TY - GEN
T1 - HARQ buffer management
T2 - IEEE International Symposium on Information Theory, ISIT 2015
AU - Lee, Wonju
AU - Simeone, Osvaldo
AU - Kang, Joonhyuk
AU - Rangan, Sundeep
AU - Popovski, Petar
N1 - Funding Information:
The work of O. Simeone was partially supported by WWTF Grant ICTl2-054.
Publisher Copyright:
© 2015 IEEE.
PY - 2015/9/28
Y1 - 2015/9/28
N2 - A key practical constraint on the design of Hybrid automatic repeat request (HARQ) schemes is the modem chip area that needs to be allocated to store previously received packets. The fact that, in modern wireless standards, this area can amount to a large fraction of the overall chip has recently highlighted the importance of HARQ buffer management, that is, of the use of advanced compression policies for storage of received data. This work tackles the analysis of the throughput of standard HARQ schemes, namely Type-I, Chase Combining and Incremental Redundancy, under the assumption of a finite-capacity HARQ buffer by taking an information-theoretic standpoint based on random coding. Both coded modulation, via Gaussian signaling, and Bit Interleaved Coded Modulation (BICM) are considered. The analysis sheds light on questions of practical relevance for HARQ buffer management such as on the type of information to be extracted from the received packets and on how to store it.
AB - A key practical constraint on the design of Hybrid automatic repeat request (HARQ) schemes is the modem chip area that needs to be allocated to store previously received packets. The fact that, in modern wireless standards, this area can amount to a large fraction of the overall chip has recently highlighted the importance of HARQ buffer management, that is, of the use of advanced compression policies for storage of received data. This work tackles the analysis of the throughput of standard HARQ schemes, namely Type-I, Chase Combining and Incremental Redundancy, under the assumption of a finite-capacity HARQ buffer by taking an information-theoretic standpoint based on random coding. Both coded modulation, via Gaussian signaling, and Bit Interleaved Coded Modulation (BICM) are considered. The analysis sheds light on questions of practical relevance for HARQ buffer management such as on the type of information to be extracted from the received packets and on how to store it.
KW - BICM
KW - HARQ buffer management
KW - quantization
UR - http://www.scopus.com/inward/record.url?scp=84969798686&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84969798686&partnerID=8YFLogxK
U2 - 10.1109/ISIT.2015.7282562
DO - 10.1109/ISIT.2015.7282562
M3 - Conference contribution
AN - SCOPUS:84969798686
T3 - IEEE International Symposium on Information Theory - Proceedings
SP - 784
EP - 788
BT - Proceedings - 2015 IEEE International Symposium on Information Theory, ISIT 2015
PB - Institute of Electrical and Electronics Engineers Inc.
Y2 - 14 June 2015 through 19 June 2015
ER -