Based on the concept of multi-hop relaying, a cooperative macro-diversity system is suggested. In the Rayleigh-lognormal composite fading environment, the performances of a hexagonal macro-diversity cellular system are investigated. The maximum ratio combining (MRC) is considered for the uplink analysis of outage probability and bit error rate (BER) for differential phase shift keying (DPSK). Numerical results show that the performances of the new system outperform those of the conventional single-hop macro-diversity system. The multi-hop relaying can enhance the robustness of performance, and it is helpful to improve the reliability of the radio link.