A Markov chain model for evaluating the performance of a multistage ATM switching fabric using split shared buuered switch elements (SE) is proposed. By comparing the results obtained from the proposed model and simulations, it is shown that the model is accurate in the presence of uniform and non-uniform traac in the switch. To eliminate the innuence of head of line blocking, a non-FIFO queuei...

To meet the networking requirements of the newer high-bandwidth multimedia applications, many LAN managers are starting to adopt switches as the basis of their network architectures. However, although introducing switches makes the networks faster, they can also introduce some new problems. These are caused by the interaction of the existing end-to-end flow control in end systems with the hop-b...

A model for the analysis of multistage switches based on shared bu!er switching for Asynchronous Transfer Mode (ATM) networks is developed, and the results are compared with the simulation. Switches constructed from shared bu!er switches do not su!er from the head of line blocking which is the common problem in simple input bu!ering. The analysis models the state of the entire switch and extend...

A model for the analysis of ATM switches based on shared buuer switching for Broadband ISDN networks is developed, and the results are compared with the simulation. Switches constructed from shared buuer switching elements (SE) no longer suuer from the head of line blocking which is a common problem in simple input buuering. The analysis models the state of the entire switch and extends the mod...

SCTP (Stream Control Transmission Protocol) is a new IETF transport protocol over the IP network. Transport protocol is responsible for reliable delivery of a message form a host to another host. We proposed and implemented an efficient file transfer system using the SCTP multiple file transfer and modified STCP congestion control mechanism to guarantees a stable data transfer with multi-stream...

We present a new Inter-Process Communication (IPC) mechanism and library. Ach is uniquely suited for coordinating perception, control drivers, and algorithms in real-time systems that sample data from physical processes. Ach eliminates the Head-of-Line Blocking problem for applications that always require access to the newest message. Ach is efficient, robust, and formally verified. It has been...

for different agronomic traits in sunflower (helianthus annuus l.) inbred lines were estimated using “line × tester” analysis method. six new restorer lines were crossed with four cms lines as tester in 2006 growing season. the 24 f1 single cross combinations were planted in complete randomized block design with four replications in khoy field research station in 2007 growing season. there were...

Abstract: This study is carried out to describe the behaviour of vehicles flow on the road, in the presence of blocking effects. A non-linear three dimensional system of ordinary differential equations is used to describe vehicles flow on the road. The study classify total vehicles population on the road into three compartments as Free – Slow – Released vehicles. The formulated model is well-po...

determining general and specific combining ability of lines is necessary to use them as parents of hybrid varieties. in addition, estimates of the heritability of characters helps in selecting suitable breeding methods and predicting genetic gains of the traits. to determine general and specific combining abilities and gene effects of agronomic characters, five cms lines and four restorer lines...