Mathematical Problems in Engineering / 2013 / Article / Alg 1

Research Article

A Distributed Dynamic Super Peer Selection Method Based on Evolutionary Game for Heterogeneous P2P Streaming Systems

Algorithm 1

A distributed -learning. Super Peer Selection algorithm for ESS (ESS-SPS).
Step 1: Given the slot index , each peer initializes with a random between .
Step 2: Initialize -value associated with for all peers in super groups.
Step 3: loop
      During slot , for k = [1 : M]
      if   then
    peer randomly choose to be a SP to serve as a super peer to download streaming chunks
   from the peers outside the group with dowpnload rate or to be an OP to download
   streaming chunks from the SP.
    Choose strategy
   end if
   peer computes the indicator function and his/her directly payoff   using (23).
Step 4: peer computes average payoff   and .
Step 5: Updates the probability of being a SP using (22).
Step 6: Update
Step 7: endloop for all peers in super group.

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