This paper proposes a procedure for constructing the membership functions of the performance measures in a finite capacity loss queuing system with arrival rate and service rate being fuzzy numbers. To investigate the performance measures of the finite capacity loss queuing system a pair of mathematical non linear programme are formulated to calculate the upper and lower bound of system charact...

Conventional IP routers are passive devices that accept packets and perform the routing function on any input. Usually the tail-drop (TD) strategy is used where the input which exceeds the buffer capacity are simply dropped. In active queue management (AQM) methods routers manage their buffers by dropping packets selectively. We study one of the AQM methods called as random exponential marking ...

Article history: Received 18 February 2009 Received in revised form 4 August 2009 Accepted 1 September 2009 Available online 6 September 2009

Article history: Received 5 June 2012 Received in revised form 15 February 2013 Accepted 4 March 2013 Available online 16 March 2013

In this paper we study a multi-server queue with single Vacation (e,d)policy using DSW (Dong, Shah, Wong) algorithm. Vacation rate is fuzzy number. Approximate method of extension namely DSW algorithm is used to define membership functions of the performance measures. It is based on the αcut representation of fuzzy sets in a standard interval analysis. Numerical example is given to test the fea...

Active Queue Management( AQM) is an efficient tool in the network to avoid saturation of the queue by warning the sender that the queue is almost full to reduce its speed before the queue is full. The buffer management schemes focus on space management, in the other hand scheduling priorities (focusing on time management) attempt to guarantee acceptable delay boundaries to applications for whic...

The excessive rate of patients arriving at accident and emergency centres is a major problem facing South African hospitals. Patients are prioritized for medical care through a triage process. Manual systems allow for inconsistency and error. This paper proposes a novel system to automate accident and emergency centre triage and uses this triage score along with an artificial intelligence estim...