An Immune Clustering Coverage Optimization Method for Wireless Sensor Networks

Abstract

The invention discloses a wireless sensor network immunity clustering coverage optimization method, which comprises the following steps of performing immunity clustering optimization on a fixed node and immunity covering optimization on a mobile node, wherein the immunity clustering optimization on the fixed node comprises parameter initialization, first antigen recognition, node membership degree calculation, memory body generation, intersection and variation to generate a new generation of first antibody groups, condition termination discrimination, optimum solution output and in-cluster exchange of cluster head information; the immunity covering optimization on the mobile node comprises parameter initialization, second antibody and second antigen determination, target evaluation function value F(S) calculation on all second antibody members in a second antibody group, variation on the second antibody members in the second antibody group, condition termination discrimination, optimum solution output, communication of each cluster head node and mobile nodes in communication range. The wireless sensor network immunity clustering coverage optimization method has the advantages that the network maximum coverage is realized; further, the connectivity and fault-tolerance of the network are maintained; the method is applicable to large-scale irregular sensor networks.

Description

technical field [0001] The invention relates to the technical field of the Internet of Things, in particular to a wireless sensor network immune clustering coverage optimization method. Background technique [0002] Wireless sensor network is a kind of distributed network, which has the characteristics of non-central ad hoc network, dynamic change of network topology and limited energy, and the unpredictability of working environment, which will greatly reduce network coverage and node transmission reliability. For the distributed network, the first problem to be solved is the coverage of the network to monitor objects, which is the basis for the network to carry out monitoring work. The coverage problem can be regarded as the problem that network nodes achieve optimal allocation of network resources through their own location movement, perception direction change and communication routing selection under the constraints of various limiting factors, so as to further improve ...

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Problems solved by technology

[0002] Wireless sensor network is a distributed network with the characteristics of non-central ad hoc network, dynamic change of network topology and limited energy, as well as the unpredictability of the working environment, which will greatly reduce network coverage and node transmission reliability

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