An experimental study on the mixing of two plane, unventilated, parallel jets reveals an instability characterized by sinuous ‘‘flapping’’ of the jets and enhanced mixing of the jets with the ambient fluid. The frequency and amplitude of the instability is shown to be a function of the jets’ spacing and momentum flux ratios, with the maximum mixing occurring for cases with matched momentum flux...

Over the past few years, modern mobile subscriber devices such as Smartphones, tablets and PDAs have become more and more popular which use network resources in a more aggressive way and last for longer durations involving dramatically increasing traffic volumes. But traditional mobility management schemes have hardly taken this issue into account. Distributed mobility management is considered ...

As deened in Wikipedia, Software Deened Networking (SDN) is about " decoupling the system that makes decisions about where traac is sent (the control plane) from the underlying systems that forward traac to the selected destination (the data plane) ". Such decoupling is very frequently meant to imply the physical separation between a smart (logically) centralized controller in charge of taking ...

In order to provide end-to-end QoS in B3G systems, based on the UMTS architecture, the DiffServ framework can be used in the data plane of the IP core network of the mobile access network. Among the different schemes proposed for the control plane of DiffServ, the Internet2 bandwidth broker approach has been chosen for its centralized management nature, which is needed to coordinate QoS between...

Today’s mobile customers desire to remain connected anywhere, at any-time and using any device. This phenomenon has encouraged the mobile network operators to build complex network architectures by incorporating new features and extensions, which are harder to manage and operate. In this paper, we propose a novel and simplified architecture for mobile networks. The proposed architecture, which ...

The Software-Defined Networking (SDN) separates the control plane from the data plane to increase the flexibility. In the data plane, the unavailability of data forwarding is a common problem preventing a switch from configuring a new arrival flow into its flow table. When the burst flows arrived at the switch, the flow table can be consumed, causing the unavailability occurred. However, the pr...

Separation of control and data planes (SCDP) is a desirable paradigm for low-power multi-hop wireless networks requiring high network performance and manageability. Existing SCDP networks generally adopt an in-band control plane scheme in that the control-plane messages are delivered by their dataplane networks. The physical coupling of the two planes may lead to undesirable consequences. To ad...

Software Defined Networks (SDN) have been proposed for use in applications of the Internet of Things (IoT), termed as software-defined IoT (SD-IoT) network, because of the popularity and capability of mobile devices being used for networking in relatively large areas. However, a single controller in SDN has a limited request-processing capability, so a distributed control plane with multiple ph...

The abundance of computing technologies and devices imply that we will live in a data-driven society in the next years. But this data-driven society requires radically new technologies in the data center to deal with data manipulation, transformation, access control, sharing and placement, among others. We advocate in this paper for a new generation of Software Defined Data Management Infrastru...