Computer Science ›› 2015, Vol. 42 ›› Issue (2): 70-75.doi: 10.11896/j.issn.1002-137X.2015.02.015

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Bounding End to End Delay for Self-similar Traffic in LTE-A Femtocell Networks

SI Yuan, CHEN Xin and LIU Zong-qi   

  • Online:2018-11-14 Published:2018-11-14

Abstract: LTE-A is a fourth-generation radio communication standard which provides high data rates to mobile users.LTE-A adopts femtocell technology to enhance the quality of service (QoS) experienced by indoor users.To derive the end-to-end delay bound of LTE-A femtocell networks,a stochastic network calculus method was proposed.First,stochastic traffic and service curves are constructed to model respectively the self-similar mobile traffic and MIMO channels in LTE-A femtocell networks.Then,effective bandwidth and Chernoff bound approaches are employed to obtain the theoretical end-to-end delay bound.Simulations by NS3 show that the deviation between the theoretical and simulative upper bounds on delay is within 2 milliseconds.This paper provided some fresh insight into QoS provisioning in LTE-A femtocell networks.

Key words: LTE-A femtocell,Stochastic network calculus,Self-similar traffic,Delay bound

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