Interference Analysis and Mitigation for Cognitive-Empowered Femtocells Through Stochastic Dual Control

Author

Wang, Xiao Yu ; Ho, Pin-Han ; Chen, Kwang-Cheng

Author_Institution

Electr. & Comput. Eng., U. of Waterloo, Waterloo, ON, Canada

Volume

11

Issue

6

fYear

2012

fDate

6/1/2012 12:00:00 AM

Firstpage

2065

Lastpage

2075

Abstract

This paper provides an extensive analysis on interferences due to different interfering sources within cognitive-empowered femtocell (CEF) networks. Based on the interference analysis and formulations, a stochastic dual control (SDC) approach is introduced for dynamic sensing coordination, aiming to achieving efficient interference mitigation without involving global and centralized control efforts. Simulation results show that the proposed SDC approach can effectively reduce interferences under highly dynamic environments within CEF networks when compared with other spectrum sensing strategies.

Keywords

cognitive radio; femtocellular radio; interference suppression; stochastic systems; telecommunication control; CEF networks; SDC approach; cognitive-empowered femtocell network mitigation; dynamic sensing coordination; interference analysis; interference mitigation; spectrum sensing strategy; stochastic dual control approach; Femtocells; Interference; Macrocell networks; Radio transmitters; Receivers; Sensors; Wireless communication; Cognitive radio; ad hoc networks; dual control; femtocell; stochastic;

fLanguage

English

Journal_Title

Wireless Communications, IEEE Transactions on

Publisher

ieee

ISSN

1536-1276

Type

jour

DOI

10.1109/TWC.2012.032712.110197

Filename

6177977