A new dual dynamic node hybrid flip-flop (DDFF) and a novel embedded logic module (DDFF-ELM) based on DDFF are introducing in this paper. The proposed designs eliminate the large capacitance present in the pre-charge node of several state-of-the-art designs by following a split dynamic node structure to separately drive the output pull-up and pulldown transistors. The aim of the DDFF-ELM is to ...

In this paper, the minimal backup reprovisioning (MBR) problem is studied, in which, the failure-independent path protecting pcycles (FIPP p-cycles) scheme is considered for single node-failure on WDM networks. After recovering the affected lightpaths from a node failure, the goal of the MBR is to re-arrange the protecting and available resources such that working paths can be protected against...

Two multicast protocols are proposed for deflectionrouted all-optical packet-switched networks. One scheme sends a deflected multicast packet back to the root node while the other sends it back to the deflection point. Both schemes can be implemented using demonstrated optical signal processing technology. The performance of the two proposed multicast schemes are compared using Manhattan Street...

In an IEEE 802.11 Infrastructure network, as the mobile node is moving from one access point to another, the resource allocation and smooth hand off may be a problem. If some reliable prediction is done on mobile node’s next move, then resources can be allocated optimally as the mobile node moves around. This would increase the performance throughput of wireless network. We plan to investigate ...

Today many high performance computers are collections of shared memory compute nodes with each compute node having one or more multi-core processors. When writing parallel programs for these machines, one can use pure MPI or various hybrid approaches using MPI and OpenMP. Since OpenMP threads are lighter weight than MPI processes, one would expect that hybrid approaches will achieve better perf...

For building an optical access network, we propose some new hybrid WDM/TDM passive optical network (PON) architectures that use wavelength selective switches (WSSs) at the remote node to improve flexibility, data security and power budget. Through simulations we demonstrate that the switching capabilities of a WSS can provide additional gains in terms of wavelength usage by a better statistical...

In this paper, we study the hybrid function projective synchronization between coupled complex discrete networks with different dimensions. The hybrid function projective synchronization is achieved by designing an adaptive control method. Based on the designed controller and the Lyapunov stability theory, we derive sufficient conditions to realize the hybrid function projective synchronization...

We consider the Critical Node Problem: given an undirected graph and an integer number K, at most K nodes have to be deleted from the graph in order to minimize a connectivity measure in the residual graph. We combine the basic steps used in common greedy algorithms with some flavour of local search, in order to obtain simple “hybrid” heuristic algorithm. The obtained algorithms are shown to be...

ÐIn a localized routing algorithm, each node makes forwarding decisions solely based on the position of itself, its neighbors, and its destination. In distance, progress, and direction-based approaches (reported in the literature), when node A wants to send or forward message m to destination node D, it forwards m to its neighbor C which is closest to D (has best progress toward D, whose direct...

Hybrid MPI/OpenMP and pure MPI on clusters of multicore SMP nodes involve several mismatch problems between the parallel programming models and the hardware architectures. Measurements of communication characteristics between cores on the same socket, on the same SMP node, and between SMP nodes on several platforms (including Cray XT4 and XT5) show that machine topology has a significant impact...