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A Design Method for Multi-Channel Opportunistic Routing Protocols in Cognitive Wireless Sensor Networks

A cognitive wireless sensing and routing protocol technology, applied in wireless communication, network topology, advanced technology, etc., can solve the problem of "no omnipotence", achieve high reliability of data transmission, and overcome the effect of instability

Inactive Publication Date: 2017-09-08
SHANGHAI JIAO TONG UNIV +1
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Problems solved by technology

[0006] Due to the diversity of structures and hardware, the complexity of the working environment, and the wide variety of application requirements, there is no "universal and universal" routing protocol for CRSN at present.

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  • A Design Method for Multi-Channel Opportunistic Routing Protocols in Cognitive Wireless Sensor Networks
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  • A Design Method for Multi-Channel Opportunistic Routing Protocols in Cognitive Wireless Sensor Networks

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Embodiment Construction

[0048] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0049] To improve the throughput of cognitive wireless sensor networks while considering the instability characteristics of wireless channels, we propose the Multi-Channel Opportunistic Routing Protocol (MCORP). Traditional opportunistic routing protocols are based on single-channel considerations, and most opportunistic routing protocols determine the priority order of competing nodes according to the expected number of retransmissions (ETX). In the present invention, the determination of the pri...

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Abstract

The invention provides a method for designing a multi-channel opportunistic routing protocol (MCORP) in a cognitive radio sensing network (CRSN). In the method, the priority orders of competitive nodes of each node are determined by weighing the residual electricity amount of the competitive nodes, and delivery ratio and ETX between the node and the competitive nodes thereof. The delivery ratio and the ETX of each link are obtained by calculating the average value of all channels in the network. Energy consumption is increased while a competitive node set is enlarged. In view of the finiteness of the energy of nodes, weighing is required to be considered between the delivery ratio and the energy when the value of the competitive node set is selected in order to decrease energy expenditure. For this purpose, the invention provides an evaluation index EDP (expected energy delivery ratio per joule) in order to weigh the relation of the delivery ratio and the energy. A simulation result further proves that the routing protocol provided in the invention has better performance than a multi-channel routing protocol (MCR) in aspects of throughput and data packet loss rate.

Description

technical field [0001] The invention relates to a routing protocol for cognitive wireless sensor network data communication, which belongs to the field of information technology. Background technique [0002] Multi-hop cognitive wireless sensor network (CRSN) has become more and more popular in the past decade because of its low cost, multi-field applications and efficient spectrum utilization. However, due to some characteristics of wireless channels, the throughput achieved by traditional routing methods is not ideal. [0003] Opportunistic Routing (Opportunistic Routing) is a relatively good technology used to deal with the unreliability of wireless channels, which is different from traditional deterministic routing protocols. Among the early works, the document "Exor: Opportunistic multi-hop routing for wireless networks (multi-hop opportunistic routing protocol in wireless networks)", in SIGCOMM'05, Philadelphia, Pennsylvania, Aug.2005 (in August 2005 SIGCOMM in Phila...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W40/04H04W84/18
CPCY02D30/70
Inventor 潘雄振吴呈瑜蒋铃鸽何晨田军
Owner SHANGHAI JIAO TONG UNIV
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