Wi-Fi wireless communication has become a basic service in public areas. But the quality is not stable due to the factors that are influenced by 1) a limited number of channels results in access interference, 2) various transmission ranges, carrier sensing and hidden terminal starvation problems, and 3) the barriers reduce the quality of transmissions. This work aims to explore and analyze the factors to show the level of performance effect on various transmission ranges of access points. Accordingly, this study designs several simulation cases to evaluate whether a small cell size can provide high performance co-existing with a large cell size by controlling the effect of the sensing ranges, transmission ranges, traffic types, data rates, and packet sizes. Network Simulation 3 (NS3) tool is used to implement the simulation cases and compare the results. We discussed our findings on these factors that affect the levels of starvation caused by the various signal ranges.