基于多跳位置估计的无线光自组网拓扑重构

doi:10.3969/j.issn.1001-506X.2020.02.26

Abstract

Abstract:

A method of free space optical (FSO) communication ad hoc network topology reconstruction based on multi-hop position estimation is designed. This method is global positioning system (GPS) and radio frequency (RF) free, only uses FSO to estimate the direction and distance of neighbor nodes, and exchanges position estimation information through multi-hop mode to establish more FSO links which may increase the connectivity of network and improve the network transmission performance. The location uncertainty region between multi-hop nodes is analyzed and FSO new links are established by using the proposed beam allocation algorithm. The simulation results show that the relative positioning accuracy is determined by the beam divergence angle and the distance estimation error with the node size less than 20, and the end-to-end performance of the reconfiguration network node is affected. By reducing the divergence angle and improving the optical detection sensitivity, the performance of the method is close to that of the reconstruction method based on GPS positioning.

Key words: free space optical (FSO) communication, ad hoc network, multi-hop localization, topology reconstruction

CLC Number:

TN929.12

Wen YANG, Yue WANG, Jinming SHI, Jian YUAN. Topology reconfiguration of wireless optical ad hoc networks based on multi-hop location estimation[J]. Systems Engineering and Electronics, 2020, 42(2): 452-457.

Figures/Tables 8

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Topology reconfiguration of wireless optical ad hoc networks based on multi-hop location estimation

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