OFDM-Aided Differential Space–Time Shift Keying Using Iterative Soft Multiple-Symbol Differential Sphere Decoding

Soft-decision multiple-symbol differential sphere decoding (MSDSD) is proposed for orthogonal frequency-division multiplexing (OFDM)-aided differential space-time shift keying (DSTSK)-aided transmission over frequency-selective channels. Specifically, the DSTSK signaling blocks are generated by the channel-encoded source information and the space-time (ST) blocks are appropriately mapped to a number of OFDM subcarriers. After OFDM demodulation, the DSTSK signal is noncoherently detected by our soft-decision MSDSD detector. A novel soft-decision MSDSD detector is designed, and the associated decision rule is derived for the DSTSK scheme. Our simulation results demonstrate that an SNR reduction of 2 dB is achieved by the proposed scheme using an MSDSD window size of Nw = 4 over the conventional soft-decision-aided differential detection benchmarker, while communicating over dispersive channels and dispensing with channel estimation (CE).

[1]  M. Tuchler,et al.  Design of serially concatenated systems depending on the block length , 2004, IEEE Transactions on Communications.

[2]  Lajos Hanzo,et al.  EXIT Charts for System Design and Analysis , 2014, IEEE Communications Surveys & Tutorials.

[3]  Matthias Patzold,et al.  Mobile Fading Channels , 2003 .

[4]  Lajos Hanzo,et al.  A Universal Space-Time Architecture for Multiple-Antenna Aided Systems , 2012, IEEE Communications Surveys & Tutorials.

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

[6]  Lutz H.-J. Lampe,et al.  Multiple-symbol differential sphere decoding , 2005, IEEE Transactions on Communications.

[7]  Babak Hassibi,et al.  High-rate codes that are linear in space and time , 2002, IEEE Trans. Inf. Theory.

[8]  Lajos Hanzo,et al.  Reduced-Complexity Noncoherently Detected Differential Space-Time Shift Keying , 2011, IEEE Signal Process. Lett..

[9]  Lutz H.-J. Lampe,et al.  Differential Space-Frequency Modulation and Fast 2-D Multiple-Symbol Differential Detection for MIMO-OFDM , 2008, IEEE Transactions on Vehicular Technology.

[10]  Giorgio Matteo Vitetta,et al.  Further results on differential space-time modulations , 2003, IEEE Trans. Commun..

[11]  Lajos Hanzo,et al.  OFDM Aided Space-Time Shift Keying for Dispersive Downlink Channels , 2012, 2012 IEEE Vehicular Technology Conference (VTC Fall).

[12]  Lajos Hanzo,et al.  Near-Capacity Multi-Functional MIMO Systems: Sphere-Packing, Iterative Detection and Cooperation , 2009 .

[13]  Dariush Divsalar,et al.  Multiple-symbol differential detection of MPSK , 1990, IEEE Trans. Commun..

[14]  A. Burg,et al.  VLSI implementation of MIMO detection using the sphere decoding algorithm , 2005, IEEE Journal of Solid-State Circuits.

[15]  Lajos Hanzo,et al.  Near-Capacity Multi-Functional MIMO Systems , 2009 .

[16]  Lutz H.-J. Lampe,et al.  "Turbo DPSK" using soft multiple-symbol differential sphere decoding , 2006, IEEE Transactions on Information Theory.

[17]  Lajos Hanzo,et al.  Multiuser MIMO-OFDM for Next-Generation Wireless Systems , 2007, Proceedings of the IEEE.

[18]  Lajos Hanzo,et al.  OFDMA/SC-FDMA Aided Space–Time Shift Keying for Dispersive Multiuser Scenarios , 2013, IEEE Transactions on Vehicular Technology.

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

[20]  Shinya Sugiura.  Coherent versus non-coherent space-time shift keying for co-located and distributed MIMO systems , 2010 .

[21]  Lutz H.-J. Lampe,et al.  Tree-Search Multiple-Symbol Differential Decoding for Unitary Space-Time Modulation , 2007, IEEE Transactions on Communications.

[22]  Lajos Hanzo,et al.  Coherent and Differential Space-Time Shift Keying: A Dispersion Matrix Approach , 2010, IEEE Transactions on Communications.

[23]  Lajos Hanzo,et al.  Reduced-complexity noncoherently detected Differential Space-Time Shift Keying , 2011, 2011 IEEE Wireless Communications and Networking Conference.

[24]  Lajos Hanzo,et al.  Generalized Space-Time Shift Keying Designed for Flexible Diversity-, Multiplexing- and Complexity-Tradeoffs , 2011, IEEE Transactions on Wireless Communications.

[25]  Lutz H.-J. Lampe,et al.  On the Complexity of Sphere Decoding for Differential Detection , 2007, IEEE Transactions on Information Theory.

[26]  Joachim Hagenauer,et al.  The exit chart - introduction to extrinsic information transfer in iterative processing , 2004, 2004 12th European Signal Processing Conference.

[27]  Nambi Seshadri,et al.  On post-decision symbol-reliability generation , 1993, Proceedings of ICC '93 - IEEE International Conference on Communications.

[28]  Brian L. Hughes.  Differential Space-Time modulation , 2000, IEEE Trans. Inf. Theory.

[29]  Dariush Divsalar,et al.  Serial concatenated trellis coded modulation with rate-1 inner code , 2000, Globecom '00 - IEEE. Global Telecommunications Conference. Conference Record (Cat. No.00CH37137).

[30]  Lutz H.-J. Lampe,et al.  Noncoherent receivers for differential space-time modulation , 2002, IEEE Trans. Commun..

[31]  R. Clarke.  A statistical theory of mobile-radio reception , 1968 .

[32]  Robert W. Heath,et al.  Linear dispersion codes for MIMO systems based on frame theory , 2002, IEEE Trans. Signal Process..

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

[34]  Harald Haas,et al.  Spatial Modulation , 2008, IEEE Transactions on Vehicular Technology.

[35]  Shinya Sugiura.  Dispersion Matrix Optimization for Space-Time Shift Keying , 2011, IEEE Communications Letters.