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In this paper, we design, implement, demonstrate the functions, and evaluate the performance of MiniReal — a real SDN network testbed built over an SDN bare metal commodity switch. Using MiniReal, one can partition an SDN bare metal commodity switch into several SDN slice switches and use Ethernet cables or optical fibers to connect these slice switches together to form any desired network topology...
In this paper, we design and implement a scheme to build an optimal spanning tree over a hybrid network composed of SDN and legacy switches. SDN is an emerging network technology and gradually gaining adoption worldwide. However, during the technology transition period, which may last several years from now on, inevitably SDN switches and legacy switches will need to coexist in a network. In a legacy...
In a brain network, weak and nonsignificant edge weights between nodes signal spurious connections and are often thresh-olded out of the network. The traditional practice of thresholding edge weights at an arbitrary value can be problematic. Network filtration provides an alternative by summarizing the changes in the network topology with respect to a broad range of thresholds. A well established...
Big-Data applications need to shuffle their data over a network in a very large amount. The ability to efficiently allocate network resources to quickly finish the shuffle greatly affects the overall processing speed of Big-Data applications. The recent emergence of software-defined networking (SDN) technology makes it easier for the network to integrate with a Big-Data application. The network can...
In the IEEE 802.16 centralized scheduling mesh network, the Base Station (BS) allocates minislots to each Subscriber Station (SS) for packet transmissions along a pre-constructed routing tree. Existing researches have shown that the network performance is highly dependent on the routing tree, which gives rise to a number of promising routing tree construction algorithms. In this paper we first compare...
In this decade, peer-to-peer (P2P) applications have emerged as popular tools for sharing data and they have gained much attention. Such P2P applications build overlay networks on top of existing infrastructure networks and disseminate data in a peer-to-peer manner. How well the P2P overlay network maps onto the underlying physical network topology can significantly impact P2P application performances...
Intelligent transportation systems (ITS) is an important research topic. One goal of ITS is to exchange information among vehicles in a timely and efficient manner. In the ITS research community, inter-vehicle communications (IVC) is considered a way that could achieve this goal without infrastructure support. An information network built on top of vehicles using IVC is a type of mobile ad hoc networks...
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