In this paper, we propose and present a new access persistence control mechanism for packet cellular networks, such as General Packet Radio Service (GPRS) system, in order to improve the MAC layer performance. The MAC layer in GPRS make use of slotted ALOHA protocol combined with a specific retransmission mechanism to establish the physical connection. The main object of the new mechanism is to...

26 Connection Machine CM-1 routing network on 16 processors of an Intel iPSC/860, and on a simulation of a slotted-ring architecture that is executed on up to 64 processors of the Intel Touchstone Delta. Signiicant performance beneets are observed, and the eeectiveness of (and need for) dynamic remapping clearly demonstrated. Acknowledgements We thank Subhas Roy for his programming contribution...

Following the Northridge earthquake of 1994, a significant number of steel moment resisting structural systems were damaged. Several studies have been conducted to improve the seismic performance of steel structures and specially their beam-to-column connections. One of the proposed connections for special moment-resisting frames included AISC-358 is Kaiser bolted bracket moment connection, bri...

Considering the burst traffic shown in some new Internet applications of nowadays, in this paper, we propose a slotted connection oriented Internet service system with a release delay having an upper limit timer length . We build a batch arrival Geom /G/1 queueing model with a setup/closedelay/close-down strategy to characterize the system operation. We suppose the batch size to follow Pareto d...

In this paper, the mechanical behavior of three-phase inhomogeneous materials is modeled using the meso-scale model with lattice beams for static and dynamic analyses. The Timoshenko beam theory is applied instead of the classical Euler-Bernoulli beam theory and the mechanical properties of lattice beam connection are derived based on the continuum medium using the non-local continuum theory. T...

Wireless Local Loop (WLL) is an emerging technology that allows rapid connection to the wired network from remote locations. A crucial issue for WLL is the system design so that the number of subscribers can be maximized while providing the required quality of service. In this paper, we consider a broadband wireless local loop with fixed point users and we evaluate the subscriber capacity for a...