Video streaming media data distributing and pre-caching method based on UDP (User Datagram Protocol) broadcast

A technology of media data and video data, applied in the direction of selective content distribution, image communication, electrical components, etc., which can solve the problems of increasing channel conflicts in mobile ad hoc networks and affecting the communication efficiency of mobile ad hoc networks

Active Publication Date: 2016-01-06
南京大学镇江高新技术研究院
View PDF11 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the increase in the number of mobile phones, the channel conflicts in the MANET will increase sign...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Video streaming media data distributing and pre-caching method based on UDP (User Datagram Protocol) broadcast
  • Video streaming media data distributing and pre-caching method based on UDP (User Datagram Protocol) broadcast
  • Video streaming media data distributing and pre-caching method based on UDP (User Datagram Protocol) broadcast

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0039] figure 1 It is a schematic diagram of the application scenario of this embodiment. The application scenario of this embodiment is that in the mobile ad hoc network constructed by the smart phone through the ad-hoc mode of the wireless network card, each mobile phone node shares its own information with each other through D2D communication. video cache data.

[0040] figure 2 It is a schematic diagram of the data transmission module deployed on each mobile phone node. Each mobile phone is equipped with a transmitter and a receiver to maintain a sending queue and a receiving queue respectively. The present invention is used for the analysis after the broadcast sending and receiving queues in the transmitter part.

[0041] image 3 It is the video cache data packet format transmitted in this embodiment.

[0042] A kind of video stream media da...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a video streaming media data distributing and pre-caching method based on UDP (User Datagram Protocol) broadcast. The method comprises the following steps: adding preset packet header information into each video cache data packet to be transmitted, and fusing broadcast features of wireless channel transmission; distributing and transmitting video streaming media data in a UDP broadcast-based way; and pre-caching received data packets in combination with a video data pre-caching method based on decision tree judgment. The method is used for transmitting and caching the video streaming media data in a mobile ad hoc network constructed by a smart phone through an ad-hoc mode of a wireless network card. Through adoption of the method, a data transmission frequency and a data transmission amount in the mobile ad hoc network are lowered greatly; channel collision times and local data transmission overhead during data transmission in the mobile ad hoc network are reduced; a network capacity and a data transmission efficiency of the mobile ad hoc network are increased; and a communication efficiency in the mobile ad hoc network is increased effectively.

Description

technical field [0001] The invention belongs to the field of data transmission and buffering in wireless mobile ad hoc networks, in particular to a video stream media data distribution and pre-caching method in wireless mobile ad hoc networks. Background technique [0002] The rapid development of mobile streaming media services makes it difficult for the traditional streaming media architecture model based on B2D base station access to meet the growing demand for streaming media bandwidth, restricting the large-scale application and promotion of mobile streaming media services, and seriously affecting the development of mobile streaming media services. Service quality and reliability. [0003] For this reason, people have proposed to use the ad-hoc mode of the wireless network card of the smart phone to build a mobile ad hoc network, and share the streaming media data in the network through D2D, so as to relieve the pressure on the base station. However, with the increase ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H04N21/61H04N21/643H04N21/433
CPCH04N21/4331H04N21/6131H04N21/643
Inventor 徐尧张贤曜叶保留
Owner 南京大学镇江高新技术研究院
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap