On Implementation of Logical Time in Distributed Systems Operating over a Wireless IP Network

We address the problem of maintaining logical time in a distributed system operating over a special type of a network: one whose underlying graph is represented by fully-connected mesh of star-topology subgraphs. Such a graph is generated, for example, by a wireless IP networkin which mobility service agents, interconnected by an IP backbone, provide wireless connectivity to mobile hosts currently present in the associated location areas. We discuss the complementary logical clocks for the wireline and wireless segment of the networkand their integration into an isomorphic logical time system.