Abstract: According to the load balancing issue on wireless sensor network, this paper presented and implemented the MintRout-HNLN protocol on TinyOS. "Hot notifing" and "Hot node avoidance" were introduced in the MintRout-HNLB to distribution of the traffic loads in the network by choosing the suboptimal node sharing the forwarding task of the hot node. The criterion for load-balancing performance named the SLN-LBEI (Same-level nodes load-balancing evaluation indicator) was proposed and used for results analysing. From statistic analysis and simulation using TOSSIM,it shows that the MintRout-HNLB is more effective on load-balancing than MintRoute and balances the energy comsumption of the same hop nodes.

Key words: TinyOS, MintRoute-HNLB, MintRoute, Load balancing, TOSSIM