To deal with the ‘hot spot’ problem of ‘many-to-one’ traffic pattern in data gathering wireless sensor network
an grafe-based unequal clustering algorithm is proposed. First
based on the analysis of the data gathering traffic model
given the relationship between the hops to sink with the load of CHs. After that
we presents a grade-based load-balancing clustering algorithm for wireless sensor network
in which cluster size are based on node’s grade
cluster head selection using mulit-weight. Simulation results show that the stand deviation of CHs’ load with different grade are reduced 9 times. The algorithm effectively balances the load of CHs.