Robust space-time trellis codes for OFDM systems over quasi-static frequency selective fading channels

Author

Hong, Yi ; Yuan, Jinhong ; Shao, Xun

Author_Institution

Sch. of Electr. Eng. & Telecommun., New South Wales Univ., Sydney, NSW, Australia

Volume

1

fYear

2003

fDate

7-10 Sept. 2003

Firstpage

434

Abstract

This paper proposes the code design criteria for robust space-time trellis codes (STTCs) in orthogonal frequency division multiplexing (OFDM) systems over quasi-static frequency selective fading channels. The code design criteria consider the channels with multiple uncorrelated taps and various channel delay distributions such that the robust code performance over various channel conditions can be guaranteed. Based on the code design criteria, new 4, 8, and 16-state 4-PSK STTCs are constructed. Simulation shows that the new codes achieve the robust code performance over various quasi-static frequency selective fading channels.

Keywords

OFDM modulation; channel coding; fading channels; phase shift keying; space-time codes; trellis codes; OFDM; PSK; channel delay distributions; orthogonal frequency division multiplexing; phase shift keying; quasistatic frequency selective fading channels; robust code performance; robust space-time trellis codes; Convolutional codes; Delay effects; Fading; Intersymbol interference; OFDM; Performance analysis; Quadrature phase shift keying; Robustness; Shift registers; Telecommunications;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 2003. PIMRC 2003. 14th IEEE Proceedings on

Print_ISBN

0-7803-7822-9

Type

conf

DOI

10.1109/PIMRC.2003.1264309

Filename

1264309