Adaptive Incremental Redundancy for HARQ Transmission with Outdated CSI

We analyze the throughout achievable in transmission over block-fading channels when the instantaneous channel state information (CSI) is not available at the transmitter. Assuming operation with incremental redundancy hybrid ARQ (HARQ), we propose to adapt the transmissions rates using the outdated CSI, i.e., the one experienced by the receiver in the past transmissions that resulted in a packet decoding failure. We show that, even if the CSI is fully outdated, i.e., in independently block-fading channel, the adaptation provides notable gains over a non-adaptive HARQ and for high SNR, a few transmissions are necessary to approach closely the ergodic capacity.

[1]  Pravin Varaiya,et al.  Capacity of fading channels with channel side information , 1997, IEEE Trans. Inf. Theory.

[2]  Xin Wang,et al.  Analyzing and Optimizing Adaptive Modulation-Coding Jointly with ARQ for QoS-Guaranteed Traffic , 2007, 2006 IEEE International Conference on Communications.

[3]  Michael L. Honig,et al.  Reliability-based incremental redundancy with convolutional codes , 2005, IEEE Transactions on Communications.

[4]  N. Gopalakrishnan,et al.  Rate Selection Algorithms for IR Hybrid ARQ , 2008, 2008 IEEE Sarnoff Symposium.

[5]  N. Gopalakrishnan,et al.  Achievable Rates for Adaptive IR Hybrid ARQ , 2008, 2008 IEEE Sarnoff Symposium.

[6]  Dimitri P. Bertsekas,et al.  Dynamic programming and optimal control, 3rd Edition , 2005 .

[7]  Stephan Pfletschinger,et al.  Adaptive HARQ for imperfect channel knowledge , 2010, 2010 International ITG Conference on Source and Channel Coding (SCC).

[8]  Georgios B. Giannakis,et al.  Cross-Layer combining of adaptive Modulation and coding with truncated ARQ over wireless links , 2004, IEEE Transactions on Wireless Communications.

[9]  Michele Zorzi,et al.  On the use of renewal theory in the analysis of ARQ protocols , 1996, IEEE Trans. Commun..

[10]  Stefan Parkvall,et al.  Adaptive Incremental Redundancy , 2003 .

[11]  A. Goldsmith,et al.  Variable-rate variable-power MQAM for fading channels , 1996, Proceedings of Vehicular Technology Conference - VTC.

[12]  Dimitri P. Bertsekas,et al.  Dynamic Programming and Optimal Control, Two Volume Set , 1995 .

[13]  Leszek Szczecinski,et al.  Variable-Rate Transmission for Incremental Redundancy Hybrid ARQ , 2010, 2010 IEEE Global Telecommunications Conference GLOBECOM 2010.

[14]  Lars K. Rasmussen,et al.  MIMO ARQ Systems with multi-Level feedback , 2009, 2009 IEEE International Symposium on Information Theory.

[15]  Nihar Jindal,et al.  Performance of hybrid-ARQ in block-fading channels: A fixed outage probability analysis , 2010, IEEE Transactions on Communications.

[16]  Mohamed-Slim Alouini,et al.  Rate and Power Allocation for Discrete-Rate Link Adaptation , 2007, EURASIP J. Wirel. Commun. Netw..

[17]  Daniela Tuninetti,et al.  On the Benefits of Partial Channel State Information for Repetition Protocols in Block Fading Channels , 2011, IEEE Transactions on Information Theory.

[18]  Lars K. Rasmussen,et al.  Optimal Incremental-redundancy strategy for type-II hybrid ARQ , 2003, IEEE International Symposium on Information Theory, 2003. Proceedings..

[19]  Stefan Parkvall,et al.  Adaptive incremental redundancy [WCDMA systems] , 2003, 2003 IEEE 58th Vehicular Technology Conference. VTC 2003-Fall (IEEE Cat. No.03CH37484).

[20]  Mikael Skoglund,et al.  On the Expected Rate of Slowly Fading Channels with Quantized Side Information , 2005, ASILOMAR 2005.

[21]  Giuseppe Caire,et al.  The throughput of hybrid-ARQ protocols for the Gaussian collision channel , 2001, IEEE Trans. Inf. Theory.

[22]  Harry Leib,et al.  Coded Diversity on Block-Fading Channels , 1999, IEEE Trans. Inf. Theory.