Title :
Power allocation and modulation in MIMO system with channel mean feedback
Author :
Yi, Liu ; Hailin, Zhang
Author_Institution :
Nat. Key Lab. of ISN, Xidian Univ., Xi´´an, China
Abstract :
In this paper, we use the mean feedback model to describe the CSI at the transmitter in MIMO systems and propose a dynamic power allocation scheme combined with adaptive modulation. This scheme resolves both power allocation and adaptive modulation problems in MIMO system. It is practical as well as simple. The simulation results show that this scheme achieves a large capacity while maintaining a certain system QoS.
Keywords :
MIMO systems; adaptive modulation; antenna arrays; feedback; multipath channels; quality of service; CSI; MIMO system; QoS; adaptive modulation; channel state information; dynamic power allocation scheme; mean feedback model; multiple input multiple output; quality of service; transmitter; Broadband communication; Delay; Diversity methods; Feedback; MIMO; Power system modeling; Scattering; Spatial resolution; Transmitters; Transmitting antennas;
Conference_Titel :
Advanced Information Networking and Applications, 2006. AINA 2006. 20th International Conference on
Print_ISBN :
0-7695-2466-4
DOI :
10.1109/AINA.2006.273
