Wireless network optimization method for intelligent meter reading system

Abstract

The invention discloses a wireless network optimization method for an intelligent meter reading system. The method is an improved dynamic routing allocation optimization algorithm. The method mainly solves the routing optimization problem of a wireless network layer, DSR is preliminarily optimized, the unrelated routing number in the DSR is increased, and the enhanced DSR optimization algorithm is provided. In order to solve the route selection problem in the enhanced DSR optimization algorithm, the minimum spanning tree thought is introduced into the DSR, a DSR optimization protocol based on a minimum spanning tree is provided, factors in multiple aspects of bandwidth, transmission congestion, network throughput and the like are comprehensively considered, simulation software NS-2 is used for simulation, and the result shows that the method can effectively shorten delay and improve data transmission efficiency and other indexes.

Description

technical field [0001] The invention relates to the technical field of wireless network optimization method design, in particular to a wireless network optimization method for an intelligent meter reading system that is fast, accurate, efficient and scalable. Background technique [0002] In recent years, WLAN has developed rapidly in the field of access. According to its huge data transmission rate, WLAN is considered to be a major competitor in the mobile data communication part. However, WLAN itself also has its shortcomings, the most important of which is that the coverage of the access point (AP) is relatively limited. If you want to provide wireless coverage in a relatively large area, you need to configure multiple APs in the area. Access points, thus increasing the cost of building a WLAN-based public broadband network. Although people have proposed some solutions, such as improving unlimited coverage and location adaptability through the coexistence of multiple wir...

AI Technical Summary

Problems solved by technology

[0006] (3) Periodic broadcast routing update messages will consume a lot of network bandwidth

This will put more pressure on the limited wireless channel bandwidth

[0007] (4) Periodic broadcast routing update messages will consume a lot of host energy

Every time a host in a wireless Mesh network sends a packet, it consumes the energy of the host. Compared with sending packets, receiving packets consumes less energy. However, due to the need to receive packets frequently, it is difficult for the host to enter the "sleep" energy-saving state.

In addition, the complex calculations required by some conventional routing protocols keep the CPU under high load all the time, which also consumes a lot of energy

This will put more pressure on the limited host energy

[0008] (5) Conventional routing protocols do not adapt to dynamically changing network topology

So it may cause such a situation: the wireless Mesh network host obtains the temporary topology structure of the network after spending a high price (such as network bandwidth, energy, CPU resources, etc.), and the result is in the middle due to the dynamically changing topology structure. Much of the content of becomes stale, and the protocol state is always in a non-converging state

It is precisely because the traditional routing protocols based on fixed networks cannot adapt to the needs of rapid changes in wireless network topology, so it is necessary to design routing protocols dedicated to wireless Mesh networks.

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