Distributed Groups Mutual Exclusion Based on Clients/Servers Model

In this paper we present a new distributed group mutual exclusion (DGME) based on clients/servers model, and uses a dynamic data structures. Several processes (clients) can access simultaneously to a same opened session (server). The algorithm ensures that, at any time, at most one session is opened, and any requested session will be opened in a finite time. The number of messages is between 0 and m, where m is the number of session in the network. In the average case, O(Log(m)) messages are necessary to open a session. The maximum concurrency is n, where n is the number of processes in the network