Aiming at problem of coverage optimization and connectivity in wireless sensor networks（ WSNs）

a connectivity considered-BCBS（ CC-BCBS） is proposed. In two-dimensional monitoring region

CC-BCBS uses communication radius as restriction condition

and just partitions connected sensor nodes by Voronoi diagram. CCBCBS constructs the blind-zone area according to different coverage means of Voronoi polygon

and sets the centroid of the blind-zone as the optimal candidate position so as to improve the coverage rate. The influence that communication radius has on coverage redundancy is considered. Reasonable measures areshowed in case of three kinds of connectivity cases that might occur when doing partitions. Simulation results show that the algorithm has obvious advantages in coverage rate

distribution uniformity

average connect number and connectivity rate compared with algorithm like BCBS and so on.