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Open Access Publications from the University of California

Performance analysis of a broadcast star local area network with collision avoidance. Part 2, Finite station population model

  • Author(s): Goto, Kunio;
  • Suda, Tatsuya
  • et al.

In order to overcome the performance bottleneck due to collisions and their resolution in random access LANs, a new network architecture called a broadcast star network with collision avoidance has been proposed and studied by many researchers [2 - 15]. The performance of a broadcast star network is also studied in a companion paper [11], assuming an infinite station population and synchronous operation of the network.

In this paper, we analyze the performance of a broadcast star network assuming a finite number of stations, and we obtain the throughput and the distribution of transmission delays. An exact analysis is presented first. However, this analysis is computationally practical for networks with a small number of stations only. Therefore, an approximate analysis is also presented for a network having a large number of stations. The accuracy of our approximation is examined through simulations.

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