Open AccessAn Active Handoff Algorithm based on The Retention Time of Complementary Nodes
Author(s) -
Xiaojian Zheng,
Tiewei Fu
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1846/1/012033
Subject(s) - backup , node (physics) , computer network , computer science , handover , service (business) , distributed computing , engineering , operating system , economy , structural engineering , economics
Due to the frequent joining and quitting of nodes in P2P network, it often leads to the failure of accessing nodes, and the decrease of system availability. Some of the existing methods are to switch a node’s service to its backup node after it is found to exit, and the backup node will continue to provide services. But the actual results are not ideal. The reason is that the service request of the node is always not responded from the time when the node exits the network to the time when the service switches to the backup node. This paper proposes an active handoff algorithm based on the retention time characteristics of complementary nodes. By predicting the exit time of the node, it finds the node complementary to the node in time as the backup node, and actively switches to the backup node before the node exits the network, so as to realize the service continuity. Experimental results show that the algorithm reduces the access failure and improves the system availability.