DocumentCode :
2230459
Title :
Capacity of the MIMO broadcast channel under realistic propagation conditions
Author :
Fugen, T. ; Kuhnert, C. ; Wiesbeck, W.
Author_Institution :
Inst. fur Hochstfrequenztechnik und Elektron., Karlsruhe Univ.
Volume :
4
fYear :
2005
fDate :
11-14 Sept. 2005
Firstpage :
2660
Abstract :
In this paper simulation results of the multiuser MIMO broadcast channel are presented. The MIMO broadcast channel corresponds to the downlink case where the base station sends simultaneously different information to several users in the cell. In contrast to many information theoretical studies, the presented results are based on a realistic MIMO channel model and are therefore a first step towards realistic performance evaluations. The channel model is called multiuser double-directional channel model (MDDCM) and was introduced recently in T. Fugen et al., (2004). It is based on a geometry approach with fixed scatterers. It enables a realistic description of the desired link as well as the spatially-colored interference in a macro-cellular environment. Based on the MDDCM the sum capacity of the MIMO broadcast channel for a varying number of users and varying antenna configurations in an isolated communication cell is presented. To achieve the sum capacity the duality to the MIMO multiple access channels is used
Keywords :
MIMO systems; broadcast channels; cellular radio; channel capacity; multiuser channels; radiofrequency interference; MDDCM; MIMO broadcast channel capacity; antenna configuration; downlink; geometry approach; macro-cellular environment; multiple access channel; multiuser double-directional channel model; propagation condition; scatterer; spatially-colored interference; Base stations; Broadcasting; Downlink; Interference; MIMO; Mobile communication; Radio frequency; Receiving antennas; Telecommunication traffic; Transmitting antennas;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2005. PIMRC 2005. IEEE 16th International Symposium on
Conference_Location :
Berlin
Print_ISBN :
9.7838007291e+012
Type :
conf
DOI :
10.1109/PIMRC.2005.1651926
Filename :
1651926
Link To Document :
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