DocumentCode :
45938
Title :
Access Point Density and Bandwidth Partitioning in Ultra Dense Wireless Networks
Author :
Stefanatos, Stelios ; Alexiou, Angeliki
Author_Institution :
Dept. of Digital Syst., Univ. of Piraeus, Piraeus, Greece
Volume :
62
Issue :
9
fYear :
2014
fDate :
Sept. 2014
Firstpage :
3376
Lastpage :
3384
Abstract :
This paper examines the impact of system parameters such as access point density and bandwidth partitioning on the performance of randomly deployed, interference-limited, dense wireless networks. While much progress has been achieved in analyzing randomly deployed networks via tools from stochastic geometry, most existing works either assume a very large user density compared to that of access points, which does not hold in a dense network, and/or consider only the user signal-to-interference-ratio as the system figure of merit, which provides only partial insight on user rate as the effect of multiple access is ignored. In this paper, the user rate distribution is obtained analytically, taking into account the effects of multiple access as well as the SIR outage. It is shown that user rate outage probability is dependent on the number of bandwidth partitions (subchannels) and the way they are utilized by the multiple access scheme. The optimal number of partitions is lower bounded for the case of large access point density. In addition, an upper bound of the minimum access point density required to provide an asymptotically small rate outage probability is provided in closed form.
Keywords :
geometry; interference suppression; radio networks; stochastic processes; SIR outage; access point density; asymptotically small rate outage probability; bandwidth partitioning; signal-to-interference-ratio; stochastic geometry; ultra dense wireless networks; user rate distribution; user rate outage probability; Bandwidth; Fading; Frequency division multiaccess; Indexes; Interference; Time division multiple access; Wireless networks; Access point density; bandwidth partitioning; stochastic geometry; ultra dense wireless networks; user rate outage probability;
fLanguage :
English
Journal_Title :
Communications, IEEE Transactions on
Publisher :
ieee
ISSN :
0090-6778
Type :
jour
DOI :
10.1109/TCOMM.2014.2351820
Filename :
6883156
Link To Document :
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