This article provides an effective method to analyze the performance measures of non-preemptive fuzzy priority queues with unequal service rates. Here arrival rate and are in numbers. Using a new ranking method, values reduced crisp values. For that cause, both Triangular Fuzzy Number (TFN) Trapezoidal (TpFN) chosen establish proposal's effectiveness. An illustration is given find efficiency qu...

The potential for being the target of Denial Service (DoS) attacks is one most severe security threats on Internet. Attackers have been modifying their attack format over years, damaging specific conditions operating systems and protocols in an attempt to deny or diminish quality service provided legitimate users. Nowadays, are stealthier mimic user traffic such a way that detection mechanisms ...

One of the major attractions of Asynchronous Transfer Mode (ATM) networks for transporting bursty video traac is its ability to exploit the multiplexing gains of packet switching while providing quality of service guarantees. Unfortunately, most of the multiplexing mechanisms proposed in the literature fail to exploit the multiplexing gains of ATM. In this paper we propose a multirate service m...

For the next generation mobile communication systems, all IP packet networks instead of the legacy networks that are mixture of circuit and packet switching services have been studied to guarantee the high-speed data transfer rate even in the high-speed mobile environments. In the packet networks, the rate that mobile users are serviced varies according to the number of users in a single cell. ...

Service Disciplines For Packet Switching Integrated Services Networks Hui Zhang Doctor of Philosophy in Computer Science University of California at Berkeley Professor Domenico Ferrari Chair Integrated services networks will provide the communication infrastructure in the future Unlike traditional communication networks which are designed to o er a single type of service integrated services net...

In this paper we develop a multi-objective model to optimally control the lead time of a multistage assembly system. The multistage assembly system is modeled as an open queueing network, whose service stations represent manufacturing or assembly operations. The arrival processes of the individual parts of the product, which should be assembled to each other in assembly stations, are assumed to...

This paper deals with finite capacity single server queuing system with vacations. Vacation starts at rate nu if the system is empty. Also the server takes another vacation if upon his arrival to the system, finds the system empty. Customers arrive in the system in Poisson fashion at rate lamda0 during vacation, faster rate lamdaf during active service and slower rate lamdas during the breakdow...