NDLI: Analysis of small cell networks with randomly wandering users

Content Provider	IEEE Xplore Digital Library
Author	Kavitha, Veeraruna Ramanath, Sreenath Altman, Eitan
Copyright Year	2012
Description	Author affiliation: INRIA, Sophia-Antipolis, France (Altman, Eitan) \|\| Mymo Wireless, Bangalore, India (Kavitha, Veeraruna) \|\| Lekha Wireless Solutions, Bangalore, India (Ramanath, Sreenath)
Abstract	We develop a framework to model and study cellular networks with randomly wandering users. Our model captures user displacement resulting from random mobility patterns and arrival positions, which in turn influences the transmission rates. We model the user movements by a random walk with exponential wandering times. Each cell is composed of disjoint (transmission) rate regions and we model each rate region as an equivalent step in the random walk model. We further use spatial queuing theoretic tools to obtain explicit expressions for the expected service time (total time duration for which the user derives service from the cell), call busy and drop probabilities.We obtain approximate closed form expressions for optimal cell size (for some asymptotic speed cases and small cell radii) and validate them via numerical simulations. We show that the optimal cell size increases with the increase in the speed of the users or in the power budget and decreases with increase in path loss factor.
Starting Page	60
Ending Page	67
File Size	268834
Page Count	8
File Format	PDF
ISBN	9781467322942
e-ISBN	9783901882456
e-ISBN	9783901882470
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-05-14
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	IFIP
Subject Keyword	Measurement Analytical models Random walk Probability Mathematical model Wandering users Equations Queueing analysis Small cells Signal to noise ratio
Content Type	Text
Resource Type	Article

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