Immune Algorithm for Solving the Optimization Problems of Computer Communication Networks

The basic problem in optimizing communication networks is to assign a proper circuit for each origin destination pair in networks so as to minimize the average network delay, and the network optimal route selection model is a multi constrained 0 1 nonlinear programming problem. In this paper, a new stochastic optimization algorithm, Immune Algorithm, is applied to solve the optimization problem in communication networks. And the backbone network vBNS is chosen to illustrate the technique of evaluating delay in a virtual network. At last, IA is compared with the optimization method in communication networks based on Genetic Algorithm, and the result shows that IA is better than GA in global optimum finding.

Improving the Reliability of Computer Communication Networks

For networks that are directed or can be represented by a directed network,reversing one or more of the uni-directional links may provide the ability to reconnect a network that has been disconnected by link failure, In this paper,a new approach to reconfigure such networks is proposed.We develop a linear time algorithm which,when reachability has been destroyed by the removal of a single link,optimally restores teachability through the reversal of selected links.Multi-link failure reconnectability is discussed and an algorithm with polynomial complexity is given which provides a nearly optimum solution to reconnect the network.We show that the reliability of a network that allows reversals is at least twice more than that in which reversals are not permitted.Unfortunately,the reconnection of some networks cannot be established.Therefore,we discuss the maximization of reachability of such networks so that each node can reach maximum number of the other nodes.

The 23rd International Conference on Computer Communication and Networks (ICCCN 2014)

August 4-August 7, 2014 Shanghai, China http:/www.icccn.org/icccn14/ICCCN is one of the leading international conferences for presenting noel ideas and fundamental advances in the fields of computer communications and networks. ICCCN serves to foster communication among researchers and practitioners with

Modeling of Intelligent Integrated Network Management System Using Object Oriented Approach *

The concept of intelligent integrated network management (IINM) is briefly introduced. In order to analyze, design and implement IINM successfully, object oriented approach is testified to be an effective and efficient way. In this paper, object oriented technique is applied to the structural model of IINM system, The Domain object class and the MU object class are used to represent the manager and the managed resources. Especially, NM IA is introduced which is a special object class with intelligent behaviors to manage the resources efficiently.

A Neural Network Approach to Computing the Delay and Flow Assignment of Computer Communication Networks

in this poper, the delay cia computer communication network as the average end-to-end delay ofpackets in the network is studied. The problem of computing the minimum delay and flow assignment of acomputer network is a coinbinatorial-optimization one. Further analyses show that it can approximate to a quadratic programing problem. To solve the problem, a new network model featuring global con vergence is used. The simulation results demonstrate the new method is feasible and effective.

A project plan for construction and cabling of picture archiving and communication system network

Objective To determine a network solution to meet the network requirements of the heavy data flow, load balance, and potential network storms from expansion of picture archiving and communication system (PACS) application.Methods Intel Netstructure 480T Giga Switch was used as the main switch and connected to each building by fiber channel at 1 Giga speed to archive 100 MB/s to each port. At the same time, the in-dependence of the original network construction was physically kept. The layer 3 and 4 switchers were used as load balance to reduce the heavy load of the network, and all the cabling for PACS used the super CAT5 along with the Intel NetStructure 1520 to prepare for potential network storms.Results An advanced intranet was set up to fully meet the high standard requirement of the PACS. The foundation for upgrading the whole network system to 1 Giga application was built to achieve sharing and transmission of images, information, and patient data within the hospital. The base was established for the standardized management of the hospital.Conclusion Good planning is the first step in setting up PACS, and the equipment forms the necessary platform to run PACS and all kinds of hospital information system (HIS). The networking construction is the foundation of e-hospital.

Effective Packet-level FEC Software Coding

This paper introduces an effective software-based FEC redundant packets generating algorithm. The algorithm is based on Reed-Solomon coding over Galois Field. By operating on words of packets and performing polynomial multiplication via lookup tables, software coding efficiency is achieved to satisfy the needs of most of computer network applications. The approach to generate lookup tables is detailed.

BusTechn

Introduced the characteristics of series communicat io n I 2C bus and basic communication protocol, and introduced the application of the bus I 2C according to the image sensor OV7610.The computer correspondence s tyle can be divided the parallel correspondence and the series correspondence. T he rate of series correspondence is rapid, and the property of real time is exce llent. Because the number of ports which it takes is great, it is not proper to miniaturize. Whereas the rate of series correspondence is low, but when the corr espondence of data is not great, it is simpleconvenient and agile to dispose t he circuit. Commonly series correspondence divide synchronization correspondence and asynchronies correspondence. The standard of interface RC232 is series asyn chronies correspondence. Recently the standard of bus I 2C is adopted widely in the micro-electronics correspondence realm, it is a special form of synchr onization correspondence. I 2C bus is a two-cabledouble-direction series co rrespondence bus. The address of the machine is set in hardware, and software pe rform the search of the address instead of hardware. So it reduce the number of the corresponding cable, moreover it predigest the design of the hardware. It resolve many interface problems in design of numeric circuit. More and more se miconductor manufacturer accept the standard. Its characteristics can be listed as followed. In text, the image sensor OV7610 is introduced as the example the bus I 2C appl ication.