Video file data transmission method based on ad hoc network

A technology for video files and data, applied in the field of video file data transmission, can solve the problems of error occurrence, change, multi-path fading, masking effect and inter-signal interference.

Active Publication Date: 2012-05-02
RES INST OF SUN YAT SEN UNIV & SHENZHEN
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  • Abstract
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Problems solved by technology

[0005] The mobile communication system is mainly used for voice transmission, and other services, such as audio and video, images or other data, have only two methods to transmit on the mobile channel, one seems to use a simple automatic repeat-request protocol (Automatic Repeat-reQuest , ARQ), which can guarantee error-free transmission, but it will also cause delay and bit throughput rate (Bit Thoughout

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  • Video file data transmission method based on ad hoc network
  • Video file data transmission method based on ad hoc network
  • Video file data transmission method based on ad hoc network

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Embodiment Construction

[0034] 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 creative efforts fall within the protection scope of the present invention.

[0035] The purpose of the present invention is to propose a kind of video file data transmission method based on the Ad hoc network based on the invention, which introduces an adaptive layer and a multiplexing layer based on the existing system structure so that the system is more suitable for multimedia transmission, It has functions such as error control, intelligent routing selection, congestion control, and priority scheduling to ensure system robustness, adapta...

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Abstract

The embodiment of the invention discloses a video file data transmission method based on ad hoc network, which comprises the following steps that: error-resilient coding is performed for a video file to be transmitted; forward error correction (FEC) codinge is used for the video file which is already processed in the error resilient coding; a two-circuit priority transmission method and a grading priority scheduling method are used for performing the data scheduling processing on the video file after the EFC coding; and the video file after the data calling processing is transmitted in a physical layer on the basis of bit stream. Due to the adoption of the design, the wireless network is better suitable for the transmission of multimedia data; by adopting the improved two-circuit routine transmission method, the routing selection can be more intelligently executed according to the specific requirement of the service, and when the requirement on the time delay is smaller, data with small time delay can be adopted for strict data; and when the time delay is not large, a more reliable router can be used for transmitting the data.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a video file data transmission method based on an Ad hoc network. Background technique [0002] In the past two decades, multimedia applications have penetrated into every field of life. Since the 1990s, the rapid development of broadband IP (Internet Protocol1) services such as interactive network television (IPTV), triple play (TriPlePlay) and video calls has set off a new wave of multimedia applications. The proposal and application of the third-generation mobile technology (3rd-generation, 3G) and beyond third-generation mobile technology (Beyond ThirdGeneration, B3G) technology have solved the bottleneck problem of bandwidth, which plagued the development of wireless networks. [0003] Ad hoc network is a self-organized multi-hop wireless network without any center. It does not use any existing fixed facilities as the basis and can form a temporary network anytime and...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L29/08H04L1/00H04W28/02
Inventor 杨艾琳刘海亮罗笑南
Owner RES INST OF SUN YAT SEN UNIV & SHENZHEN
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