Participating-Domain Segmentation Based Server Selection Scheme in Successive Participation Scenario

摘要

This paper proposes a server selection scheme in successive participation scenario based on the segmentation of participating-domain to suppress the latency. In the proposed scheme, the users participate for server selection one after another. The proposed scheme determines a recommended server, and a new participating user selects the recommended server first. Recommended servers are determined in advance at the condition that participating users exist in all regions in users' participation domain. A recommended server is determined for each divided region to minimize the latency when there exists one user at each region. The new participating user selects the recommended available server, where the user is located. We formulate an integer linear programming problem to determine the recommended servers for the proposed scheme. We use the outcome of the recommended server finding process as the input for server selection. Numerical results express that smaller latency is obtained using the proposed scheme compared to the conventional greedy based server selection scheme, by employing some additional computations for finding the recommended servers before participating of users.