Caching Efficiency Enhancement at Wireless Edges with Concerns on User’s Quality of Experience

Algorithm 1

Caching replacement algorithm.

Initialization:

Caching contents and corresponding weight

factor ;

Weight threshold ; Number of caching contents ;

Weight comparison factor ;

New caching content’s size ;

Neighbor router available cache size ;

Main routine:

Calculate comparison factor , and ;

Reorder the comparison factor of new caching contents as

and the caching content’s size set as

if  , then

 The new content data will not be cached by the local caching node;

if  , then

 The new content data will not be cached by the local caching node;

else

 if  , then

  Replace the content correlated with by the new content;

 else

  ;

  ;

  for   to 1 run

   if  , then

    ;

    if  , then

     Replace queue of by the new

     content data;

     ;

     Break;

    end if

   else

    break;

   end if

  end for

  if Fg==1, then

   The new content will not be cached by the caching node;

  end if

 end

end