TY - GEN
T1 - Delay-constrained joint source-channel coding using incremental redundancy with feedback
AU - Kwasinski, A.
AU - Chande, V.
AU - Farvardin, N.
N1 - Publisher Copyright:
© 2003 IEEE.
PY - 2003
Y1 - 2003
N2 - We present a joint source-channel coding scheme based on incremental redundancy and feedback for transmission of real-time sources over wireless channels under strict delay constraints. The proposed scheme operates at constant bit rate and delay so as to capture the benefits of a feedback channel, while keeping the synchronous nature of pure forward error correction systems. We formulate the underlying Markov chain by introducing the notion of codetype and present a design algorithm for channel and source rate allocation. We present simulation results for speech transmission and show gains of up to 1 dB over pure FEC systems. We also present an application to CDMA networks and show increases of up to 28 % in the number of calls that can be simultaneously supported.
AB - We present a joint source-channel coding scheme based on incremental redundancy and feedback for transmission of real-time sources over wireless channels under strict delay constraints. The proposed scheme operates at constant bit rate and delay so as to capture the benefits of a feedback channel, while keeping the synchronous nature of pure forward error correction systems. We formulate the underlying Markov chain by introducing the notion of codetype and present a design algorithm for channel and source rate allocation. We present simulation results for speech transmission and show gains of up to 1 dB over pure FEC systems. We also present an application to CDMA networks and show increases of up to 28 % in the number of calls that can be simultaneously supported.
UR - http://www.scopus.com/inward/record.url?scp=78649378522&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=78649378522&partnerID=8YFLogxK
U2 - 10.1109/ITW.2003.1216749
DO - 10.1109/ITW.2003.1216749
M3 - Conference contribution
AN - SCOPUS:78649378522
T3 - Proceedings - 2003 IEEE Information Theory Workshop, ITW 2003
SP - 283
EP - 286
BT - Proceedings - 2003 IEEE Information Theory Workshop, ITW 2003
T2 - 2003 IEEE Information Theory Workshop, ITW 2003
Y2 - 31 March 2003 through 4 April 2003
ER -