Low-power-consumption wide-area multi-hop networking method and system based on software definition

Abstract

The invention introduces a software defined network (SDN) technology into a low-power-consumption wide-area multi-hop network, and completes dynamic networking and flexible transmission of the networkthrough design and implementation of links such as topology discovery and maintenance, flow table generation and issuing and the like. Through control and data transmission decoupling of the network,software definition, flexibility and controllability of the network transmission process are realized, and meanwhile, the routing overhead of common sensing nodes is effectively reduced by adopting acentralized control algorithm, so that the routing success rate and the network stability are improved. The networking and transmission method provided by the invention is essentially different fromthe traditional routing-based networking method. According to the software defined network idea based on centralized control and numerical control separation, the advantages of a traditional softwaredefined network and the requirements of a wireless multi-hop network can be well met, and convenience is brought to the network management, centralized network configuration and the like of the wireless multi-hop network.

Description

technical field [0001] The invention relates to the field of low-power wide-area network networking, in particular to a software-defined low-power wide-area multi-hop networking method and system. Background technique [0002] Low-Power Wide-Area Network (LPWAN) technology, as an emerging hot technology in the field of IoT, makes up for the shortcomings of existing communication technologies such as Wi-Fi and Zigbee in terms of power consumption, transmission distance and network cost. The board, its system receiving sensitivity reaches -148dBm, supports long-distance communication over 15km, the device receiving current is only 10mA, the sleep current is less than 200nA, and the device battery life can reach more than 5 years, providing a powerful solution for low-cost interconnection in large areas. Technical support and new solutions. [0003] The general low-power wide-area communication network is mainly networked through a star structure, and the terminal and the gate...

AI Technical Summary

Problems solved by technology

In the face of terminal changes and explosive growth of applications, the traditional routing protocol-based networking and transmission methods cannot realize flexible control and management of the network, and cannot perform complex configuration and interactive operations of terminals and protocols.

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