Progressive Image Transmission over OFDM Systems using Multiple Antennas

A Joint source-channel coding (JSCC) scheme for SPIHT coded image transmission over OFDM systems with spatial diversity is proposed where no feedback channel is available. By using diversity techniques, the fading effects can be dramatically decreased and we show that subchannels in OFDM systems are indeed flat Rayleigh fading channels and approach Gaussian noisy channels when the diversity gain gets large, as a result, the system performance can be improved. The simulation results are presented with different number of antennas and different multipath delay and Doppler spread.

• Type: Conference
• Year: 2000
• Where: ICMCS
• Authors: Jie Song, K. J. Ray Liu
• Keywords: ICMCS 2000, Multimedia, OFDM Systems, Rayleigh Fading Channels, SPIHT Coded Image