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Table 5 Data types used in the model of HSM

From: Data offloading in IoT environments: modeling, analysis, and verification

Types Descriptions
N1 Integer type, for the N_ID of the CI.
M SIZE Float type, for the size of a message.
M D Integer type, for the N_ID of the D of a message.
M ID Integer type, for the M_ID of a message.
M TTL_F Boolean type TTL flag that is TRUE throughout the life-time of a message, is FALSE on life-time expiry.
M ACK_F Boolean type ACK flag that sets to TRUE on the successful ACK of a message, is FALSE otherwise.
Node_L Integer array type, for the N_IDs of the CNs.
Avlbl_B Float type, for available space, in a node’s message buffer.
M ID_D Integer array type, for the M_IDs, in a node’s RL.
M ID_A Integer array type, for the M_IDs, in a node’s AL.
M ID_R Integer array type, for M_IDs of messages, in a node’s ML.
N2 Integer type, for the N_ID of the CN.
U CD_N1_D Float type, for CD-based utility of CI w.r.t a message’s D.
U CD_N2_D Float type, for CD-based utility of CN w.r.t a message’s D.
U ICT_N1_D Float type, for ICT-based utility of CI w.r.t a message’s D.
U ICT_N2_D Float type, for ICT-based utility of CN w.r.t a message’s D.