Title :
Communication models with distributed transmission rates and buffer sizes
Author :
Arrowsmith, David ; Di Bernardo, Mario ; Sorrentino, Francesco
Author_Institution :
Math. Res. Centre, London Univ.
Abstract :
The paper is concerned with the interplay between network structure and traffic dynamics in a communications network, from the viewpoint of end-to-end performance of packet transfer. We use a model of network generation that allows the transition from random to scale-free networks. Specifically, we are able to consider three different topological types of networks: (a) random; (b) scale-free with gamma = 3; (c) scale-free with gamma = 2. We also use an LRD traffic generator in order to reproduce the fractal behavior that is observed in real world data communication. The issue is addressed of how the traffic behavior on the network is influenced by the variable factors of the transmission rates and queue length restrictions at the network vertices. We show that these factors can induce drastic changes in the throughput and delivery time of network performance and are able to counter-balance some undesirable effects due to the topology
Keywords :
graph theory; telecommunication network topology; telecommunication traffic; LRD traffic generator; buffer sizes; communication models; communications network; data communication; distributed transmission rates; network performance; network structure; network traffic behavior; networks topology; packet transfer; queue length; scale-free networks; traffic dynamics; Data communication; Distributed power generation; Fractals; Network servers; Network topology; Numerical simulation; Power generation; Telecommunication traffic; Throughput; Traffic control;
Conference_Titel :
Circuits and Systems, 2006. ISCAS 2006. Proceedings. 2006 IEEE International Symposium on
Conference_Location :
Island of Kos
Print_ISBN :
0-7803-9389-9
DOI :
10.1109/ISCAS.2006.1693766