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Double optimized topology control method of energy consumption equalization and delay in heterogeneous wireless networks

A heterogeneous wireless network and energy balance technology, which is applied in network topology, wireless communication, energy consumption reduction, etc., can solve the problem of insufficient consideration of energy balance, compromise of maintenance cost and topology performance, and no consideration of delay optimization and other issues

Inactive Publication Date: 2014-09-03
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing related topology control technologies do not fully consider energy balance (for example, once the energy balance topology is formed, how long it can last, how to maintain it, and how to compromise between maintenance cost and topology performance, etc.), it does not consider the delay time optimization

Method used

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  • Double optimized topology control method of energy consumption equalization and delay in heterogeneous wireless networks
  • Double optimized topology control method of energy consumption equalization and delay in heterogeneous wireless networks
  • Double optimized topology control method of energy consumption equalization and delay in heterogeneous wireless networks

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Embodiment 1

[0163]This method can be used not only in an environment where network nodes are controllable deployed (such as a wireless sensor node deployed in a large port open-air freight yard area that doubles as an RFID cargo tag reader), but also in an environment where network nodes are uncontrollable deployed (such as field ecological environment monitoring ). For the latter, we first consider 100 nodes deployed in a 500×500m 2 The network formed on the planar area (that is, the node density in this area piece / m 2 , the position of each node obeys the Poisson distribution), and then consider the situation when the number of nodes is increased to 200 and 300 in the same plane area. In addition, deploy a sink node (i.e. base station) in the upper right corner of this area.

[0164] The base station has no energy limit, and the initial energy reserves of other nodes are random, but the maximum value does not exceed 0.5J. In order not to make the problem too complicated and to focu...

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Abstract

The invention discloses a double optimized topology control method of energy consumption equalization and delay in heterogeneous wireless networks. The method comprises the following stages: logic neighbor selection, link symmetrization and logic neighbor adjustment. For a heterogeneous wireless network, the first two stages are executed at the beginning of generation or update of a topology; and the logic neighbor adjustment is executed between two topology updates so as to extend update cycle of the topology and reduce update times of the topology. According to the double optimized topology control method of the energy consumption equalization and the delay in the heterogeneous wireless networks, both the energy consumption equalization and the delay are considered, and optimization of the network topology is achieved.

Description

technical field [0001] The invention belongs to computer network application and wireless network topology control technology, relates to a wireless sensor network topology control technology, in particular to a dual-optimized topology control method for energy consumption balance and delay in a heterogeneous wireless network. Background technique [0002] In the era of the Internet of Things, wireless sensor networks play a pivotal role in communicating the physical world and the information world. The sensor node with RFID reader function can read the RFID tag information on the objects within its wireless signal coverage in a non-contact manner, and transmit it to the information center in a multi-hop manner to realize the query, monitoring, and tracking of objects. Wireless networking is simple, easy to maintain, small initial investment, and easy to expand. However, the nodes are powered by batteries, and the energy reserves are limited. In some deployment environments...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/02H04W52/04H04W84/18
CPCY02D30/70
Inventor 桂劲松于敬晖
Owner CENT SOUTH UNIV
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