Title :
Combining Eigen-Beamforming and Differential Space-Time Modulation for Ricean Fading Channels
Author :
Lu, Yao ; An, Jianping ; Wu, Yanbo
Author_Institution :
Dep. of Electron. Eng., Beijing Inst. of Technol., Beijing
Abstract :
In this paper eigen-beamforming and differential space-time modulation (DSTM) are combined together to construct a robust and relatively simple system for multiple-input multiple-output (MIMO) Ricean fading channels. A transmission scheme with feedback link is developed here that combines beamforming with differential multi-antenna modulation based on orthogonal space-time block coding. The power loading algorithm of the eigen-beamformer is derived based on the principle of minimizing error probability bound. The optimality leads to better performance than traditional STBC transmission scheme. The simulation results proved that the combination of the eigen-beamforming and DSTM is an effective way to solve the problem with performance, complexity, and transmission rate for wireless communications.
Keywords :
MIMO communication; Rician channels; antenna arrays; array signal processing; block codes; channel coding; error statistics; modulation coding; orthogonal codes; space-time codes; DSTM; MIMO channel; Ricean fading channels; differential multiantenna modulation; differential space-time modulation; eigen beamforming; error probability bound; feedback link; multiple-input multiple-output channels; orthogonal space-time block coding; power loading algorithm; wireless communications; Array signal processing; Block codes; Error probability; Fading; Feedback; MIMO; Modulation coding; Optical modulation; Robustness; Wireless communication;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2008. WiCOM '08. 4th International Conference on
Conference_Location :
Dalian
Print_ISBN :
978-1-4244-2107-7
Electronic_ISBN :
978-1-4244-2108-4
DOI :
10.1109/WiCom.2008.159
