Showing papers by "Romano Fantacci published in 1993"
TL;DR: It is shown that, depending on the implementation, the input queueing approach studied in this paper achieves the same performance as the optimum (output) queueing alternative, without resorting to a faster packet switch fabric.
Abstract: Modeling alternatives for a fast packet switching system are analyzed. A nonblocking switch fabric that runs at the same speed as the input/output links is considered. The performance of the considered approaches are derived by theoretical analysis and computer simulations. Performance comparison between input queueing approaches with different selection policies are presented. Novel input and output queueing techniques are also proposed. In particular it is shown that, depending on the implementation, the input queueing approach studied in this paper achieves the same performance as the optimum (output) queueing alternative, without resorting to a faster packet switch fabric. >
41 citations
29 Nov 1993
TL;DR: The performance of the novel DCA technique in terms of blocking probability has been derived by simulations and the obtained results are compared with those achieved by a fixed channel allocation (FCA) technique to show a better behaviour.
Abstract: The paper deals with an efficient dynamic channel allocation (DCA) technique suitable for applications in both terrestrial and satellite cellular networks. A cost function is defined to allow an optimum selection of the channel to be allocated on demand. The performance of the novel DCA technique in terms of blocking probability has been derived by simulations. The obtained results are compared with those achieved by a fixed channel allocation (FCA) technique to show a better behaviour. >
20 citations
02 Nov 1993
TL;DR: Considering the basic operations of a cellular network, the authors discuss some aspects related to the definition of similar procedures for a much more complex system.
Abstract: In an integrated space/terrestrial system for mobile communications the satellite is cooperating with a terrestrial cellular network for providing user services. Considering the basic operations of a cellular network, the authors discuss some aspects related to the definition of similar procedures for a much more complex system.
4 citations
01 Oct 1993
TL;DR: The proposed switching fabric achieves optimum throughput-mean switching delay performance jointly with reduced buffering requirements and without having to resort to a faster switching fabric.
Abstract: The authors deal with an efficient high-speed packet switching fabric suitable for applications in future high speed networks. An advanced implementation architecture based on shared buffers at each input is studied. An important result is that the proposed switching fabric achieves optimum throughput-mean switching delay performance jointly with reduced buffering requirements and without having to resort to a faster switching fabric.
1 citations