DocumentCode :
1986499
Title :
Capacity bounds of downlink network MIMO systems with inter-cluster interference
Author :
Zhiyuan Jiang ; Sheng Zhou ; Zhisheng Niu
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
fYear :
2012
fDate :
3-7 Dec. 2012
Firstpage :
4612
Lastpage :
4617
Abstract :
To fully understand the capacity of clustered network-MIMO systems and analyze the system performance (throughput, energy-efficiency or quality of service), one must have an analytical expression of the system capacity or capacity bounds. In this paper, the impact of cluster size on the downlink network-MIMO system capacity is analyzed considering inter-cluster interference (ICLI) based on the 1-dimensional Wyner model. For the nonfading channels, the lower and upper bounds of the per-cell capacity with ICLI are derived. The per-cell capacity with ICLI demonstrates a linear growth versus the cluster size in the interference-limited regime due to ICLI. The lower and upper bounds are generalized to a 2-dimensional cellular system. The ICLI turns out to have a great impact on the system capacity when the cluster size is small. Introducing Rayleigh fading channels, assuming the number of users in each cell is sufficiently large, a lower bound of the per-cell ergodic capacity with ICLI is derived.
Keywords :
MIMO communication; Rayleigh channels; channel capacity; quality of service; 1-dimensional Wyner model; 2-dimensional cellular system; MIMO systems; Rayleigh fading channels; downlink network capacity bounds; inter-cluster interference; nonfading channels; per-cell capacity; per-cell ergodic capacity; quality of service; system capacity;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Global Communications Conference (GLOBECOM), 2012 IEEE
Conference_Location :
Anaheim, CA
ISSN :
1930-529X
Print_ISBN :
978-1-4673-0920-2
Electronic_ISBN :
1930-529X
Type :
conf
DOI :
10.1109/GLOCOM.2012.6503846
Filename :
6503846
Link To Document :
بازگشت