TY - JOUR
T1 - Effect of backhaul constraints on uplink femtocell networks
AU - Zeinalpour-Yazdi, Zolfa
AU - Jalali, Shirin
AU - Poor, H. Vincent
N1 - Funding Information:
Manuscript received December 7, 2017; revised February 28, 2018, June 9, 2018, and July 25, 2018; accepted July 28, 2018. Date of publication August 6, 2018; date of current version October 15, 2018. This work was supported by the National Science Foundation under Grants CCF-1420575 and CNS-1702808. The review of this paper was coordinated by Prof. Y. Zhou. (Corresponding author: Zolfa Zeinalpour-Yazdi.) Z. Zeinalpour-Yazdi is with the Department of Electrical Engineering, Yazd University, Yazd 89158, Iran (e-mail:,zeinalpour@yazd.ac.ir).
Publisher Copyright:
© 1967-2012 IEEE.
PY - 2018/10
Y1 - 2018/10
N2 - One promising approach to expand the coverage and enhance the performance of cellular networks is to employ multitier cellular networks. In this paper, an uplink two-tier communication network is studied, in which macrousers, femtousers, and femto access points are geometrically located inside the coverage area of a macro base station according to a Poisson point process. Each femtocell is assumed to have a fixed backhaul constraint that puts a limit on the maximum number of femto and macrousers it can service. Under this backhaul constraint, the network adopts a special open-access policy in which each macrouser is either assigned to its closest femto access point or to the macro base station. The choice is made based on the ratio between the distance of the macrouser from the macro base station and its distance from its closest femto access point. Under this model, upper and lower bounds on the outage probabilities experienced by users serviced by femto access points are derived as functions of the distance between the macro base station and the femto access point serving them. Similarly, upper and lower bounds on the outage probabilities of the users serviced by the macro base station are obtained. The bounds in both cases are confirmed via simulation results.
AB - One promising approach to expand the coverage and enhance the performance of cellular networks is to employ multitier cellular networks. In this paper, an uplink two-tier communication network is studied, in which macrousers, femtousers, and femto access points are geometrically located inside the coverage area of a macro base station according to a Poisson point process. Each femtocell is assumed to have a fixed backhaul constraint that puts a limit on the maximum number of femto and macrousers it can service. Under this backhaul constraint, the network adopts a special open-access policy in which each macrouser is either assigned to its closest femto access point or to the macro base station. The choice is made based on the ratio between the distance of the macrouser from the macro base station and its distance from its closest femto access point. Under this model, upper and lower bounds on the outage probabilities experienced by users serviced by femto access points are derived as functions of the distance between the macro base station and the femto access point serving them. Similarly, upper and lower bounds on the outage probabilities of the users serviced by the macro base station are obtained. The bounds in both cases are confirmed via simulation results.
KW - Heterogeneous networks
KW - backhaul constraint
KW - open access policy
KW - outage
KW - uplink communication
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U2 - 10.1109/TVT.2018.2863262
DO - 10.1109/TVT.2018.2863262
M3 - Article
AN - SCOPUS:85051004487
SN - 0018-9545
VL - 67
SP - 9931
EP - 9946
JO - IEEE Transactions on Vehicular Technology
JF - IEEE Transactions on Vehicular Technology
IS - 10
M1 - 8425762
ER -