Link Expiration Time-Aware Routing Protocol for UWSNs

Algorithm 1

Algorithm for forwarding nodes.

Require: RREQ message

Ensure: RREP message

(1) Extract RREQ message

(2) Calculate Probability of packet forwarding

  and discarding

(3)  if  𝑃(𝐻₁∣𝐸₁𝐸₂𝐸₃)>𝑃(𝐻₂∣𝐸₁𝐸₂𝐸₃)  then

(4) Send RREP message to the sending node

(5)  else

(6) Discard the RREQ message

(7)  end if