Title :
Iterative channel estimation for GPRS
Author :
Nefedov, Nikolai ; Pukkila, Markku
Author_Institution :
Nokia Res. Center, Espoo, Finland
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;
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
DOI :
10.1109/PIMRC.2000.881572
