Internetworking Transmission in Cells Loss Designing MPLS and ATM Networks

ATM is the new generation of computer and communication networks that are being deployed throughout the telecommunication industry as well as in campus black bones. OPNET is a CAD tools which is specialized in communication protocols and networks. We examine its performance and its effect on the traffic pattern in an ATM network. In this paper we also report the studies of simulation efficiency and network performance of simulated network using firewall

Traffic Control and Distributed Optimization Routing Problems in ATM Networks

Aggressive research as gigabit network has led to dramatic improvements in network transmission speeds. One result of these improvements has been to put pressure on router technology to keep peace. This paper describes a router nearly completed. This is more than fast enough to keep up with the latest transmission technology. This router has a back place speed of 50 gigabit and can forward tens of millions packet.Scheduling algorithm can be implemented on CVAR applications but in this research scheduling is implemented on CBR applications and the performance on WLAN network is enclosed by delivering different traffic load. QOS parameters [5] will be considered as the performance metrics on this study. The comparative study of various algorithms can show the best scheduling algorithm in WLAN with CBR applications.ATM was the focus of action research and significant investment in the early to mid 1990’s. This paper discuss several visions for ATM prevalent at the time and analyses how ATM evolved during this period this paper also consider the amplifications of this history for current connection oriented technologies such as optical transport network and MPLS

QOS Reliability and Improvement for Congestion Probability Routing in ATM Networks

The other primitives for switch management and control are borrowed heavily from the specified protocol. They include priority for switch configuration port and switch management VP management and permanent measurement. The protocol was implemented and integrated with the OPNET platform. Without going into specifies of the protocol we describe its design principles and show how it has affected in the protocol. Traditional connection switches include an embedded processor that implements both the switch control and network signaling. The objective of CAC is to keep the network load moderate to achieve a performance objective associated with QOS. Cell loss ratio a key QOS parameter in ATM networks is essential for proper network resources dimensioning, congestion control , bandwidth allocation and routing. Keywords: Quality of Service, Servicing Monitoring

Evaluation of MPLS Framework Congestion Control for Planning and Optimization in ATM Networks

Recent Advances in MPLS have led to development of real-time applications. Many routing protocols have been specifically designed for these applications where real-time guarantee is an essential design issue. Real-time MPLS is an existing area of research. The common objective is trying to provide timeless guarantee for resource constrained MPLS. MPLS is emerging as a flexible technology that can transport voice,. IPV4 , IPV6 layer 2 services and even PDH and SDH/SONET circuit over a single packet infrastructure in a new attempt to solve the old problem of new network convergence. MPLS traffic emerging QOS support and fast restoration capabilities can be used to provide each service with strict service level arguments in a cost efficient way several standardization and industry organization are contributing to this goal. Keywords: Congestion Control, MPLS

Internet Traffic Control System and Mobile Broadband Communication System in ATM Networks

MPLS is an advanced forwarding scheme which allows the network to achieve the benefits provided by traffic engineering techniques. The establishment of an end to end LSP between two IP/MPLS networks inter connected through an ATM backbone is still an open issue. This focuses in an MPLS ATM environment and address problem of provisioning a fast LSP establishment with certain QOS between 2 MPLS sub networks inter connected through an ATM backbone. The PNNI is used in ATM backbone as a routing and signaling protocol. In order to achieve the paper objectives and new PNNI elements are defined and evaluated. Voice has been the primary application in wireless network to date. However packet based application and higher bandwidth requirements to sustain these applications are ever emerging. As in wire line packet based networks while IP routing is well understood IP network by itself is still not achieved and its depart on the backbone that can offer QOS guarantee. MPLS is a newer technology that offer service information layer 2 switching and connection oriented that allows traffic engineering control traffic flows in the network. The purpose of it to show how MPLS QOS Architecture can be employed to provide traffic engineering in broadband wireless network. Keywords:  Multiservice traffic, Mobile Broadband system

Cell Multiplexing and Adaptive Scheduling for Wide Area ATM Networks

The ATM UBR, GFR over ABR service categories have been designed for data. However several studies have responded poor TCP performance over satellite ATM resources. We first discuss the various design options available for TCP end systems, IP-ATM switches for long latency connections. We discuss the buffer management policies generated and rate services and the virtual stores destination options in ATM. We present comparison of ATM service categories for TCP transport over satellite links. Keywords: Video Teleconferencing, Adaptive Schedulin

EP BASED PSO METHOD FOR SOLVING PROFIT BASED MULTI AREA UNIT COMMITMENT PROBLEM

This paper presents a new approach to solve the profit based multi area unit commitment problem (PBMAUCP) using an evolutionary programming based particle swarm optimization (EPPSO) method. The objective of this paper is to maximize the profit of generation companies (GENCOs) with considering system social benefit. The proposed method helps GENCOs to make a decision, how much power and reserve should be sold in markets, and how to schedule generators in order to receive the maximum profit. Joint operation of generation resources can result in significant operational cost savings. Power transfer between the areas through the tie lines depends upon the operating cost of generation at each hour and tie line transfer limits. The tie line transfer limits were considered as a set of constraints during optimization process to ensure the system security and reliability. The overall algorithm can be implemented on an IBM PC, which can process a fairly large system in a reasonable period of time. Case study of four areas with different load pattern each containing 7 units (NTPS) and 26 units connected via tie lines have been taken for analysis. Numerical results showed comparing the profit of evolutionary programming-based particle swarm optimization method (EPPSO) with conventional dynamic programming (DP), evolutionary programming (EP), and particle swarm optimization (PSO) method. Experimental results shows that the application of this evolutionary programming based particle swarm optimization method have the potential to solve profit based multi area unit commitment problem with lesser computation time

Characterization of a newly synthesized organic nonlinear optical crystal: benzoyl valine

Herein the synthesis and the crystal growth of benzoyl valine (BV), an organic nonlinear optical (NLO) material for frequency conversion was grown by slow evaporation solution growth technique at room temperature has been reported. The compound was prepared by Stockman method of benzoylation. The solubility curve shows linear nature up to a temperature of 313 K. XRD study reveals that the crystal belongs to monoclinic system with P21 non-centrosymmetric space group. The fundamental vibrational frequency of various functional groups (400-4000 cm-1) in the crystal was determined from FTIR analysis. 1H and 13C NMR spectral studies reveal the presence of proton and carbon network in the grown crystalline sample. The optical behaviour of the crystal was ascertained by optical UV absorption spectral studies. The UV cut off region (λmax) lies around 200 nm and the crystal is absolutely transparent from 220–800 nm suggesting its application as NLO material. The thermal stability of the crystal was determined by thermogravimetric and differential thermal analyses. Laser damage threshold of BV was found to be 0.34 GW/cm2 and hence BV can be used in frequency doubler system. Photoconductivity study of BV revealed negative photoconductiviting nature of the sample. The microhardness studies confirm that BV has a moderate Vickers hardness number (VHN) value in comparison to the other organic NLO crystals