Various path-loss models of radio wave propagation are compared in this work. Path-loss with different distances are calculated by using Hata-Okumura, Walfisch-Ikegami and Lee models at different environment. The calculated results are used to design a suitable cellular link. It is observed from the compared results that the Walfisch-Ikegami models is more appropriate in urban area for designing a suitable cellular link on the other hand Hata-Okumura model for suburban and rural areas. A suitable cellular link is designed for Rajshahi City Corporation,Bangladesh, that divided into 7 cell reuse pattern in 13 clusters by using Walfisch-Ikegami model. The optimum values of co-channel reuse ratio 4.58 and co-channel interference ratio is 17.35 dB. The cell radius is 1.25 Km and co-channel distance is 5.7 Km. It was also observed that the co-channel reuse ratio is exponentially correlated to the co-channel interference ratio. BER depend on SNR and information rate. It was also observed that BER performance is improved by 23.08 dB in the case of BPSK from 16PSK at SNR 6 dB.