A Fuzzy-Rule Based Data Delivery Scheme in VANETs with Intelligent Speed Prediction and Relay Selection

Algorithm 1

(1) initialization: determine the relationship between RSUs and

vehicles periodically

(2)  if  S is covered by a RSU

(3)     deliver packets to in V2R mode

   else

     fuzzy-rule-based wireless transmission method

     vehicle-based short-term vehicle speed prediction

(4)      (1) find potential paths

(5)      (2) evaluate potential paths

(6)      (3) determine wireless transmission path (optimum)

(7)     S sends packets to

(8)     if  RSU_s fails to receive packets after threshold time

(9)       select another path (sub-optimum)

(10)        go to step

      else

(11)       end

(12)   sends packets to

(13)  if  D is covered by a RSU

(14)     deliver packets to in V2R mode

   else

     machine learning system

(15)      (1) ML1 predicts D’s turning direction

(16)      (2) ML2 predicts RSU_n (highest possibility)

(17)      (3) ML3 predicts travelling path

(18)     two-way mode transfer

      fuzzy-rule-based wireless transmission method

(19)    if  D fails to receive packets after threshold time

(20)        select again (second highest possibility)

(21)        go to step

      else

(22)        end