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A Capacity-Oriented D2D Multicast Resource Allocation Method

A resource allocation and capacity technology, applied in the communication field, can solve the problems of low system throughput and spectrum utilization, achieve the effect of improving throughput and spectrum efficiency, and ensuring fairness

Active Publication Date: 2021-05-25
JIANGSU ELECTRIC POWER CO +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the disadvantages of such methods are low system throughput and spectrum utilization

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  • A Capacity-Oriented D2D Multicast Resource Allocation Method
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  • A Capacity-Oriented D2D Multicast Resource Allocation Method

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Embodiment Construction

[0030] The purpose of the present invention is to study the capacity-oriented D2D multicast resource allocation mechanism, maximize the system throughput while ensuring the communication quality between CU and D2D and the fairness between D2D, by converting the unbalanced assignment optimization problem into a balanced bipartite graph maximum The weight matching problem is then solved using the Hungarian algorithm.

[0031] We study the scenario of D2D multicast group multiplexing cellular uplink resources, with the goal of maximizing system throughput while ensuring the communication quality between cellular user CU and D2D and the fairness between D2D. First, the present invention transforms the unbalanced assignment optimization problem of resource allocation into a balanced assignment problem, and then uses the Hungarian algorithm in the bipartite graph maximum weight matching of graph theory to find the optimal solution. In the present invention, a single D2D multicast gr...

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Abstract

A capacity-oriented D2D multicast resource allocation method is used for resource allocation of D2D bottom layer multicast communication under a single base station system. The goal is to maximize the system capacity while ensuring the service quality of CU and D2D users, so as to establish an objective function , the objective function is an unbalanced assignment problem, transform the original bipartite graph into a balanced assignment problem, and then use the Hungarian algorithm to solve it to obtain the rightmost resource allocation scheme. In the solution of the present invention, a single D2D multicast group can reuse multiple CU link resources, thereby greatly improving the throughput and spectrum efficiency. In addition, the unbalanced assignment problem is transformed into a balanced assignment problem, which effectively guarantees the D2D multicast Fairness between broadcast groups.

Description

technical field [0001] The invention belongs to the technical field of communication, relates to D2D communication technology, and is a capacity-oriented D2D multicast resource allocation method. Background technique [0002] D2D (Device-to-Device) communication is a new technology that allows terminals to communicate directly by reusing cell resources under the control of a base station. It can increase the spectrum efficiency of the cellular communication system, reduce the terminal transmission power, and solve the problem of lack of spectrum resources in the wireless communication system to a certain extent. [0003] In recent years, with the increasingly widespread application of multimedia technology in mobile inspections and major power maintenance activities, the number of online users has continued to rise. Limited spectrum resources and traditional point-to-point transmission methods are difficult to meet their growing needs. Problems such as voice trunking and vi...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/02H04W4/06H04W28/08H04W72/08H04W72/54
CPCH04W4/06H04W28/08H04W72/54
Inventor 陆忞韦磊郭少勇李秋生郦竞伟严东葛平
Owner JIANGSU ELECTRIC POWER CO