Terms and Explanations

ATD_e(F)―Average transmission Delay of the node “e” for a given forwarding set “F”

ADR_e(F) ―Average delivery ratio of the node “e” for a given forwarding set “F”

AEC_e(F) ―Average energy consumption for a given forwarding set “F”

RE_th―Minimum residual energy that a node should have to remain connected to the network

P_ej―Packet reception ratio of node “e” to the forwarder “j”

ADR_th―Average delivery ratio threshold

ATD_th―Average Transmission delay threshold

AEC_th―Average energy consumption threshold

RE―The current Residual energy of the node

P^e(i)―Conditional probability that packet transmission is successful at a forwarder i, under the Condition that packet is received by at least one of the forwarders in F.

P_d―Default power level

d_e→F is the delay taken by the node e to reach all of its forwarders.

C_tp is the energy spent on transmission at power level tp by node e

P₁…P_n―Minimum and Maximum TP power levels

P_opt― Optimal power level

PCR―Probability of successful transmission

PRR―Packet Reception Ratio