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Multiple Description Coding with Multiple Transmit and Receive Antennas for Wireless Channels: The Case of Digital Modulation
 

Summary: Multiple Description Coding with Multiple Transmit and Receive Antennas for
Wireless Channels: The Case of Digital Modulation
Nejat Kamaci, Yucel Altunbasak, and Russell M. Mersereau
Center for Signal and Image Processing
Georgia Institute of Technology
Atlanta, GA, 30332-0250
gte346x, yucel, rmmí @ece.gatech.edu
Abstract--An effective way of providing error resilience with a relatively
small reduction in compression ratio is multiple description coding (MDC).
All multiple description codes to date assume the existence of multiple inde-
pendent "on-off" channels between the transmitter and receiver. Each link
is either broken in which case the symbols or packets are completely lost, or
it functions properly, in which case symbols are received free of errors. This
channel model is appropriate for wireline networks, such as the Internet, it
may not be applicable to other commonly used channels such as wireless
channels. In this paper, we replace the parallel independent on-off channel
model with wireless channel models such as a Rayleigh fading model. We
also communicate using multiple transmit and receive antennas over the
channel. Furthermore, we use digital bandpass modulation to transmit the
source symbols.

  

Source: Altunbasak, Yucel - School of Electrical and Computer Engineering, Georgia Institute of Technology

 

Collections: Engineering