Paper Info
Title
Capacity Bound of MIMO Systems with MPSK Modulation and Superimposed Pilots*This work was supported by the National Natural Science Foundation of China (No. 90204001) and the National High-Tech Research and Development (863) Program of China (No. 2003AA12331002).
Abstract
The enormous capacity potential of multiple-input multiple-output (MIMO) is based on some unrealistic assumptions, such as the complete channel state information (CCSI) at the receiver and Gaussian distributed data. In this paper, in frequency-flat Rayleigh fading environment, we investigate the ergodic capacity of MIMO systems with M-ary phase-shift keying (MPSK) modulation and superimposed pilots for channel estimation. With linear minimum mean square error (LMMSE) channel estimation, the optimal pilots design is presented. For the mathematical tractability, we also derive an easy-computing closed-form lower bound of the channel capacity. Furthermore, the optimal power allocation between the data and pilots is investigated by numerical optimization. It is shown that more power should be devoted to the data in low SNR environments and to the pilots in high SNR environments.
Year
DOI
Venue
2005
10.1093/ietfec/e88-a.10.2937
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Keywords
DocType
Volume
mimo system,complete channel state information,mpsk modulation,channel capacity,high-tech research,low snr environment,mimo systems,optimal power allocation,capacity bound,enormous capacity potential,national natural science foundation,optimal pilots design,high snr environment,channel estimation,ergodic capacity
Journal
E88-A
Issue
ISSN
Citations 
10
0916-8508
0
PageRank 
References 
Authors
0.34
0
4
Name
Order
Citations
PageRank
Yifei Zhao1947.61
Ming Zhao273.21
Jing Wang31038105.16
Yong Ren4104499.99