Video file data transmission method based on ad hoc network

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...

AI Technical Summary

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 Rate, BTR) to vary with channel conditions; the other is to use transmission that guarantees stable delay and bit throughput rate method, but errors occur when the channel deteriorates

2 This model can further optimize the path transmission and congestion control of wireless routing, but the security is not enough, and it cannot solve the problems of multipath fading, masking effect, and signal interference.

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