Blind estimation of primary user traffic parameters under sensing errors

Author

Gabran, Wesam ; Pawelczak, Przemyslaw ; Chun-Hao Liu ; Cabric, Danijela

Author_Institution

Broadcom Corp., Irvine, CA, USA

fYear

2013

fDate

9-13 June 2013

Firstpage

2391

Lastpage

2396

Abstract

In this work we investigate the bounds on the estimation accuracy of Primary User (PU) traffic parameters with exponentially distributed busy and idle times. We derive closed-form expressions for the Cramér-Rao bounds on the mean squared estimation error for the blind joint estimation of the PU traffic parameters, specifically, the duty cycle, and the mean arrival and departure rates. Moreover, we present the corresponding maximum-likelihood estimators for the traffic parameters and discuss the effect of sensing errors in the joint estimation of PU traffic.

Keywords

maximum likelihood estimation; subscriber loops; telecommunication traffic; Cramér-Rao bounds; PU traffic parameters; blind estimation; blind joint estimation; closed-form expressions; departure rates; duty cycle; dynamic spectrum access network; estimation accuracy; exponentially distributed busy times; idle times; maximum-likelihood estimators; mean arrival; mean squared estimation error; primary user traffic parameters; sensing errors; Estimation error; Joints; Maximum likelihood estimation; Sensors; Vectors; Zinc;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications (ICC), 2013 IEEE International Conference on

Conference_Location

Budapest

ISSN

1550-3607

Type

conf

DOI

10.1109/ICC.2013.6654889

Filename

6654889