Trust-Aware and Low Energy Consumption Security Topology Protocol of Wireless Sensor Network

Algorithm 2

The pseudocode of weighted spanning tree.

) if round = 1

()  Bs_str = Receive_Str(msg form BS) //radio strength from BS

() endif

() if  (().energy > 0 && ().type! = “”)

()  if  (().distanceToSink < ().distanceToSink && (). > 0 && ().type! = “”)

()  choose max(^* distance/ + ^* Ecurrent/Eo + ^* (max_degree − degreei)/max_degree) as next node

()    ().nextnode = ;

()   degree += degree //updated the next-hop node’s degree

()    broadcast _MSG within range ;

()   end if;

() end for

() for (All nodes whose residual energy are greater than 0)

() Node Send TDMA table to it’s connected node;

() nodes have connected to the node receives the TDMA

() end for