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Network virtualization is a promising solution that can offer more flexibility and prevent Internet ossification without requiring extensive network redesign. Using virtualization multiple heterogeneous virtual network (VN) architectures can cohabit on a shared physical network substrate. Virtualization can be used to run multiple different applications (e.g., operating systems, servers, networking...
NUM (Network Utility Maximization) problems have worked as an important approach to solve network deployment problem especially for network resource management. In existing literature, NUM model has been used to provision optimal network resource allocation. However, in practice, routing and transmission delay would not be ignored. Without routing, we would not achieve the “real” maximum utility....
In this paper, we address the problem of resource allocation with efficiency and quality of service (QoS) support in uplink for a wireless CDMA network supporting real-time (RT) and nonreal-time (NRT) communication services. For RT and NRT users, there are different QoS requirements. We introduce and describe a new scheme, namely the traffic aided uplink opportunistic scheduling (TAUOS). While guaranteeing...
In this paper, we address the problem of differentiated reliable shared path protection algorithm under shared-risk-link-group (SRLG) constraint in survivable wavelength-division-multiplexing (WDM) optical networks. Rather than the conventional complete SRLG-disjoint shared path protection, we introduce a heuristic partial SRLG-disjoint shared path protection algorithm (Pd-SPP) based on the concept...
A fault recovery system that is fast and reliable is essential in survivability design in wavelength-division-multiplexing (WDM) mesh networks. Pre-configuration cycle (p-cycle) benefits both the fast recovery time and the efficient resource utilization. Finding good candidate p-cycles is the first and very important step in p-cycle design. The node-encircling p-cycle can protect not only the on-cycle...
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