Importance of accurate mobility modeling in teletraffic analysis of the mobile environment

Abstract

This paper shows the importance of taking into account accurate mobility effects in performance evaluation of key teletraffic metrics of mobile communication networks. To accomplish this task, we introduce a new discrete stochastic node, the Pole of Gravity characterizing the temporal and spatial behavior of mobile users. This novel concept forms the realm of our mobility model termed as Scalable Mobility Model (SMM) and provides a realistic set of Oaths traversed by subscribers on a daily basis by taking into account attraction points, geographical environments, time factor and grouping individual subscribers into specific classes of mobility. Using this Approach, we demonstrate the need and importance of taking mobility-related factors in the analysis of teletraffic issues by investigating the signaling and traffic related parameters such cell residence time and traffic load. Our simulation results include a comparative performance of SMM against the well known random way point model for same performance issues for the City Area of Bristol, UK during the rush and busy hour

Evaluation of blocking probability in multiservice wireless networks

“…Moreover, we assume that the inter-arrival time for communication requests using the class of services i (i = 1, 2, 3, 4) is a random variable, and follows an exponential distribution with parameter λ i > 0 [3]. In the same vein, we assume that the residence time T r in each cell and the communication duration T s are exponentially distributed, with respective parameters μ r (μ r > 0) and μ c (μ c > 0).…”

Performance Modeling of Cellular Mobile Systems: A Review of Recent Advances

“…Earlier studies on mobility were primarily carried out with outdoor environments [9,[15][16][17][18]. Let us consider an indoor environment, a building consisting of floors and elevators as shown in Figure 6.…”

“…Thus, it is important to accurately model the user movement in a particular scenario together with a suitable traffic model. Several mobility models have been developed and investigated in the literature [9,[15][16][17][18]. Most of the work are dealt with outdoor scenarios (urban or suburban) considering vehicle-borne mobile users in street layouts.…”

“…A wide range of user-centric applications are anticipated in the future in the context of designing integrated networks for airport terminals, shopping malls or even for a home Personal Communication System (PCS) [5,6]. Investigating such futuristic systems present significant challenges in the areas such as the interaction between multiple interfaces [4], pico-cell and femto cell environments [7,8], Quality of Service (QoS) [9], traffic modeling [2,[10][11][12], user mobility modeling [11,[13][14][15][16][17][18] and handoff processes [19][20][21]. Though, there are some discrete, environment-specific simulation studies [4,8] available at present, the in-depth research on such futuristic systems requires more organized and analytical approach with simulation and experiments as verification tools.…”

On Indoor Mobility Performance Limits for an Engset Radio-over-Fiber Model Using Prioritized General Handoff Process

“…Thus, it is important to accurately model the user movement in a particular scenario together with a suitable traffic model. Several mobility models have been developed and investigated in the literature [1]- [3]. Most of the work dealt with outdoor scenario (urban or suburban) considering vehicle-borne mobile users in street layouts.…”