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WVEFC fast coding method based on flight ad hoc network

A fast coding and self-organizing network technology, applied in the field of fast network coding and network coding, can solve problems such as energy consumption, redundant forwarding of useless data packets, and increase of network burden, so as to save energy, optimize performance, and reduce large-scale computing the effect of time

Inactive Publication Date: 2018-04-20
NANJING UNIV OF SCI & TECH
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Problems solved by technology

Such data packets greatly increase the burden on the network, resulting in great redundancy and energy consumption of forwarding useless data packets

Method used

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  • WVEFC fast coding method based on flight ad hoc network
  • WVEFC fast coding method based on flight ad hoc network
  • WVEFC fast coding method based on flight ad hoc network

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Embodiment Construction

[0014] In the flight ad hoc network, the transmitted information is divided into two types, one is data information, and this type of information is generally sent from the sensor node to the central node. These data may have attributes that need to be encrypted, and the data can be encrypted by network coding and other methods, so that even if the eavesdropping node obtains a part of the encoded packets, it cannot decode any source data packets. The other type is control information, which is generally sent from the central node to the sensor node, and is used to adjust the deployment of the entire network in time to adapt to the change of the environment when the network environment changes. This type of information is generally just a simple control instruction and does not need to be encrypted.

[0015] If the traditional full-rank matrix network coding method is adopted, taking the Vandermonde extended matrix as an example, the control commands in it must be decoded after...

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Abstract

The invention discloses a WVEFC fast coding method based on a flight ad hoc network and aims at a characteristic that the requirements of different data packets in the flight ad hoc network for the real-time performance and the safety are different. According to the method, linear independence of a Vandermonde matrix is utilized, an expanded Vandermonde step coding matrix is constructed by takingthe Vandermonde matrix as a basic structure, and coding transmission is carried out on data by using the matrix. According to the method, the robustness of the flight ad hoc network is improved, and afinal discrete event simulation experiment also verifies excellent rapid delivery performance of coding.

Description

technical field [0001] The invention relates to a network coding technology belonging to the technical field of wireless communication, in particular to a fast network coding method with high real-time performance. Background technique [0002] The node mobility characteristic of the current flying ad hoc network brings the problem of unstable network transmission. The emergence of network coding provides a way to solve these problems. At present, the encoding methods of most network coding algorithms are based on random linear network coding. For random linear coding, its biggest disadvantage is that it cannot guarantee the linear independence of data packets. The source node has to send far more encoded packets than the source data packets to ensure that the destination node can successfully decode the source data packets. Such data packets greatly increase the burden on the network, resulting in great redundancy and energy consumption for forwarding useless data packets...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04W84/18
CPCH04L1/0002H04L1/0009H04W84/18
Inventor 韩晨杨余旺夏吉安王吟吟汪文娟
Owner NANJING UNIV OF SCI & TECH
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