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We propose two heuristics for solving the path geodiverse problem (PGD), in which the calculation of a number of geographically separated paths is required. The geodiverse paths can be used to circumvent physical challenges such as large-scale disasters in telecommunication networks. The heuristics we propose for solving PGD have significantly less complexity compared to the optimal algorithm we previously...
The path geo-diversification mechanism introduced in this paper takes geographical diversity of physical network topology into consideration when making routing decisions. It enables the network to be more resilient against area-based challenges by exploiting nodes' multiple ingress and egress ports. It shows better performance compared to OSPF when the network is subject to area-based challenges...
This paper analyzes the sporting goods enterprises' problems from technology innovation and organizational innovation and proposes the countermeasures based on the theory of enterprises innovation ability. The study found that there are many problems within Chinese sports goods enterprises, for example, lack of independent intellectual property, brands and core technology, less innovation input, lack...
To tackle the drawback of Mesh Security Associations (MSA) launched by IEEE802.11s Working Group, this paper presents and elaborates an improvement, namely Proactive Security Protection Mechanism (PSPM), which simplifies key distribution through self-organized key management, while also ensuring routing security and channel security. Its effectiveness and efficiency are later explained and demonstrated...
Based on ISO standard 2631 and average absorbed power method, the data of half-load sand road test of EQ2050 are processed, and the overall weighted acceleration RMS and average absorbed power are calculated respectively. By using the least squares method, the relation between the two evaluation indexes is fitted and the estimation formula of average absorbed power is proposed. By changing the load...
In all-optical wavelength-division multiplexing (WDM) networks, splitters are used to realize multicast. The multicast-capable cross-connects are the cross-connects with passive power splitters in the all-optical network. Placing splitters at all of the nodes is considered to be expensive in the all-optical WDM network. Optimally selecting a subset of nodes to place the splitters can reduce the cost...
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