Title :
A new differential space-time modulation scheme based on Weyl group
Author :
Hui Ji ; Zaharia, Gheorghe ; Helard, Jean-Francois
Author_Institution :
IETR, Univ. Eur. de Bretagne (UEB) INSA, Rennes, France
Abstract :
In this paper, we propose a new differential space-time modulation (DSTM) scheme for 4×4 multiple input multiple output (MIMO) systems. This scheme is used for MIMO systems where the channel coefficients are not available at both the transmitters and the receivers. The transmission matrix used in this scheme is based on the Weyl group. Simulation results show that this new scheme with four transmit antennas outperforms the well-known Tarokh´s differential space-time block coding (DSTBC) scheme. The spectral efficiency of this scheme can be up to 3 bps/Hz.
Keywords :
MIMO systems; radio receivers; radio transmitters; space-time block codes; transmitting antennas; 4×4 multiple input multiple output systems; DSTBC; DSTM; MIMO systems; Tarokh differential space-time block coding; Weyl group; channel coefficients; differential space-time modulation scheme; spectral efficiency; transmission matrix; transmit antennas; Bit error rate; MIMO; Modulation; Receiving antennas; Signal to noise ratio; Simulation; Transmitting antennas; DSTBC; MIMO DSTM; non-coherent;
Conference_Titel :
Signals, Circuits and Systems (ISSCS), 2013 International Symposium on
Conference_Location :
Iasi
Print_ISBN :
978-1-4799-3193-4
DOI :
10.1109/ISSCS.2013.6651229
