By Topic

Space-time coded modulation for high data rate wireless communications

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Naguib, A.F. ; Inf. Sci. Res. Center, AT&T Labs., Florham Park, NJ, USA ; Tarokh, V. ; Seshadri, N. ; Calderbank, A.R.

This paper presents the theory and practice of a new advanced modem technology suitable for high data rate wireless communications and presents its performance over a frequency-flat Rayleigh fading channel. The new technology is based on space-time coded modulation (STCM) with multiple transmit and/or multiple receive antennas and orthogonal pilot sequence insertion (O-PSI). In this approach data is encoded by a space-time channel encoder and the output of the encoder is split into N streams to be simultaneously transmitted using N transmit antennas. The transmitter inserts periodic orthogonal pilot sequences in each of the simultaneously transmitted bursts. The receiver uses those pilot sequences to estimate the fading channel. When combined with an appropriately designed interpolation filter, accurate channel state information (CSI) can be estimated for the decoding process. Simulation results of the proposed modem as applied to the IS-136 cellular standard are presented. We present the frame error rate (FER) performance as a function of the signal to noise ratio (SNR) and Doppler spread in the presence of timing and frequency offset errors. Simulation results show that, for example, for 10% FER, data rates up to 54 kbps per a 30 kHz channel can be supported at a SNR of 11.7 dB and a Doppler spread of 180 Hz using a 32-state 8-PSK space-time code with 2 transmit and 2 receive antennas. Simulation results for other cases are also provided

Published in:

Global Telecommunications Conference, 1997. GLOBECOM '97., IEEE  (Volume:1 )

Date of Conference:

3-8 Nov 1997