Paper Info
Title
Optimized embedded multicarrier modulation for efficient delivery of layered video data
Abstract
We tackle the problem of efficient image transmission over multicarrier modulation (MCM) systems, proposing the use of a layered or multiresolution (MR) framework. We treat the source as being characterized by multiple layers of importance, and therefore deserving of multiple levels of noise immunity, i.e, having different BER requirements. We present the idea of embedded multicarrier modulation (EMCM) as a very effective way of achieving this, and introduce a fast table-lookup based power allocation algorithm that optimizes the multicarrier constellation design in terms of maximizing the deliverable throughput bit rates for the different resolution layers, subject to a total power constraint. Simulation results of our EMCM system reveal substantial gains (up to about 25%) in deliverable bit rates over optimized TDM-based MCM designs. Further, in typical image transmission simulations using an embedded wavelet image coder, the EMCM approach yields almost 3 dB gains in delivered quality over conventional single-resolution MCM systems
Year
DOI
Venue
1998
10.1109/ICC.1998.685164
Communications, 1998. ICC 98. Conference Record. 1998 IEEE International Conference
Keywords
DocType
Volume
error statistics,frequency division multiplexing,image resolution,optimisation,quadrature amplitude modulation,table lookup,time division multiplexing,transform coding,video coding,visual communication,wavelet transforms,BER,FDM,QAM,TDM,TDM-based MCM,embedded wavelet image coder,fast table-lookup,image transmission,layered video data delivery,multicarrier constellation design,multiresolution framework,noise immunity,optimized embedded multicarrier modulation,power allocation algorithm,simulation results,throughput bit rates,total power constraint
Conference
2
ISBN
Citations 
PageRank 
0-7803-4788-9
1
0.37
References 
Authors
7
2
Name
Order
Citations
PageRank
S. Sandeep Pradhan11719140.53
Kannan Ramchandran2355.47