Handan Key Laboratory of Optical Fiber Communication and Broadband Access Technologies

Handan, China

Handan Key Laboratory of Optical Fiber Communication and Broadband Access Technologies

Handan, China

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Zhao J.-J.,Hebei University of Engineering | Zhao J.-J.,Handan Key Laboratory of Optical Fiber Communication and Broadband Access Technologies | Gu Z.-Q.,Hebei University of Engineering | Gu Z.-Q.,Handan Key Laboratory of Optical Fiber Communication and Broadband Access Technologies | And 6 more authors.
Zidonghua Xuebao/Acta Automatica Sinica | Year: 2015

Considering flow routing rate, clustering rules, and resource consumption of network bandwidth, in this paper, we propose a routing algorithm based on topology control and resource allocation in heterogeneous wireless sensor networks. The algorithm establishes a model on flow rate balance in the network layer according to the rate allocation mechanism of the cluster heads and member nodes. In the link layer, an interference model is applied to analyze the sharing spectrum behavior and the resource reconfiguration. By introducing a bandwidth scaling factor ρ, the band is re-divided into several sub-bands, aiming at maximizing the utilization efficiency of frequency band resource. Based on the cross-layer design framework, we develop a mixed-integer nonlinear programming optimization problem to obtain the optimal clustering results and resource allocation scheme, while considering the networks topology and resource allocation. We evaluate the performance in a given network topology. The results show that the proposed routing algorithm can obtain the optimum match results and the optimal route while utilizing spectrum efficiently. Copyright © 2015 Acta Automatica Sinica. All rights reserved.


Xue L.,Hebei University of Engineering | Xue L.,Handan Key Laboratory of Optical Fiber Communication and Broadband Access Technologies | Chen X.,Hebei University of Engineering | Zhao J.-J.,Hebei University of Engineering | And 3 more authors.
Zidonghua Xuebao/Acta Automatica Sinica | Year: 2016

This paper proposes a minimal rigid network topology control algorithm called minimal rigid topology control (MRTc), which is based on Voronoi coverage and Delaunay triangulation, to meet application needs of good coverage and for energy saving. MRTc can accurately control node operative modes by which the target sensing area can be completely covered only with active nodes. On the basis of complete coverage, MRTc constructs a topology that is applicable to wireless sensor networks by exploiting the characteristics of Delaunay triangulation. The topology structure can effectively restrict the average node degree, and the structure is characterized by its fault-tolerance, spread ability, and sparsity. Furthermore, MRTc also introduces a power control strategy to minimize the energy consumption of sensor nodes without losing complete coverage in the sensing area. Simulation results are provided to validate this proposal. Copyright © 2016 Acta Automatica Sinica. All rights reserved.


Zhao J.-J.,Hebei University of Engineering | Zhao J.-J.,Handan Key Laboratory of Optical Fiber Communication and Broadband Access Technologies | Guo K.,Hebei University of Engineering | Guo K.,Handan Key Laboratory of Optical Fiber Communication and Broadband Access Technologies | And 4 more authors.
Tongxin Xuebao/Journal on Communications | Year: 2012

For the accurate assessment of physical impairments, the suppression or enhancement effect of self phase modulation (SPM) on group velocity dispersion (GVD) were analyzed. Then, a pulse width model based on their combined effects on signal distortion was proposed. This model considered the effects of combined physical impairments, and it was applied in the simulation of the impairment-aware routing and wavelength assignment (IA-RWA) algorithm. The results indicate that comprehensive consideration of the effects caused by combined physical impairments is conductive to accurately avoid more serious physical impairments during routing and reduces blocking rate.

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