Figure 4From: Two-hop time synchronization protocol for sensor networksThe comparison and difference between NH max and (N+2)[ (H max +1)/2] . (a) The comparison of N Hmax and (N+2)[ (Hmax+1)/2]. The white dot represents that the former is larger than the latter and the black dot conversely. (b) The difference between N Hmax and (N+2)[ (Hmax+1)/2].Back to article page