In ultra-dense networks (UDNs), distributed radio access points (RAPs) are configured into small virtual cells around mobile users for fair and high-throughput services. In this correspondence, we evaluate the performance of user-centric joint transmission (JT) in a UDN with a number of virtual cells. In contrast to existing cooperation schemes, which assume constant RAP transmit power, we cons...

Clusters of small-scale SMP/CMP nodes are becoming increasingly popular due to their cost-effectiveness. As these nodes are typically capable of supporting a number of network interfaces similar to the number of CPUs, the issue arises how to optimally configure the cluster for optimum communication performance. This paper evaluates a number of configurations on a 4-CPU Opteron cluster with mult...

In this paper, development of a semi-two- dimensional mathematical model called SDAR is introduced. The model is composed of two principal modules of hydraulics and sediment transport. The newly developed SDAR model has a number of capabilities including determination of sediment transport rate, aggradation - degradation calculation, longitudinal profile and lateral cross–sectional variation s...

This paper introduces a method that generates simulated multimodal input to be used in testing multimodal system implementations, as well as to build statistically motivated multimodal integration modules. The generation of such data is inspired by the fact that true multimodal data, recorded from real usage scenarios, is difficult and costly to obtain in large amounts. On the other hand, thank...

This paper presents flit-reservation flow control, in which control flits traverse the network in advance of data flits, reserving buffers and channel bandwidth. Flit-reservation flow control requires control flits to precede data flits, which can be realized through fast on-chip control wires or the pipelining of control flits one or more cycles ahead of data flits. Scheduling ahead of data ar...

In this paper, development of a semi-two- dimensional mathematical model called SDAR is introduced. The model is composed of two principal modules of hydraulics and sediment transport. The newly developed SDAR model has a number of capabilities including determination of sediment transport rate, aggradation - degradation&#10calculation, longitudinal profile and lateral cross–sectional variation...

The D ¯ D * scattering amplitude and the production of the final states π + π − J/ψ and π + π − π 0 J/ψ near the D 0 ¯ D * 0 threshold are discussed following the recent suggestion that the observed peaks X(3872) and X(3875) in the decays B → X K are due to a virtual state X in the D 0 ¯ D * 0 channel. The strong interaction is treated using the small interaction radius approximation. It is sho...

Datacenters for cloud infrastructure-as-a-service (IaaS) consist of a large number of heterogeneous virtual resources, such as virtual machines (VMs) and virtual local area networks (VLANs). It takes a complex process to manage and arrange these virtual resources to build particular computing environments. Misconfiguration of this management process increases possibility of security vulnerabili...

in recent years, virtual communities have been significantly popular and almost all of them are targeted for business profitability. in our study, the profitability of these communities for businesses has been analyzed from a commercial perspective. the study considers virtual community as a business model which can have a great impact on consumer purchase decision process. with respect to refe...