Iterative channel estimation for GPRS

Author

Nefedov, Nikolai ; Pukkila, Markku

Author_Institution

Nokia Res. Center, Espoo, Finland

Volume

2

fYear

2000

fDate

2000

Firstpage

999

Abstract

In this paper we consider iterative estimation and equalization techniques and present a simple method of updating channel estimates that includes decoder outputs into the iteration process. To clarify performance-complexity trade-off we evaluated iterative estimation and turbo equalization techniques in the General Packet Radio System (GPRS). It is found that turbo estimation is more beneficial for GPRS, showing 1 dB gain after one channel estimate update, while turbo equalization rounds provide only a slight improvement on the top of that

Keywords

cellular radio; data communication; equalisers; iterative decoding; iterative methods; packet radio networks; GPRS; General Packet Radio System; channel estimation; decoder outputs; equalization techniques; iteration process; iterative estimation; performance-complexity trade-off; turbo equalization techniques; turbo estimation; AWGN; Additive white noise; Channel estimation; Frequency; Gaussian noise; Ground penetrating radar; Intersymbol interference; Iterative decoding; Packet radio networks; Receivers;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 2000. PIMRC 2000. The 11th IEEE International Symposium on

Conference_Location

London

Print_ISBN

0-7803-6463-5

Type

conf

DOI

10.1109/PIMRC.2000.881572

Filename

881572