Research Article
Distributed floor control protocols for computer collaborative applications on overlay networks
@INPROCEEDINGS{10.1109/COLCOM.2005.1651240, author={Shankar M. Banik and Sridhar Radhakrishnan and Tao Zheng and Chandra N. Sekharan}, title={Distributed floor control protocols for computer collaborative applications on overlay networks}, proceedings={1st International Conference on Collaborative Computing: Networking, Applications and Worksharing}, publisher={IEEE}, proceedings_a={COLLABORATECOM}, year={2006}, month={7}, keywords={Access protocols Application software Collaboration Communication channels Communication system control Computer applications Computer networks Distributed computing Distributed control Media Access Protocol}, doi={10.1109/COLCOM.2005.1651240} }- Shankar M. Banik
Sridhar Radhakrishnan
Tao Zheng
Chandra N. Sekharan
Year: 2006
Distributed floor control protocols for computer collaborative applications on overlay networks
COLLABORATECOM
IEEE
DOI: 10.1109/COLCOM.2005.1651240
Abstract
Computer supported collaborative applications on overlay networks are gaining popularity among users who are geographically dispersed. Examples of these kinds of applications include video-conferencing, collaborative design and simulation, distance learning, and online games. One of the important issues in collaborative applications is floor control wherein the end-users coordinate among themselves to gain exclusive access to the communication channel. An end-user who wins the floor, sends message to all other participating end-users. In this paper, to solve the floor control problem we present an implementation and evaluation of ALOHA and distributed queue dual bus (DQDB) distributed MAC (medium access control) protocols on overlay networks. As an initial step in the implementation of these MAC protocols, we propose an algorithm to construct an efficient communication channel among the Network Service Nodes (NSNs) in the overlay network. We also show that our implementation scheme (first one among decentralized floor control protocols) preserves the causal ordering of messages. We compare the efficiencies of the proposed implementation of floor control protocols using an analytical model that is verified using extensive simulation experiments.
