Interaction-Aware Video Community-Based Content Delivery in Wireless Mobile Networks

Algorithm 2

Process of content delivery.

(1) /   is request node in a community ; is broker member in ; is bridged member in . /

(2) sends request messages to neighbor members maintained by

(3) if( receives response messages)

(4)  for( = 0; ; ++)

(5)   estimates serving capacities of by (2);

(6)  end for

(7)  selects member with maximum value of serving capacities as supplier;

(8) else sends request message to ;

(9)    forwards message to other members;

(10)   if( receives response messages)

(11)     returns member list to ;

(12)   else forward request message to ;

(13)     if ( successfully receives response from other communities)

(14)       returns list of candidate suppliers to ;

(15)       estimates serving capacities by (2) and select supplier;

(16)     else forward request message to server;

(17)     end if

(18)   end if

(19) end if

(20) receives video data from supplier (server);