Wireless sensor network gateway optimization deployment method
A wireless sensor and network gateway technology, applied in the field of gateway optimization deployment, can solve problems such as less research work, large gateway coverage radius, and local optimal traps.
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[0044] This embodiment provides an optimal deployment method for a wireless sensor network gateway. K gateway nodes are set in a wireless sensor network G with n sensor nodes, and the adjacency matrix of G is A=(e ij ) n×n , the shortest distance matrix is D=(d ij ) n×n , d ij Indicates slave node v i route to v j The required minimum number of hops, the shortest distance matrix is obtained by the Floyd algorithm; node v i select gateway u k As its service gateway, it meets the requirements of formula (1):
[0045] d(v i , u k )≤d(v i , u l ), k, l≤K, j≠l (1)
[0046] In the formula: v i contained in the gateway u k service set U k in, that is, v i ∈ U k , u k with service set U k The maximum distance between nodes in gateway u k The coverage radius of ; the largest coverage radius among all gateway nodes called the gateway set {u k} K coverage radius;
[0047] The wireless sensor network gateway optimal deployment method makes the coverage radius...
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