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

Algorithm 1

The pseudocode of elected cluster head.

() if round=1

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

() endif

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

()  ().state = “”;

()  broadcast _MSG within range ;

()  Receive (confirmation message of neighbor node within the range of );

()  calculate ;

()  broadcast PCH_MSG within range ;

()  receive PCH_MSG from others

()   ( received, own)

() endif

() if  (((). == )

()   ().state = “”;

() endif

() if  (().state == “”)

()  broadcast MC_MSG within range ;

()  waitfor JOIN_MC_MSG;

() endif