Title :
Ergodic Capacity of LTE Downlink Multiuser MIMO Systems
Author :
Lin, Zihuai ; Vucetic, Branka ; Mao, Jian
Author_Institution :
Sch. of Electr. & Inf. Eng., Univ. of Sydney, Sydney, NSW
Abstract :
This paper presents the analysis of the average channel capacity and the SINR distribution for multiuser Multiple Input Multiple Output (MIMO) systems in combination with the base station based packet scheduler. The packet scheduler is used to exploit the available multiuser diversity in the time, frequency and spatial domains. The analysis model is carried out for 3 GPP LTE downlink transmission. Two Spatial Division Multiplexing (SDM) multiuser MIMO schemes in the context of LTE downlink transmission are investigated. They are Single User (SU) and Multi-user (MU) MIMO schemes. In general, the outage probability for systems using SU-MIMO scheme is larger than the one with MU-MIMO scheme. Compared with the systems without preceding, linear preceding can improve the outage probability. The paper contributions are the derivation of a mathematical expression of the SINR distribution and the average channel capacity for multiuser MIMO systems with a frequency domain packet scheduler.
Keywords :
MIMO communication; diversity reception; multiplexing; 3GPP LTE downlink transmission; SINR distribution; average channel capacity; ergodic capacity; frequency domain packet scheduler; multiple input multiple output systems; multiuser MIMO systems; multiuser diversity; outage probability; single user MIMO schemes; Australia; Base stations; Channel capacity; Downlink; Frequency diversity; Frequency domain analysis; MIMO; Receiving antennas; Scheduling algorithm; Signal to noise ratio;
Conference_Titel :
Communications, 2008. ICC '08. IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2075-9
Electronic_ISBN :
978-1-4244-2075-9
DOI :
10.1109/ICC.2008.629
