Software-Defined Networks (SDN) has emerged as a dominant programmable network architecture for cloud based data centers. Its centralised control plane decoupled from the with global view of state provides new opportunities to implement innovate security mechanisms. This research Ieverages this features SDN and presents hierarchical Iightweight Intrusion Detection System (IDS) software enabled networks by exploiting concept flows. It combines advantages flow-based IDS packet-based in order...

With the growing popularity of cloud computing number service providers and services have significantly increased. Thus selecting best becomes a challenging task for prospective users. The process involves various factors such as characteristics models services, user requirements knowledge, level agreement (SLA), to name few. This paper investigates into selection tools, techniques by taking account distinguishing services. It also reviews analyses academic research well commercial tools in...

Cloud service selection is complicated by the prospect that there exist a large number of services and each characterized multiple QoS attributes. Various commercial tools have been developed in order to help cloud consumers with selecting best services. This paper provides an in-depth analysis three as well way they represent Accordingly, it proposes new model succinctly represents attributes which can easily use (and understand) when The proposed also classifies into four main categories...

In a SDN network model, the robustness, scalability and reliability requirement of control plane makes it an ideal candidate for being hosted on cloud infrastructure. addition, performs large volume data processing from packet headers to monitoring in order provide adequate level QoS traffic. The realization based networking approach is predominantly dependent performance controllers environment. This paper presents comparative study between locally controller within enterprise with remote...

Social media application are becoming multimedia centric with live and stored video, audio, augmented reality, haptic, etc. emerging as the main categories of traffic. Their QoS requirements more stringent than their legacy counterparts. At carrier level, Software Defined - Wide Area Network (SD-WAN) is one promising technologies for transporting these A SD-WAN will typically have a mesh centralized controllers managing networking infrastructure. Reliable operations key requirement...

A Service Provider has different methods to provide a VPN service its customers. But which method is the least complex implement? In this paper, two architectures are described and analysed. Based on analyses, of complexity calculation designed evaluate architecture: first evaluates resources consumed, second number cases possible.

This paper focuses on the firm real-time requirements of Time-Critical Wide Area Measurement and Control systems, that are expected to play a major role in future Smart Grids. It analyses operation these systems identifies their communication traffic characteristics. shows characteristics significantly different those current near applications provide visualization support manual grid control. then discusses performance evaluation time critical presents second stage an ongoing body work...

Using credit cards is a convenient and efficient payment mechanism. Credit card fraud significantly impacts financial loss, mental health, the reputation of institutions. This study would incorporate an analysis preceding statement about eliminating several obstacles associated with availability public data, presence unbalanced dynamic nature tendencies, prevalence false alarms. The authors discuss various machine-learning techniques used to detect fraud. Extreme Learning, Decision Trees,...

This paper presents a simulation study into the problem of conveying Internet protocol (IP) packets over an asynchronous transfer mode (ATM) network in cases where quality service (QoS) is important consideration. The main focus work on mapping IP packet flows onto ATM cell streams, particularly for purpose maintaining QoS requirements continuous media (audio and video) traffic. Simulation models two different flow-mapping scenarios are described, results evaluation process presented. These...

Estimates show that a significant proportion of future ICT related energy consumption will be from Cloud Computing. Based on detail analysis and survey optimization trends in cloud computing, this research presents comprehensive end-to-end model facility extending the end-user equipment to data center facility. The is subdivided into three planes four associated layers depicts cross-plane cross-layer relationships between components terms potential areas provides reference framework for...

This paper addresses the challenge of developing communications architecture for Smart Grid. It considers similarity between QoS requirements Grid communication and those addressed by previous work into multiservice networks Architectures. discusses this within context identifies contribution it could make to development architecture.

Traffic consists of N classes arriving at a finite capacity message system in bursty fashion. An overload control scheme is proposed which aims to maintain strategic reserve buffers for the higher priority traffic classes. Associated with each class are two thresholds: blocking threshold U/sub i/ and resume L/sub i (i=1, ..., N). At epoch when buffer occupancy level reaches i, blocked will admission if decreases (L/sub i/<U/sub i/). The problem Poisson arrivals general distributed service...

This paper addresses the challenge of developing an architecture for smart grid with particular focus to support communication. It considers system in general identify relationship between power distribution and communication networks, then focuses mainly on requirements. observes similarity quality service (QoS) requirements communications those identified multiservice networking. reviews principles open introduces architectures that have been enhanced meet multiservice. discusses previous...

This paper presents the development and evaluation of a model for mapping quality service (QoS) requirements traffic characteristics aggregated IP flows belonging to multiple classes continuous media (audio video) sources onto single ATM virtual channel (VC) that is also shared with number data classes. was developed as part wider range research activity focused on supporting QoS in future networks. The presented this offers improvements an earlier used "idealized" scheduler validated only...

Real-time peer-to-peer (P2P) streaming video traffic will constitute a significant proportion of future Internet traffic. With the availability WiMAX, large number these peers be ubiquitous and located on WiMAX based mobile nodes across Internet. This chapter proposed framework for providing quality service (QoS) to overlay P2P network over infrastructure. The work integrates engineering analytical approach has been validated with results from experiments.