Spherical space-time codes (SSTC)

Author

Terry, John D. ; Heiskala, Juha T.

Author_Institution

Nokia Inc., Irving, TX, USA

Volume

5

Issue

3

fYear

2001

fDate

3/1/2001 12:00:00 AM

Firstpage

107

Lastpage

109

Abstract

We present the extension of the trellis space-time code (STC) concept to include signal mapping drawn from an N-dimensional sphere. The signal points were designed as such to increase the minimum squared distance between points in the constellation without increasing the average transmit energy. The mapping of the N-dimensional spherical constellations was performed in accordance to set partitioning rules for STC developed by AT&T but optimized for these codes. Performance evaluation for these spherical space-time codes (SSTC) are illustrated in an OFDM framework, which is a natural choice for multidimensional signaling.

Keywords

OFDM modulation; diversity reception; spectral analysis; trellis codes; AT&T; N-dimensional sphere; OFDM; average transmit energy; coding gain; diversity gain; minimum squared distance; multidimensional signaling; partitioning rules; performance evaluation; signal constellation; signal mapping; signal model; signal points; spherical space-time codes; trellis space-time code; Constellation diagram; Fading; Modulation coding; Multidimensional systems; OFDM; Receiving antennas; Signal processing; Space time codes; Transmitting antennas; Wireless communication;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/4234.913155

Filename

913155