TY - GEN A1 - Gäbler, Jan A1 - König, Hartmut T1 - Moversight: a group communication protocol for mobile scenarios T2 - Telecommunication systems : modeling, analysis, design and managementversion N2 - The increasing mobility of Internet users and the growing need to collaborate with staff travelling on business belong to the key characteristics of the future Internet. Mobile collaborative applications require novel schemes for group communication that actively support collaborations in wireless scenarios. An intrinsic problem of collaborations in wireless scenarios is the temporary connection loss with the group due to user mobility and network issues. Existing group communication protocols do not sufficiently support this situation. In this paper, we present a new peer-to-peer group communication protocol, called Moversight, that was specifically designed to support closed group cooperation in mobile environments with varying churn rates. It applies a new group communication paradigm, called mobile optimistic virtual synchrony, to handle churn-related peer failures. It enhances the virtual synchrony paradigm for mobile scenarios. The paper introduces the paradigm and describes the main protocol features of Moversight. Finally we present simulation results to demonstrate the applicability of the protocol. KW - Mobile group communication, Mobility support, Mobile collaborative applications, Closed groups, Group communication system, Virtual synchrony Y1 - 2015 UR - https://opus4.kobv.de/opus4-UBICO/frontdoor/index/index/docId/14472 UR - http://link.springer.com/article/10.1007%2Fs11235-015-0062-1 SN - 1572-9451 SN - 1018-4864 VL - 61 IS - 4 SP - 695 EP - 716 ER -