Replicate Distribution Method of Minimum Cost in Cloud Storage for Internet of Things

Distributed Algorithms for a Replication Problem of Popular Network Data

“…The third, fourth and fifth columns indicate the minimum, maximum and average of the values of the FRA/Isolationist, respectively. The similar descriptions are suitable for Tables 4,5,6,7,8,9,10 and 11. From the results of Tables 3 and 5, we can see that both the FRA and AORA can obtain better performance gains than the isolationist algorithm. The reason is that both the FRA and AORA consider the total performance gain of the group when they make decisions.…”

“…If the replication operation of o n happens in s m , the other servers in the group can access o n in s m rather than the original server, this affects the performance of the group, so we get the expression in Eq. (5). Under case À 2 , there is only one copy of object o n in the group.…”

“…Khan [4] proposes the A-star algorithm that is used to replace the optimal algorithm for comparison in the section of experiments. The other replication algorithms for a variety of systems are considered in [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23]. The studies of [5][6][7][8][9][10][11][12][13][14] are used to minimize the data access cost and [15][16][17][18][19][20][21][22][23] consider the algorithms that can improve the system reliability.…”