Reduced-complexity near-capacity downlink iteratively decoded generalized multi-layer space-time coding using irregular convolutional codes

This paper presents a low complexity iteratively detected space-time transmission architecture based on Generalized Multi-Layer Space-Time (GMLST) codes and Irregular Convolutional Codes (IRCCs). The GMLST combines the benefits of the Vertical Bell-Labs LAyered Space-Time (VBLAST) scheme and Space-Time Coding (STC). The GMLST is serially concatenated with a Unity-Rate Code (URC) and an IRCC which are used to facilitate near-capacity operation with the aid of an EXtrinsic Information Transfer (EXIT) chart based design. Reduced-complexity iterative multistage Successive Interference Cancellation (SIC) is employed in the GMLST decoder, instead of the significantly more complex Maximum Likelihood (ML) detection. For the sake of approaching the maximum attainable rate, iterative decoding is invoked to achieve decoding convergence by exchanging extrinsic information across the three serial component decoders. Finally, it is shown that the SIC-based iteratively detected IRCC-URC-GMLST system is capable of providing a feasible trade-off between the affordable computational complexity and the achievable system throughput.

[1]  Siavash M. Alamouti,et al.  A simple transmit diversity technique for wireless communications , 1998, IEEE J. Sel. Areas Commun..

[2]  A. Robert Calderbank,et al.  Combined Array Processing and Space-Time Coding , 1999, IEEE Trans. Inf. Theory.

[3]  Stephan ten Brink,et al.  Convergence behavior of iteratively decoded parallel concatenated codes , 2001, IEEE Trans. Commun..

[4]  Suhas N. Diggavi,et al.  Construction and analysis of a new quaternionic space-time code for 4 transmit antennas , 2005, Commun. Inf. Syst..

[5]  M. J. Gans,et al.  On Limits of Wireless Communications in a Fading Environment when Using Multiple Antennas , 1998, Wirel. Pers. Commun..

[6]  Reinaldo A. Valenzuela,et al.  Detection algorithm and initial laboratory results using V-BLAST space-time communication architecture , 1999 .

[7]  A. Robert Calderbank,et al.  Space-Time block codes from orthogonal designs , 1999, IEEE Trans. Inf. Theory.

[8]  Stephan ten Brink,et al.  Extrinsic information transfer functions: model and erasure channel properties , 2004, IEEE Transactions on Information Theory.

[9]  Emre Telatar,et al.  Capacity of Multi-antenna Gaussian Channels , 1999, Eur. Trans. Telecommun..

[10]  Meixia Tao,et al.  Generalized layered space-time codes for high data rate wireless communications , 2004, IEEE Transactions on Wireless Communications.

[11]  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).

[12]  Lizhong Zheng,et al.  Diversity and multiplexing: a fundamental tradeoff in multiple-antenna channels , 2003, IEEE Trans. Inf. Theory.

[13]  Stephan ten Brink,et al.  Designing Iterative Decoding Schemes with the Extrinsic Information Transfer Chart , 2001 .

[14]  Lajos Hanzo,et al.  Unveiling Near-Capacity Code Design: The Realization of Shannon's Communication Theory for MIMO Channels , 2008, 2008 IEEE International Conference on Communications.

[15]  Hamid Jafarkhani,et al.  A quasi-orthogonal space-time block code , 2000, 2000 IEEE Wireless Communications and Networking Conference. Conference Record (Cat. No.00TH8540).

[16]  B. L. Yeap,et al.  Turbo Coding, Turbo Equalisation and Space-Time Coding , 2002 .

[17]  Lie-Liang Yang,et al.  Iteratively Decoded Variable Length Space-Time Coded Modulation: Code Construction and Convergence Analysis , 2007, IEEE Transactions on Wireless Communications.

[18]  J.E. Mazo,et al.  Digital communications , 1985, Proceedings of the IEEE.

[19]  Lajos Hanzo,et al.  Near-Capacity Iteratively Decoded Space-Time Block Coding , 2008, VTC Spring 2008 - IEEE Vehicular Technology Conference.

[20]  Michael Tüchler,et al.  Design of Serially Concatenated Systems Depending on the Block Length , 2004, IEEE Trans. Commun..

[21]  A. Robert Calderbank,et al.  Space-Time Codes for High Data Rate Wireless Communications : Performance criterion and Code Construction , 1998, IEEE Trans. Inf. Theory.

[22]  Lajos Hanzo,et al.  EXIT-chart aided near-capacity Irregular Bit-Interleaved Coded Modulation design , 2009, IEEE Transactions on Wireless Communications.

[23]  A. Goldsmith,et al.  Capacity of Rayleigh fading channels under different adaptive transmission and diversity-combining techniques , 1999, IEEE Transactions on Vehicular Technology.

[24]  Michael Tüchler.  Convergence prediction for iterative decoding of threefold concatenated systems , 2002, GLOBECOM.

[25]  Lajos Hanzo,et al.  Turbo Coding, Turbo Equalisation and Space-Time Coding for Transmission over Fading Channels , 2002 .

[26]  Lajos Hanzo,et al.  Near-Capacity Three-Stage Downlink Iteratively Decoded Generalized Layered Space-Time Coding with Low Complexity , 2008, IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference.

[27]  Michael Tuchler,et al.  EXIT charts of irregular codes , 2002 .

[28]  Soon Xin Ng,et al.  Turbo Detection of Precoded Sphere Packing Modulation Using Four Transmit Antennas for Differential Space-Time Spreading , 2008, IEEE Transactions on Wireless Communications.

[29]  Gerard J. Foschini,et al.  Layered space-time architecture for wireless communication in a fading environment when using multi-element antennas , 1996, Bell Labs Technical Journal.

[30]  Lajos Hanzo,et al.  On the MIMO channel capacity of multidimensional signal sets , 2006, IEEE Transactions on Vehicular Technology.