Performance Analysis of Simultaneous Location and Power Estimation Using WLS Method for Cognitive Radio

Author

Kazemi, Mohammad ; Mahboobi, Behrad ; Ardebilipour, Mehrdad

Author_Institution

Fac. of Electr. & Comput. Eng., Kliaje Nasir Toosi Univ. of Technol., Tehran, Iran

Volume

15

Issue

10

fYear

2011

fDate

10/1/2011 12:00:00 AM

Firstpage

1062

Lastpage

1064

Abstract

Precise estimation of spatial spectrum holes is of great importance in future cognitive radio (CR) networks. This information can help the secondary users to employ the spatial resources more efficiently and limit the interference to the primary users to the admissible level. In order to measure the performance of a location and power estimation algorithm, obtaining the statistical characteristics of estimation error is of great importance. In this paper, the performance of RSS-WLS approach which is an important linear position and power estimation algorithm in cognitive radio systems has been analyzed by obtaining the closed form expression for mean and covariance of its estimation error.

Keywords

cognitive radio; estimation theory; least mean squares methods; statistical analysis; RSS-WLS approach; WLS method; cognitive radio; location estimation; power estimation; received signal strength; spatial spectrum hole; statistical characteristic; weighted least square; Cognitive radio; Covariance matrix; Equations; Estimation error; Mathematical model; Power measurement; Cognitive radio; received signal strength (RSS); simultaneous location and power estimation; weighted least square (WLS);

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2011.081211.110912

Filename

5997333