This paper investigates the load balancing in sensor nodes and wireless link based on the performance of wireless sensor networks.With an optimized model

the forced scheme of data collection and forwarding scheduling for reconfiguration is derived.Leveraging the property of dissimilarity distribution

a method to quantitatively evaluate the benefits of load balancing is presented

in order to access the profitability.Then a novel forced reconfiguration load balancing（FRLB） algorithm is put forward.In particular

the tradeoff between the number of general nodes in a cluster and the number of clusterheads within the transmission range is discussed.The load balancing method in this paper outperforms others in terms of balancing factor

different nodes number and data scales of applications.The proposed model and analytical results can be effectively applied to the reliability analysis for other wireless applications（e.g.

data aggregation is involved）.