TY - GEN
T1 - An efficient method for performance evaluation of femto-macro overlay systems
AU - Huang, Yue-Cai
AU - Ko, King-Tim
AU - Huang, Qian
AU - Iversen, Villy Bæk
AU - Zukerman, Moshe
PY - 2011
Y1 - 2011
N2 - This paper considers a two-tier femto-macro overlay network architecture, where groups of femtocells are overlaid by macrocells. The capacity of the femtocells is limited, thus redirection of blocked femto calls to the overlaid macrocell is used as a QoS assurance strategy. Similar overflow approaches have been used in telephony; however, extension of this approach to capacity-constrained femto-macro overlay networks poses significant challenges due to the wide variety of bandwidth requirement of Internet services, the large number of femtocells overlaid by a macrocell, and the need for fast computations imposed by practical requirements of dynamic real-time resource allocation. We propose a new computationally efficient numerical method for the loss probability approximation in such two-tier femto-macro overlay networks. The accuracy of the method is verified by exact Markov-chain solutions for small systems and by simulations for larger systems. © 2011 IEEE.
AB - This paper considers a two-tier femto-macro overlay network architecture, where groups of femtocells are overlaid by macrocells. The capacity of the femtocells is limited, thus redirection of blocked femto calls to the overlaid macrocell is used as a QoS assurance strategy. Similar overflow approaches have been used in telephony; however, extension of this approach to capacity-constrained femto-macro overlay networks poses significant challenges due to the wide variety of bandwidth requirement of Internet services, the large number of femtocells overlaid by a macrocell, and the need for fast computations imposed by practical requirements of dynamic real-time resource allocation. We propose a new computationally efficient numerical method for the loss probability approximation in such two-tier femto-macro overlay networks. The accuracy of the method is verified by exact Markov-chain solutions for small systems and by simulations for larger systems. © 2011 IEEE.
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UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-80052153066&origin=recordpage
U2 - 10.1109/icc.2011.5962706
DO - 10.1109/icc.2011.5962706
M3 - RGC 32 - Refereed conference paper (with host publication)
SN - 9781612842332
BT - IEEE International Conference on Communications
T2 - 2011 IEEE International Conference on Communications, ICC 2011
Y2 - 5 June 2011 through 9 June 2011
ER -