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TO APPEAR IN IEEE ICC 2003, ANCHORAGE, ALASKA. 1 Comparing Application-and Physical-Layer Approaches
 

Summary: TO APPEAR IN IEEE ICC 2003, ANCHORAGE, ALASKA. 1
Comparing Application- and Physical-Layer Approaches
to Diversity on Wireless Channels
J. Nicholas Laneman
, Emin Martinian, Gregory W. Wornell John G. Apostolopoulos, Susie J. Wee
Research Laboratory of Electronics Streaming Media Systems Group
Massachusetts Institute of Technology Hewlett-Packard Laboratories
Cambridge, MA USA Palo Alto, CA USA
Email: {jnl,emin,gww}@allegro.mit.edu Email: {japos,swee}@hpl.hp.com
Abstract-- Diversity techniques often arise as appealing
means for improving performance of multimedia communi-
cation over certain types of channels with independent par-
allel components (e.g., multiple antennas, frequency bands,
or time slots). Diversity can be obtained by channel coding
across parallel components at the physical layer. Alterna-
tively, the physical layer can present an interface to the par-
allel components as separate, independent links thus allow-
ing the application layer to implement diversity in the form
of multiple description source coding. We compare these two
approaches in terms of average end-to-end distortion as a

  

Source: Apostolopoulos, John - Hewlett Packard Research Labs

 

Collections: Computer Technologies and Information Sciences