Analysis of macroblock-to-slice group mapping for H.264 video transmission over packet-based wireless fading channel

In this paper, we analyze the effectiveness of using FMO for wireless video transmission. We use H.264 FMO feature as the macroblock-level error resilience tool. Our study analyzes the tradeoff and effectiveness of using predefined mapping and explicit mapping in slow and fast fading wireless channel condition. We also propose to use the encoder´s macroblock coded-bit-count information as an indicator for a choice of macroblock-address-map of each picture. The scheme proposed conforms to the baseline H.264 decoder with no need for bitstream modification. Simulation results indicate the use of suitable choice of MBAmap for FMO could reduce the number of undecodable macroblocks.