Title :
Capacity and game-theoretic power allocation for multiuser MIMO channels with channel estimation error
Author :
Zhong, Wei ; Xu, Youyun ; Cai, Yueming
Author_Institution :
Inst. of Commun. Eng., PLA Univ. of Sci. & Technol., Nanjing, China
Abstract :
In this paper, we consider a multiuser multiple inputs and multiple output (MIMO) system. We study the erodogic capacity bound of the multi-access channels with channel estimation error, which has never been investigated before. Game theory is adopted to model the MIMO multi-access channels, which gives us a new understanding for the analysis of MIMO multi-access channels. Game-theoretic power allocation is used, which borrows the idea from iterative water-filling power allocation, to solve the Nash equilibrium and maximize the sum capacity of the multiuser MIMO system with channel estimation error. The effect of the channel estimation error to the capacity of multiuser MIMO multi-access channel is also studied.
Keywords :
MIMO systems; channel capacity; channel estimation; game theory; iterative methods; multiuser channels; Nash equilibrium; channel capacity; channel estimation error; game-theoretic power allocation; iterative water-filling power allocation; multiaccess channels; multiple inputs and multiple output system; multiuser MIMO channels; AWGN; Channel capacity; Channel estimation; Channel state information; Covariance matrix; Game theory; Interference; MIMO; Mutual information; Power engineering and energy;
Conference_Titel :
Communications and Information Technology, 2005. ISCIT 2005. IEEE International Symposium on
Print_ISBN :
0-7803-9538-7
DOI :
10.1109/ISCIT.2005.1566954
