Multiple-Symbol Differential Sphere Detection Aided Differential Space-Time Block Codes Using QAM Constellations

We propose Multiple-Symbol Differential Detection (MSDD) aided Differential Space-Time Block Codes (DSTBCs) using QAM. Our solution eliminates the requirement of high-complexity MIMO channel estimation and its pilot overhead, while mitigating the potential performance degradation of noncoherent receivers in fast fading channels. Additionally, we develop Multiple-Symbol Differential Sphere Detection (MSDSD) for the QAM aided DSTBC schemes advocated, in order to circumvent their potentially excessive complexity.

[1]  Chau Yuen,et al.  Unitary Differential Space–Time Modulation With Joint Modulation , 2007, IEEE Transactions on Vehicular Technology.

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

[3]  Lajos Hanzo,et al.  Coherent versus Non-coherent and Cooperative Turbo Transceivers , 2010 .

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

[5]  P. Ho,et al.  Error performance of multiple symbol differential detection of PSK signals transmitted over correlated Rayleigh fading channels , 1991, ICC 91 International Conference on Communications Conference Record.

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

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

[8]  Robert Schober,et al.  Multiple-symbol differential sphere decoding , 2005, IEEE Trans. Commun..

[9]  P. Stoica,et al.  Differential modulation using space-time block codes , 2002, IEEE Signal Processing Letters.

[10]  Hamid Jafarkhani,et al.  A differential detection scheme for transmit diversity , 2000, IEEE Journal on Selected Areas in Communications.

[11]  Krishna R. Pattipati,et al.  An improved complex sphere decoder for V-BLAST systems , 2004, IEEE Signal Processing Letters.

[12]  Vahid Tarokh,et al.  Differential space time block codes using nonconstant modulus constellations , 2003, IEEE Trans. Signal Process..