Millimeter wave based small cell deployment is a promising technique for the evolution of fifth generation (5G) cellular network. This paper investigates coverage probability of millimeter wave cellular network (MWCN) over Nakagami-m fading channel. Stochastic geometry based ITU-R statistical model is used for modeling the blockages in MWCN which accounts line of sight (LoS) propagation characteristics of urban environment. SNR distribution is also considered under nearest-neighbor and furthest-neighbor based receiver association schemes for better representation of coverage probability in noise limited environment. Furthermore, new performance metric, namely, area transport efficiency (ATE) is proposed to capture the impact of the different network parameters on the system performance. Numerical results are evaluated to compare the performance of the MWCN under nearest-neighbor and furthest-neighbor based receiver association schemes. It is seen that height of transmitter plays an important role in the performance of the MWCN. It is also observed that furthest-neighbor scheme outperforms nearest-neighbor scheme for low SNR threshold and higher BS heights. Whereas for high SNR threshold performance of nearest-neighbor scheme is better as compared to furthest-neighbor scheme.