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Table 2 Summary of notations

From: A novel queue management policy for delay-tolerant networks

Variable

Description

L

Number of nodes

n i (t)

Number of available replicas of bundle i at a node at time t

TTL i (t)

Remaining time to live for bundle i

m i (t)

Number of forwarded replicas of bundle i up to time t

N i  = n i (t) + m i (t)

Total number of replicas for bundle i

M j (t)

Node j’s encounter rate at time t

K(t)

Number of bundles in the system at time t

T i

Elapsed time for bundle i