Inter-cell interference statistics of uplink OFDM systems with Soft Frequency Reuse

Author

Yuanping Zhu ; Jing Xu ; Yang Yang ; Xin Yang ; Zeming Hu

Author_Institution

Key Lab. of Wireless Sensor Network & Commun., Shanghai Inst. of Microsyst. & Inf. Technol. (SIMIT), Shanghai, China

fYear

2012

fDate

3-7 Dec. 2012

Firstpage

4764

Lastpage

4769

Abstract

Soft Frequency Reuse (SFR) has been widely used to deal with the severe ICI (Inter-Cell Interference) especially for cell edge users. This paper presents an analytical method to investigate the statistics of inter-cell interference in uplink when SFR scheme is adopted in OFDM (Orthogonal Frequency Division Multiplexing) systems. PDF (Probability Density Function) of ICI from one adjacent interfering cell is derived and then used to deduce the expectation and variance of ICI from multiple interfering cells. The derived results are validated through comparison with Monte Carlo simulations. In addition, the relationships between system parameters and statistics of ICI in different frequency bands are investigated. These contributions will give inspect into important guidelines to system optimization.

Keywords

Monte Carlo methods; OFDM modulation; cellular radio; frequency allocation; probability; radiofrequency interference; ICI; Monte Carlo simulations; PDF; SFR scheme; cell edge users; intercell interference; intercell interference statistics; multiple interfering cells; one adjacent interfering cell; orthogonal frequency division multiplexing systems; probability density function; soft frequency reuse; system optimization; uplink OFDM systems;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Communications Conference (GLOBECOM), 2012 IEEE

Conference_Location

Anaheim, CA

ISSN

1930-529X

Print_ISBN

978-1-4673-0920-2

Electronic_ISBN

1930-529X

Type

conf

DOI

10.1109/GLOCOM.2012.6503872

Filename

6503872