Adaptive Modulation for MIMO Multiplexing under Average BER Constraints and Imperfect CSI

2006 ◽  
Author(s):  
Jose Paris ◽  
Andrea Goldsmith
Keyword(s):  
Adaptive Modulation ◽  
Imperfect Csi ◽  
Average Ber

Design of adaptive modulation using imperfect CSI in MIMO systems

2004 ◽  
Vol 40 (17) ◽  
pp. 1073 ◽  
Author(s):  
Z. Zhou ◽  
B. Vucetic
Keyword(s):  
Mimo Systems ◽  
Adaptive Modulation ◽  
Imperfect Csi

A Pre-Coding Scheme for Minimizing the Average BER Applicable to Cooperative Multi-Cell System

2011 ◽  
Vol 58-60 ◽  
pp. 2237-2244
Author(s):  
Jia Wu ◽  
Xin Su ◽  
Hui Gao ◽  
Zhang Zhang
Keyword(s):  
Data Streams ◽  
Low Complexity ◽  
Cell System ◽  
Base Station ◽  
Imperfect Csi ◽  
Channel State ◽  
Coding Scheme ◽  
Coding Method ◽  
Average Ber ◽  
Value Decomposition

In this paper, we design a pre-coding method in cooperative multi-cell system, which is the singular value decomposition (SVD) processing followed by a power allocation scheme of minimizing the average BER of the system under a set of every base station (BS) transmit power constraints. This method further reduces the residual interference through power efficiently allocated among the data streams. Moreover, taking different channel state information (CSI) error variances among user equipments (UEs) into consideration, the proposed low-complexity pre-coding scheme is robust to imperfect CSI.

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