Title:
ADAPTIVE CHANNEL CODING USING POLARIZATION
Document Type and Number:
WIPO Patent Application WO/2016/112285
Kind Code:
A3
Abstract:
Methods, systems, and devices are described for wireless communications at a wireless device. A wireless device may adaptively select a parity check matrix to increase the reliability of signal transmission by adapting to different channel statistics and channel types (e.g., erasure channels, channels with additive white Gaussian noise, and channels with discrete or continuous alphabets). For example, polarization codes (i.e., codes based on rows of a polarization matrix) may be used to construct parity check matrices on-the-fly given an estimation of dynamic channel conditions or diverse channel structures. The channel may be decomposed into polarized sub-channels corresponding to the polarization codes, and mutual information profiles may be determined for each of the polarized sub-channels. The parity check matrix corresponding to the polarization codes may be constructed based on the mutual information profile of all polarized sub-channels. The wireless device may encode or decode data based on the constructed parity check matrix.
Inventors:
GOELA NAVEEN (US)
NALLAMPATTI EKAMBARAM VENKATESAN (US)
TANDRA RAHUL (US)
SORIAGA JOSEPH BINAMIRA (US)
NALLAMPATTI EKAMBARAM VENKATESAN (US)
TANDRA RAHUL (US)
SORIAGA JOSEPH BINAMIRA (US)
Application Number:
PCT/US2016/012639
Publication Date:
September 22, 2016
Filing Date:
January 08, 2016
Export Citation:
Assignee:
QUALCOMM INC (US)
International Classes:
H04L1/00; H03M13/11; H03M13/13
Other References:
ARIKAN E: "Channel Polarization: A Method for Constructing Capacity-Achieving Codes for Symmetric Binary-Input Memoryless Channels", IEEE TRANSACTIONS ON INFORMATION THEORY, IEEE PRESS, USA, vol. 55, no. 7, 1 July 2009 (2009-07-01), pages 3051 - 3073, XP011262510, ISSN: 0018-9448
GUO JING ET AL: "Fixed-threshold polar codes", 2013 IEEE INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY, IEEE, 7 July 2013 (2013-07-07), pages 947 - 951, XP032497285, ISSN: 2157-8095, [retrieved on 20131003], DOI: 10.1109/ISIT.2013.6620366
NORBERT STOLTE: "Rekursive Codes mit der Plotkin-Konstruktion und ihre Decodierung", 1 January 2002 (2002-01-01), XP055241445, Retrieved from the Internet [retrieved on 20160114]
XIANBIN WANG ET AL: "On the polar codes for MIMO", 2013 INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS AND SIGNAL PROCESSING, IEEE, 24 October 2013 (2013-10-24), pages 1 - 5, XP032527964, DOI: 10.1109/WCSP.2013.6677268
WOOMYOUNG PARK ET AL: "Polar Codes for q-Ary Channels, q=2^r", IEEE TRANSACTIONS ON INFORMATION THEORY, IEEE PRESS, USA, vol. 59, no. 2, 1 February 2013 (2013-02-01), pages 955 - 969, XP011487406, ISSN: 0018-9448, DOI: 10.1109/TIT.2012.2219035
GUO JING ET AL: "Fixed-threshold polar codes", 2013 IEEE INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY, IEEE, 7 July 2013 (2013-07-07), pages 947 - 951, XP032497285, ISSN: 2157-8095, [retrieved on 20131003], DOI: 10.1109/ISIT.2013.6620366
NORBERT STOLTE: "Rekursive Codes mit der Plotkin-Konstruktion und ihre Decodierung", 1 January 2002 (2002-01-01), XP055241445, Retrieved from the Internet
XIANBIN WANG ET AL: "On the polar codes for MIMO", 2013 INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS AND SIGNAL PROCESSING, IEEE, 24 October 2013 (2013-10-24), pages 1 - 5, XP032527964, DOI: 10.1109/WCSP.2013.6677268
WOOMYOUNG PARK ET AL: "Polar Codes for q-Ary Channels, q=2^r", IEEE TRANSACTIONS ON INFORMATION THEORY, IEEE PRESS, USA, vol. 59, no. 2, 1 February 2013 (2013-02-01), pages 955 - 969, XP011487406, ISSN: 0018-9448, DOI: 10.1109/TIT.2012.2219035
Attorney, Agent or Firm:
SCHRAMM, Paul, M. (P.O. Box 11583Salt Lake City, Utah, US)
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