Title :
Transmit power and bit allocation for the MIMO system
Author :
Fan, Lingyan ; He, Chen ; Wang, Zhiying ; Che, Xiaolin
Author_Institution :
Dept. of Electron. Eng., Shanghai Jiao Tong Univ.
Abstract :
The adaptive modulation is an important effective technique, which can be applied in the multiple-input-multiple-output (MIMO) system to achieve a high average spectral efficiency. In this paper, an adaptive minimum transmit power modulation scheme under constant data rate and fixed bit error rate (BER) for the spatial MIMO system is proposed. It adjusts the modulation order and allocates the transmit power to each spatial subchannel when meeting the user´s requirements at the cost of minimum transmission power. Computer simulation results present the efficiency of the proposed scheme
Keywords :
MIMO systems; adaptive modulation; channel allocation; error statistics; radio networks; BER; adaptive minimum transmit power modulation scheme; average spectral efficiency; bit allocation; bit error rate; computer simulation; multiple-input-multiple-output; power allocation; spatial MIMO system; spatial subchannel; Bit error rate; Bit rate; Computer simulation; Helium; MIMO; Neural networks; Power system modeling; Receiving antennas; Transmitting antennas; Wireless communication;
Conference_Titel :
Global Telecommunications Conference, 2005. GLOBECOM '05. IEEE
Conference_Location :
St. Louis, MO
Print_ISBN :
0-7803-9414-3
DOI :
10.1109/GLOCOM.2005.1578285
