Novel Detection Algorithm of IDMA System under Channel Estimation Error

Author

Jang, Chulhee ; Choi, Hyunwoo ; Lee, Jae

Author_Institution

Sch. of Electr. Eng. & INMC, Seoul Nat. Univ., Seoul

fYear

2008

fDate

21-24 Sept. 2008

Firstpage

1

Lastpage

5

Abstract

In this paper, we propose a novel detection algorithm for the elementary signal estimator of an IDMA system considering channel estimation error. To develop the algorithm, we derive new probability density function of decision variable reflecting channel estimation error and modify the conventional algorithm based on it. Through computer simulations, it is shown that the proposed algorithm achieves lower bit error rate than the conventional one. This performance enhancement is provided with negligible increase of its computational complexity.

Keywords

channel estimation; code division multiple access; computational complexity; error statistics; signal detection; CDMA system; IDMA system; bit error rate; channel estimation error; code-division multiple access system; computational complexity; detection algorithm; elementary signal estimator; interleave-division multiple access system; probability density function; Bandwidth; Channel estimation; Computer errors; Detection algorithms; Fading; Intersymbol interference; Multiaccess communication; Multiple access interference; Multiuser detection; Probability density function;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2008. VTC 2008-Fall. IEEE 68th

Conference_Location

Calgary, BC

ISSN

1090-3038

Print_ISBN

978-1-4244-1721-6

Electronic_ISBN

1090-3038

Type

conf

DOI

10.1109/VETECF.2008.195

Filename

4657027