Zivkovic, M., Nikolic, B., Protic, J., & Popovic, R. Improvement of range-free localization technology by a novel DV-HOP protocol in wireless sensor networks. IEEE Transactions on Industrial Electronics, 60(12), 5811–5819. Understanding error propagation in multihop sensor network localization. Prove that the HMCS-D algorithm effectively improve the node localization accuracy, reduce the positioning error and without affecting the hardware cost. Simulation results show that compare with DV-HOP and cuckoo search DV-HOP algorithm, the average positioning error of HMCS-D algorithm decrease 39.7%, 10.6% respectively.
Finally, introduced hybrid cuckoo search which can dynamically adjust the search step size and using the search algorithm to calculate the node coordinates instead of the maximum likelihood estimation method. Then according to the weight of each anchor node to select average jump distance of unknown nodes. The nodes of the hop neighbor nodes in the network are divided into three disjoint subsets and the distance between the nodes is estimated according geometric method. The algorithm using the correction factor to correct the number of hops that can reduce the error caused by the recording inaccurate minimum hops. An hybrid DV-HOP localization algorithm based on hop-count quantization anchor and modified cuckoo search (HMCS-D) is proposed. However, considering the problem of high localization error of DV-HOP algorithm in WSN. Distance vector-hop (DV-HOP) algorithm is range-free localization algorithm and has advantages of low overhead and can handle the case where a normal node has less than three neighbor anchors. Localization technology occupies a very important position in wireless sensor network (WSN).
0 kommentar(er)
