Our first use case illustrates how new QoS schemes could be introduced in existing networking infrastructures using the network virtualization concept.
Opportunistic networks have recently been proposed as an appealing solution to offload content with non-real time constrains, where, instead of using the cellular network infrastructure, mobile users can retrieve content from collocated peers [103].
Since they can forward packets on behalf of other nodes and run user applications, they are connected via wireless links without using the existing network infrastructure or centralized administration.
The required signaling information between the macrocell and femtocells may be exchanged through two main possibilities: i) the backhaul connection using the core network infrastructure (optic fiber), through the S1 interface and femtocell gateway [22,23] and ii) the direct X2 interface between macrocells and femtocells [3].
Using the current information about the network infrastructure, the users, the servers, the domain, and even the workstations, a project team can build the Active Directory.
As buildings become more automated, their control systems (such as lighting; heating, ventilation, and air conditioning; facility access; intrusion detection; electronic signage; and landscape irrigation) use the same network infrastructure to enable interoperability of systems, and along with the tremendous operational benefits come additional security and safety concerns.
Other methods of securing the network infrastructure include the use of Secure Sockets Layer (SSL), which is widely implemented to secure Websites.
Its first aim is to help connect Wall Street financiers with their back operations in nearby New Jersey, but the hope is that other industries — from healthcare to critical infrastructure — will soon use the network for their own secure communications.
"But they've abruptly expanded the way they use the networks, turning their content-hosting infrastructure into a search infrastructure as well".
