Title :
Adaptive mode and modulation coding switching scheme in MIMO multicasting system
Author :
Xiang Chen ; Jenq-Neng Hwang ; Po-Han Wu ; Hsuan-Jung Su ; Chung-Nan Lee
Author_Institution :
Dept. of Electr. Eng., Univ. of Washington, Seattle, WA, USA
Abstract :
This paper proposes an adaptive mode and modulation coding switching (AMMCS) scheme for multiple-input multiple-output (MIMO) multicasting system. More specifically, in addition to the adaptively chosen modulation and error coding, two types of MIMO modes are adaptively switched, i.e., between spatial multiplexing (SM) mode, which can achieve higher data rate, and spatial diversity (SD) mode, which can provide higher received signal-to-noise ratio (SNR). Analytical equations for scheduling rate and average spectral efficiency are derived for both SD and SM modes in a 2×2 MIMO system. Simulation results well justify our analytical equations and also demonstrate that our proposed scheme can achieve higher scheduling rate when SNR is low and higher spectral efficiency when SNR is high.
Keywords :
MIMO communication; adaptive codes; adaptive modulation; diversity reception; modulation coding; multicast communication; radio receivers; scheduling; space division multiplexing; AMMCS; MIMO; SD; SM; SNR; adaptive mode and modulation coding switching scheme; average spectral efficiency; error coding; multiple-input multiple-output multicasting system; scheduling rate; signal-to-noise ratio; spatial diversity mode; spatial multiplexing mode; MIMO; Modulation; Multicast communication; Signal to noise ratio; Simulation; Switches; Wireless communication;
Conference_Titel :
Circuits and Systems (ISCAS), 2013 IEEE International Symposium on
Conference_Location :
Beijing
Print_ISBN :
978-1-4673-5760-9
DOI :
10.1109/ISCAS.2013.6571875
