced social D2D relay selection method. Background technique [0002] D2D communication technology can enable direct communication between user terminals (UEs) without transmission or forwarding by equipment such as base stations (eNBs), thereby achieving the purpose of reducing the load of eNBs and expanding communication coverage. [0003] UE-NW (UE-to-Network) relay is a new feature introduced by the 3GPP LTE standard formulation group in the D2D communication issue. It has the advantage of flexible deployment and can expand the network coverage without adding existing network equipment. Therefore, it can be widely used in commercial communication, public safety communication (such as earthquake, war) and other fields. Such as figure 1 As shown, a typical D2D UE-NW system includes an eNB, several Relay UEs (RUEs) and se...

Claims

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Application Information

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IPC IPC(8): G06F9/54G06Q50/00H04W40/22
Inventor 江明吴宽
Owner SYSU CMU SHUNDE INT JOINT RES INST
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