A New Algorithm for Improved Blind Detection of Polar Coded PDCCH in 5G New Radio

In recent release of the new cellular standard known as 5G New Radio (5G-NR), the physical downlink control channel (PDCCH) has adopted polar codes for error protection. Similar to 4G-LTE, each active user equipment (UE) must blindly detect its own PDCCH in the downlink search space. This work investigates new ways to improve the accuracy of PDCCH blind detection in 5G-NR. We develop a novel design of joint detection and decoding receiver for 5G multiple-input multiple-output (MIMO) transceivers. We aim to achieve robustness against practical obstacles including channel state information (CSI) errors, noise, co-channel interferences, and pilot contamination. To optimize the overall receiver performance in PDCCH blind detection, we incorporate the polar code information during the signal detection stage by relaxing and transforming the Galois field code constraints into the complex signal field. Specifically, we develop a novel joint linear programming (LP) formulation that takes into consideration the transformed polar code constraints. Our proposed joint LP formulation can also be integrated with polar decoders to deliver superior receiver performance at low cost. We further introduce a metric that can be used to eliminate most of wrong PDCCH candidates to improve the computational efficiency of PDCCH blind detection for 5G-NR.

[1]  Ying Li,et al.  Construction and Block Error Rate Analysis of Polar Codes Over AWGN Channel Based on Gaussian Approximation , 2014, IEEE Communications Letters.

[2]  Martin J. Wainwright,et al.  Using linear programming to Decode Binary linear codes , 2005, IEEE Transactions on Information Theory.

[3]  Xiaodong Wang,et al.  LDPC-based space-time coded OFDM systems over correlated fading channels: performance analysis and receiver design , 2001, Proceedings. 2001 IEEE International Symposium on Information Theory (IEEE Cat. No.01CH37252).

[4]  T·西皮拉.  Blind transport format detection based on decoder metric , 2005 .

[5]  Kun Wang,et al.  Semidefinite Relaxation Based Blind Equalization using Constant Modulus Criterion , 2018, ArXiv.

[6]  Warren J. Gross,et al.  Blind Detection With Polar Codes , 2017, IEEE Communications Letters.

[7]  Tian Xia,et al.  Novel Blind Identification of LDPC Codes Using Average LLR of Syndrome a Posteriori Probability , 2012, IEEE Transactions on Signal Processing.

[8]  Tracey Ho,et al.  Linear Programming Detection and Decoding for MIMO Systems , 2006, 2006 IEEE International Symposium on Information Theory.

[9]  Zhi Ding,et al.  Joint Detection and Decoding in LDPC-Based Space-Time Coded MIMO-OFDM Systems via Linear Programming , 2015, IEEE Transactions on Signal Processing.

[10]  Zhi Ding,et al.  FEC Code Anchored Robust Design of Massive MIMO Receivers , 2016, IEEE Transactions on Wireless Communications.

[11]  Erdal Arikan,et al.  Channel Polarization: A Method for Constructing Capacity-Achieving Codes for Symmetric Binary-Input Memoryless Channels , 2008, IEEE Transactions on Information Theory.

[12]  Zhi Ding,et al.  A Joint Detection and Decoding Receiver Design for Polar Coded MIMO Wireless Transmissions , 2018, 2018 IEEE International Symposium on Information Theory (ISIT).

[13]  Jing Zhou,et al.  Information-Dispersion-Entropy-Based Blind Recognition of Binary BCH Codes in Soft Decision Situations , 2013, Entropy.

[14]  Zhi Ding,et al.  Diversity Integration in Hybrid-ARQ With Chase Combining Under Partial CSI , 2016, IEEE Transactions on Communications.

[15]  Stephan ten Brink,et al.  Achieving near-capacity on a multiple-antenna channel , 2003, IEEE Trans. Commun..

[16]  Ángel M. Bravo-Santos.  Polar Codes for the Rayleigh Fading Channel , 2013, IEEE Communications Letters.

[17]  Yunghsiang Sam Han,et al.  Strategies for blind transport format detection using cyclic redundancy check in UMTS WCDMA , 2005, WiMob'2005), IEEE International Conference on Wireless And Mobile Computing, Networking And Communications, 2005..

[18]  Zhi Ding,et al.  Diversity combining in wireless relay networks with partial channel state information , 2015, 2015 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP).

[19]  Alexander Vardy,et al.  List decoding of polar codes , 2011, 2011 IEEE International Symposium on Information Theory Proceedings.

[20]  Zhi Ding,et al.  Robust receiver design based on FEC code diversity in pilot-contaminated multi-user massive MIMO systems , 2016, 2016 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP).

[21]  Alexander Vardy,et al.  How to Construct Polar Codes , 2011, IEEE Transactions on Information Theory.

[22]  Emanuele Viterbo,et al.  A universal lattice code decoder for fading channels , 1999, IEEE Trans. Inf. Theory.

[23]  Michael Gastpar,et al.  On LP decoding of polar codes , 2010, 2010 IEEE Information Theory Workshop.

[24]  Alain Glavieux,et al.  Iterative correction of intersymbol interference: Turbo-equalization , 1995, Eur. Trans. Telecommun..

[25]  Zhi Ding,et al.  Joint Turbo Receiver for LDPC-Coded MIMO Systems Based on Semi-Definite Relaxation , 2018, 2018 IEEE 88th Vehicular Technology Conference (VTC-Fall).

[26]  Reinaldo A. Valenzuela,et al.  V-BLAST: an architecture for realizing very high data rates over the rich-scattering wireless channel , 1998, 1998 URSI International Symposium on Signals, Systems, and Electronics. Conference Proceedings (Cat. No.98EX167).

[27]  Erik G. Larsson,et al.  A Fast Scheme for Blind Identification of Channel Codes , 2011, 2011 IEEE Global Telecommunications Conference - GLOBECOM 2011.

[28]  Zhi Ding,et al.  Integrated Semi-definite Relaxation Receiver for LDPC-Coded MIMO Systems , 2018, ArXiv.

[29]  E. Arkan,et al.  A performance comparison of polar codes and Reed-Muller codes , 2008, IEEE Communications Letters.

[30]  Zhi Ding,et al.  Joint detection and decoding of LDPC coded distributed space-time signaling in wireless relay networks via linear programming , 2014, 2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP).