Title :
Multiple-Symbol Differential Detection for Unitary Space-Time-Frequency Coding
Author :
Jia, Ziyan ; Handa, Shiro ; Sasamori, Fumihito ; Oshita, Shinjiro
Author_Institution :
Shinshu Univ., Nagano
Abstract :
In this paper, multiple-symbol differential detection (MSDD) is applied for differential unitary space-time- frequency coding (DUSTFC) scheme over frequency selective fading multiple-input multiple-output (MIMO) channels to compensate for the performance loss of conventional differential detection comparing with coherent detection. The decision metrics of time and frequency domain MSDD for DUSTFC are derived by considering the time and frequency domain fading autocorrelation respectively. Simulation results demonstrate that extending the observation interval of MSDD can effectively lower the error floors for DUSTFC schemes coded on both time and frequency domain.
Keywords :
MIMO systems; correlation methods; differential detection; fading channels; space-time codes; coherent detection; differential unitary space-time-frequency coding; frequency domain fading autocorrelation; frequency selective fading channel; multiple-input multiple-output channels; multiple-symbol differential detection; time domain fading autocorrelation; Autocorrelation; Diversity methods; Fading; Frequency diversity; Frequency domain analysis; OFDM; Performance loss; Rayleigh channels; Receiving antennas; Transmitting antennas;
Conference_Titel :
Circuits and Systems for Communications, 2008. ICCSC 2008. 4th IEEE International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-1707-0
Electronic_ISBN :
978-1-4244-1708-7
DOI :
10.1109/ICCSC.2008.36
