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This paper examines the impact of system parameters such as access pointdensity and bandwidth partitioning on the performance of randomly deployed,interference-limited, dense wireless networks. While much progress has beenachieved in analyzing randomly deployed networks via tools from stochasticgeometry, most existing works either assume a very large user density comparedto that of access points which does not hold in a dense network, and/orconsider only the user signal-to-interference-ratio as the system figure ofmerit which provides only partial insight on user rate, as the effect ofmultiple access is ignored. In this paper, the user rate distribution isobtained analytically, taking into account the effects of multiple access aswell as the SIR outage. It is shown that user rate outage probability isdependent on the number of bandwidth partitions (subchannels) and the way theyare utilized by the multiple access scheme. The optimal number of partitions islower bounded for the case of large access point density. In addition, an upperbound of the minimum access point density required to provide an asymptoticallysmall rate outage probability is provided in closed form.

Access Point Density and Bandwidth Partitioning in Ultra Dense Wireless Networks