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Scalable video multicast resource allocation method based on D2D and cellular network

A resource allocation and cellular network technology, applied in the field of scalable video multicast resource allocation, can solve problems such as tension, achieve the effects of expanding equipment capacity, improving spectrum utilization, and improving overall performance

Active Publication Date: 2015-12-23
HEFEI UNIV OF TECH
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In order to overcome the shortcomings of the existing technology, the present invention provides a method for allocating scalable video multicast resources based on D2D and cellular networks, in order to improve spectrum utilization, increase equipment capacity in the network environment, and solve spectrum resource problems. In order to effectively improve the overall throughput of the network environment, the device can also receive and provide better video quality

Method used

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  • Scalable video multicast resource allocation method based on D2D and cellular network
  • Scalable video multicast resource allocation method based on D2D and cellular network
  • Scalable video multicast resource allocation method based on D2D and cellular network

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Embodiment Construction

[0040] In this example, if figure 1 As shown, a scalable video multicast resource allocation method based on D2D and cellular networks is applied in a network environment composed of servers, base stations and X mobile devices. It is assumed that in the network environment, the base station wants to transmit video The stream s is given to X mobile devices, and each frame in the video stream s contains T number of resource particles. This method is when grouping D2D in a single cellular network environment, the first priority device of each D2D group (PrimaryusersPU), which directly communicates with the base station, and then directly forwards the received video stream data to the corresponding sub-priority device (SecondaryusersSU) of each D2D group. The base station performs scalability on the cellular device and each D2D device. For video multicast resource allocation, a greedy algorithm is used to select an appropriate modulation and coding method for each video layer unti...

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Abstract

The invention discloses a scalable video multicast resource allocation method based on D2D and a cellular network. The method is characterized by comprising the following steps: 1, classifying mobile equipment into cellular users and D2D users; 2, segmenting video streams into a basic layer and an enhanced layer; 3, selecting respective modulation and coding ways for each video layer and performing transmission by a base station; 4, receiving the video layers by the cellular users and primary users, and transmitting the received video layers to secondary users by the primary users; and 5, performing statistics to obtain the total number of the video layers received by the cellular users, the primary users and the secondary users, and calculating a utility value. Through adoption of the method, the spectrum utilization ratio can be increased; equipment capacity in a network environment is increased; and the problem of spectrum resource shortage is solved. Thus, the overall throughput of the network environment is increased effectively, and equipment can receive and provide better video quality.

Description

technical field [0001] The invention relates to the field of artificial intelligence, in particular to a method for allocating scalable video multicast resources based on D2D and cellular networks. Background technique [0002] With the development of telecommunications technology, 3G and 4G technologies have been used for video-on-demand, online video, online game Iptv, etc. The next-generation wireless communication technology 5G is oriented to 2020. The overall wireless mobile network needs to have 1000 times the mobile traffic provision capability. The throughput per unit area needs to be 1000 times or even higher than the current 4G (above 100Gbps / km2). Among them, video services account for 79% of the total market traffic. Therefore, in order to improve the overall performance of the cellular network, improve the utilization rate of the increasingly scarce spectrum resources, and meet the requirements of equipment for transmission rates, related technologies have beco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/2343H04N21/2383H04N21/2385H04N21/262
CPCH04N21/234327H04N21/2383H04N21/2385H04N21/26216
Inventor 黎洁鲍忠明张陈香李奇越范海龙李伟
Owner HEFEI UNIV OF TECH
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