Performance Analysis of Two-Tier Femtocell Networks with Outage Constraints

This paper investigates the performance of two-tier femtocell networks with cochannel femtocell deployment while considering cellular geometry and cross-tier interference in downlink. We derive the per-tier outage probability by introducing a simplified mathematical model that provides closely approximate femtocell interference distribution. Based on the outage probability analysis, we also derive the transmission capacity that represents the total capacity of the cochannel two-tier networks with outage constraints. The performance analysis provides an accurate characterization of the outage probability and the transmission capacity, accounting for the density of randomly scattered femtocells and femtocell transmission power.

[1]  Jie Zhang,et al.  OFDMA femtocells: A roadmap on interference avoidance , 2009, IEEE Communications Magazine.

[2]  Magnus Almgren,et al.  Radio Resource Management for Wireless Networks , 2001 .

[3]  Jeffrey G. Andrews,et al.  Spectrum allocation in tiered cellular networks , 2009, IEEE Transactions on Communications.

[4]  Jeffrey G. Andrews,et al.  Transmission capacity of wireless ad hoc networks with outage constraints , 2005, IEEE Transactions on Information Theory.

[5]  Charles M. Grinstead,et al.  Introduction to probability , 1999, Statistics for the Behavioural Sciences.

[6]  M. S. Raff.  On Approximating the Point Binomial , 1956 .

[7]  Jeffrey G. Andrews,et al.  Uplink capacity and interference avoidance for two-tier femtocell networks , 2007, IEEE Transactions on Wireless Communications.

[8]  Jeffrey G. Andrews,et al.  Coverage in multi-antenna two-tier networks , 2009, IEEE Transactions on Wireless Communications.

[9]  Jeffrey G. Andrews,et al.  The Effect of Fading, Channel Inversion, and Threshold Scheduling on Ad Hoc Networks , 2007, IEEE Transactions on Information Theory.

[10]  Jeffrey G. Andrews,et al.  Femtocell networks: a survey , 2008, IEEE Communications Magazine.

[11]  H. Vincent Poor,et al.  Uplink user capacity in a multicell CDMA system with hotspot microcells , 2006, IEEE Transactions on Wireless Communications.

[12]  Malvin Carl Teich,et al.  Power-law shot noise , 1990, IEEE Trans. Inf. Theory.

[13]  Holger Claussen.  Performance of Macro- and Co-Channel Femtocells in a Hierarchical Cell Structure , 2007, 2007 IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications.

[14]  Bruno O. Shubert,et al.  Random variables and stochastic processes , 1979 .

[15]  A. Abu-Dayya,et al.  Outage probabilities in the presence of correlated lognormal interferers , 1994 .

[16]  Vincent K. N. Lau,et al.  Spectrum sharing between cellular and mobile ad hoc networks: transmission-capacity trade-off , 2008, IEEE Journal on Selected Areas in Communications.

[17]  L.J. Greenstein,et al.  An empirically-based path loss model for wireless channels in suburban environments , 1998, IEEE GLOBECOM 1998 (Cat. NO. 98CH36250).

[18]  Dan Keun Sung,et al.  Capacity analysis of spectrally overlaid macro/microcellular CDMA systems supporting multiple types of traffic , 2003, IEEE Trans. Veh. Technol..

[19]  John G. Proakis,et al.  Probability, random variables and stochastic processes , 1985, IEEE Trans. Acoust. Speech Signal Process..