This paper presents an application of the simulated annealing heuristic to the problem of designing computer communication networks. This problem essentially consists in finding the least-cost network topologies that satisfies a given set of performance and reliability constraints. The results of the computational experiments show that simulated annealing is a suitable approach for solving this...

In today’s knowledge driven economy, knowledge is considered to be the key factor in defining the success of an organization. We have learned that knowledge is residing in the informal network of the organization. Hence, to improve performance, it is the informal knowledge network that should be examined and developed. For this purpose, social network analysis is increasingly applied in busines...

In this age of modern era, the use of internet must be maximized. Yeah, internet will help us very much not only for important thing but also for daily activities. Many people now, from any level can use internet. The sources of internet connection can also be enjoyed in many places. As one of the benefits is to get the on-line communication and computer networks modelling with discrete time qu...

Gathering places have long been recognized as important in spreading a variety of desirable and undesirable items. One of the initial moves by authorities to stop the spreading of plague in London was to close bars where people gathered at the end of the day. In view of the large number of individuals now using the Internet routinely for communication, the possibility of tapping individuals’ on...

Because of its simplicity, low channel setup times, and high performance in delivering messages, wormhole routing has been adopted in second generation multicomputing environments [13]. Furthermore, irregular topologies formed by ad-hoc interconnection of low cost workstations provide cost effective alternative to massively parallel computing platforms. Switches used in these networks of workst...

There has been recent interest in the use of broadband communication networks to implement distributed control systems (DCS). Such systems use a high speed local area network (LAN) to connect smooth dynamical systems (plants) with their computer controllers. DCS have appeared with increasing frequency in process control and power plant supervision[l]. There has been recent interest in packet sw...

The creation of covert channels in public computer networks can prove an effective means of information hiding and secret communication. With the widespread adoption of the Internet the TCP/IP suite of protocols have become pervasive, and therefore an attractive target for covert channel exploitation. This paper gives a brief overview of covert channels in communication networks, and presents a...

With the development of sensor, computer and communication, researcher attaches more attentions to research wireless sensor networks because its bright future in applications. This paper introduces structure, characteristics networks. Then, some key questions field are discussed based on basic principles. The end discusses application fields comes a conclusion.

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Multi-party Real-time Communication in Computer Networks Amit Gupta Doctor of Philosophy in Computer Science University of California at Berkeley The Internet has traditionally concentrated on availability: maintaining end-toend connectivity in the face of unreliable systems and network congestion. Many emerging applications, however, require predictable performance and support for multi-party ...