Low power consumption directional broadcasting method aiming at wireless sensor network

Abstract

The invention provides a low power consumption directional broadcasting method aiming at a wireless sensor network. The low power consumption directional broadcasting method comprises the following steps of: 1. initializing a network topology; 2. dividing a sector region; 3. determining a sensing radius; 4. broadcasting directionally; and 5. carrying out route discovery. The low power consumption directional broadcasting method adds a directional broadcasting idea into an AODV (Ad Hoc Ondemand Distance Vector) route discovering way in an original routing protocol, only aims at broadcasting partial nodes in the ruled sector region and performs packet loss treatment on the nodes outside the directional broadcasting sector, so that the energy of the sensor nodes subjected to the packet loss treatment can be stored for the next application; and multiple network performances of the wireless sensor network can be improved by analyzing a DB-AODV protocol through a simulation experiment.

Description

technical field [0001] The invention relates to a directional broadcast strategy of a wireless sensor network. Background technique [0002] The limited energy of wireless sensor networks is one of the most important factors restricting wireless sensor networks. Once the energy is exhausted, it means that the nodes will fail, which may cause data loss or failure to transmit. Because wireless sensor networks often work in harsh or dangerous environments detection area, so it is very difficult to replace the battery. [0003] In recent years, the research progress of battery hardware has been relatively slow, and researchers have gradually shifted their direction to the research of network routing protocols. When the traditional AODV protocol mechanism needs to establish a route in the AODV protocol, the source node first broadcasts a routing request (Route Request, RREQ ) grouping. When an intermediate node receives a RREQ, it first establishes a reverse route to the previo...

AI Technical Summary

Problems solved by technology

[0004] The energy problem of wireless sensor networks has become a research hotspot and difficulty. The traditional wireless sensor network route discovery strategy uses the AODV protocol. The AODV protocol establishes routes by broadcasting route request messages to the entire network. Based on the direction, some unnecessary broadcasts will be formed

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