Title :
Combined Channel Estimation and Turbo Equalization on Wireless Channels
Author :
Shiao, Fu-Sheng ; Taylor, Desmond P. ; Martin, Philippa A.
Author_Institution :
Electr. & Comput. Eng. Dept., Univ. of Canterbury, Christchurch
Abstract :
To date most frequency-domain (FD) turbo equalization schemes assume ideal channel state information (CSI) is available. In this paper, a system combining FD turbo linear equalization with time-domain channel estimation is developed and evaluated for single-carrier modulation formats. The effect of estimated CSI on the equalizer form is shown. Performance results employing convolutionally encoded QPSK and 16-QAM transmissions show the efficacy of the proposed system and its capability to operate in different wireless scenarios.
Keywords :
channel estimation; frequency-domain analysis; time-domain analysis; turbo codes; wireless channels; channel state information; frequency-domain turbo linear equalization; single-carrier modulation; time-domain channel estimation; wireless channel; Channel estimation; Channel state information; Convolutional codes; Equalizers; Fading; Frequency; Iterative decoding; Modulation; Quadrature phase shift keying; Time domain analysis;
Conference_Titel :
Vehicular Technology Conference, 2008. VTC 2008-Fall. IEEE 68th
Conference_Location :
Calgary, BC
Print_ISBN :
978-1-4244-1721-6
Electronic_ISBN :
1090-3038
DOI :
10.1109/VETECF.2008.179
