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D2D-NOMA resource allocation method and system based on HAGA

A D2D-NOMA and resource allocation technology, applied in advanced technology, electrical components, power management, etc., can solve problems such as slow search, premature search, and incomplete consideration of constraints, so as to maximize throughput, improve spectrum efficiency, The effect of improving algorithm efficiency

Active Publication Date: 2021-05-07
CHONGQING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the constraints are not fully considered, and infeasible solutions cannot be avoided, and a single random search algorithm is used, which is prone to problems such as premature search and slow search.

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  • D2D-NOMA resource allocation method and system based on HAGA
  • D2D-NOMA resource allocation method and system based on HAGA
  • D2D-NOMA resource allocation method and system based on HAGA

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Embodiment Construction

[0049] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0050] This embodiment provides a HAGA-based D2D-NOMA resource allocation method, including but not limited to the following steps:

[0051] S1. Aiming at the total throughput of the D2D system, a D2D communication model based on the NOMA technology under the cellular network is established.

[0052] Please refer to figure 1 , figure 1 Shown is a NOMA-based D2D communication system model diagram of a HAGA-based D2D-NOMA resource allocation method provided in...

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Abstract

The invention relates to the technical field of wireless communication, in particular to a D2D-NOMA resource allocation method and system based on HAGA, and the method comprises the steps: building a D2D communication model based on the NOMA technology in a cellular network; multiplexing channels of cellular users for the D2D groups for matching, wherein the channel of the same cellular user allows multiplexing of a plurality of D2D groups; and allocating the power coefficients of the receiving users in the D2D group, wherein the power allocation of the users in the group follows the NOMA criterion. According to the communication resource allocation method, the spectrum efficiency can be effectively improved and the throughput of a D2D communication system can be maximized under the condition that the communication service quality requirements of the cellular users and the D2D users are ensured.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a D2D-NOMA communication resource allocation method and system based on Hill-climbing Adaptive Genetic Algorithm (HAGA). Background technique [0002] The demand for mobile data traffic is increasing exponentially, which will lead to the shortage of bandwidth resources in the current wireless network and severe overloading of base stations. To alleviate this series of problems, Device-to-Device (D2D) technology has emerged, which allows adjacent devices to exchange data without the assistance of cellular base stations. Especially in short-distance communication scenarios such as commercial promotion, social network resource sharing, and public safety, it can greatly improve the channel gain between devices, reduce communication delay, reduce terminal transmit power, and prolong terminal standby time. The spectrum resources of cellular users are used for co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/02H04W24/06H04W52/26
CPCH04W24/02H04W24/06H04W52/265Y02D30/70
Inventor 王茜竹宋勇春高正念
Owner CHONGQING UNIV OF POSTS & TELECOMM