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A non-uniform clustering apteen routing method and network system based on ant colony in cwsn

A non-uniform clustering and routing technology, applied in the field of communication, can solve problems such as the increase in the number of dead nodes, the decline in the life cycle, hot spots, etc., and achieve the effect of prolonging the life cycle of the network

Active Publication Date: 2021-04-09
INNER MONGOLIA UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the existing technical problems, the present invention provides a non-uniform clustering APTEEN routing method and network system based on ant colony in CWSN, which solves the problem that the existing classical uniform clustering protocol will cause the cluster heads close to the base station to undertake more tasks , resulting in a "hot zone" phenomenon, which reduces the life cycle and increases the number of dead nodes

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  • A non-uniform clustering apteen routing method and network system based on ant colony in cwsn
  • A non-uniform clustering apteen routing method and network system based on ant colony in cwsn
  • A non-uniform clustering apteen routing method and network system based on ant colony in cwsn

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Embodiment 1

[0077] see figure 1 , figure 2 as well as image 3 , this embodiment provides an ant colony-based non-uniform clustering APTEEN routing method in a CWSN. The routing method optimizes the APTEEN algorithm for the problem that the APTEEN candidate cluster heads do not consider the remaining energy and the fixed competition radius. The method is optimized in two stages. In the first stage, during the candidate cluster head election process, the candidate cluster head is optimized, and the remaining energy is used as a factor of the candidate cluster head probability. The second stage optimizes the competition radius, which can effectively Improve network life cycle. Wherein, the routing protocol method provided in this embodiment includes the following steps:

[0078] Step S1, spectrum sensing is performed through the cognitive node; in this embodiment, authorized users are detected in this step, and the number of idle channels perceived by the cognitive node is used as a fac...

Embodiment 2

[0123] This embodiment provides an ant colony-based non-uniform clustering APTEEN routing method in a CWSN, which is simulated and applied on the basis of Embodiment 1. In this embodiment, the simulation is performed through the communication network simulation software OPNET, and the network layer model of the cognitive wireless sensor network is as follows Figure 4 As shown, any cognitive user is named rz i . The topological range of the cognitive wireless sensor network is 500m*500m, and 121 cognitive users are distributed. There are also 5 authorized users distributed in the figure, namely SQ 1 、SQ 2 、SQ 3 、SQ 4 、SQ 5 , any SQ i There is one licensed channel, and there are 5 licensed channels in total. The coordinates of the base station BS are (275m, 218m), which is located near the center of the area. The initial energy of any node is 25J, HT is 10, ST is 0.5, and the counting time is 600s. In order to avoid broadcast storm, the number of ants released by each c...

Embodiment 3

[0130]This embodiment provides a network system in OPNET based on an ant colony-based non-uniform clustering APTEEN routing method in CWSN. The network system includes a node layer model for authorized users and a node layer model for cognitive users. The node layer model of authorized users mainly includes source module 1, mac module 1, etc. The node layer model of cognitive users mainly includes source module 2, mac module 2, check module, and route module.

[0131] The function of each module contained in the authorized user's node layer model is as follows:

[0132] 1. Source module 1 is used to generate data packets;

[0133] 2. The mac module 1 is used to complete the group access channel and bind the frequency points used by authorized users;

[0134] The functions of each module contained in the cognitive user node layer model are as follows:

[0135] 1. Source module 2 is used to randomly generate data groups distributed between 0 and 100;

[0136] 2. The mac modu...

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Abstract

The invention discloses a non-uniform clustering APTEEN routing method and network system based on ant colony in a CWSN. The routing method includes the following steps: cognitive nodes perform spectrum sensing; calculate the probability of a candidate cluster head; judge whether the probability of a candidate cluster head is greater than Preset probability, if yes, make the i-th node a candidate cluster head; judge whether the remaining energy of the candidate cluster head is greater than the remaining energy of the candidate cluster head within the competition radius, and if yes, make i a cluster head; judge whether the cognitive node is consistent with The cluster head has a common channel; when the cognitive node and the cluster head have a common channel, the cognitive node requests to join the adjacent cluster head; judge whether the transmitted data meets the hard threshold and soft threshold, and if so, transmit the data to the cluster head through the cognitive node Cluster head; after the data is transmitted to the cluster head, the cluster head transmits the data to the base station through multiple hops. The invention adopts a non-uniform clustering algorithm to reduce the task amount of the cluster head close to the base station, prolong the network life cycle and reduce the number of dead nodes.

Description

technical field [0001] The present invention relates to a routing method in the field of communication technology, in particular to a non-uniform clustering APTEEN routing method based on ant colony in a CWSN, and also relates to a non-uniform clustering APTEEN routing method based on ant colony in a CWSN in OPNET network system. Background technique [0002] Cognitive wireless sensor network clustering routing protocols can effectively reduce the complexity of topology management. At present, most cognitive wireless sensor network clustering routing protocols are based on wireless sensor network clustering routing protocols, but cognitive wireless sensor network Spectrum dynamic changes in the wireless sensor network, it is necessary to add spectrum on the basis of wireless sensor network clustering routing protocol, in order to adapt to the cognitive wireless sensor network. [0003] APTEEN is a classic uniform clustering protocol, which can not only send data periodicall...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W40/32H04W40/10
CPCH04W40/10H04W40/32
Inventor 王树彬王彩青
Owner INNER MONGOLIA UNIVERSITY
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