After a brief introduction oFAsynchronous Wireless Networks and its basic architecture including Radio Access Network (RAN) and Core network (CN)
a software simulation system based on MATLAB is constructed while the basic performance evaluation parameters is defined and developed. The author then compares the simulation results from traditional systems and asynchronous system. Finally
the author compares the effect of architectural change in RAN and CN and gets the conclusion that RAN plays the key role in wireless networks capacity and performance.