Cluster-Based Cooperative Cache Deployment and Coded Delivery Strategy in C-V2X Networks

Algorithm 5

Cluster-based two-level cooperative cache deployment and coded delivery strategy.

Input: Velocity , position , number of files , file size , cache capacity of vehicle , cache capacity of eNodeB , file request probability under eNodeB , bias parameter of Zipf , transmission power , bandwidth and , and cluster size .

Output: Cluster, cache decision, transmitted packet.

// Cache Deployment

Divide all vehicles into clusters and calculate the CH and CM according to Algorithm 1;

Cache the frequently requested file at all CHs and eNodeBs according to Algorithm 2;

// Coded Delivers

for any cache node received several requests within do

  if node has cached the requested file then

   Set users’ requests as ;

   Calculate the subfile set according to (30);

   Calculate the packet transmitted by according to Algorithm 3;

  end

end