Zahia B.,Oran University |
Moufida M.,University of Lorraine |
Moufida M.,Nancy Research Center for Automatic Control
2014 6th International Conference on New Technologies, Mobility and Security - Proceedings of NTMS 2014 Conference and Workshops | Year: 2014
In this paper, we propose ZMR (ZigBee Multipath Routing), a novel hybrid multipath routing protocol for ZigBee/IEEE 802.15.4 networks. The main goal is to improve the global throughput which is basically insufficient in ZigBee-based Wireless Sensor Networks to satisfy high bandwidth requirements for high traffic applications like structure health monitoring systems, human health care systems and multimedia surveillance systems. The solution is based on the parent-child links and the availability of hierarchical address allocation process of the cluster-tree topology and the neighboring links. We compare our proposed multipath routing to the ZigBee one-path hierarchical tree routing TR through detailed simulations which showed that the proposed multipath routing enhances application performance in terms of effective bandwidth needed for high data rate applications, packet delivery ratio, incurred delay and network lifetime. © 2014 IEEE.
Heireche M.M.,University dOran El mNaouer |
Heireche M.M.,Oran University |
Belhadji M.,University dOran El mNaouer |
Belhadji M.,Oran University |
Hakiki N.E.,University dOran El mNaouer
Journal of Thermal Analysis and Calorimetry | Year: 2013
The non-isothermal crystallisation kinetics of Se90-xIn 10Sbx (x = 0, 1, 2, 4, 5) chalcogenide glasses prepared by a conventional melt quenching technique was studied using the differential scanning calorimetry (DSC) measurement at different heating rates 5, 7, 10 and 12 C min-1. The values of the glass transition temperature T g and the crystallisation temperature T c are found to be composition and heating rate dependent. The activation energy of glass transition E g, Avrami index n, dimensionality of growth m and activation energy of crystallisation E c have been determined from different models. © 2013 Akadémiai Kiadó, Budapest, Hungary.