Title :
Predicting the pruning potential in sphere decoding for multiple-input multiple-output detection
Author :
Jang, Hwanchol ; Lee, Heung-No ; Nooshabadi, Saeid
Author_Institution :
Dept. of Inf. & Commun., Gwangju Inst. of Sci. & Technol., Gwangju, South Korea
Abstract :
In this work, a method for predicting the pruning potential of a sphere constraint (SC) for sphere decoding (SD) is developed. Because the direct prediction of the pruning potential is not easy, the orthotope constraint (OC), an approximation of SC, is used instead of SC. This pruning potential prediction makes it possible to increase pruning at the root of the search tree in SD, considering it is the most desirable location for pruning.
Keywords :
MIMO communication; maximum likelihood decoding; maximum likelihood detection; tree searching; MIMO detection; SC approximation; SD; multiple input multiple output; orthotope constraint; pruning potential prediction; search tree; sphere constraint; sphere decoding; Computational modeling; Decoding; Electronic mail; Euclidean distance; MIMO; Signal to noise ratio; Vectors; maximum-likelihood (ML) detection; multiple input multiple output (MIMO); sphere decoding (SD);
Conference_Titel :
Signals, Systems and Computers (ASILOMAR), 2011 Conference Record of the Forty Fifth Asilomar Conference on
Conference_Location :
Pacific Grove, CA
Print_ISBN :
978-1-4673-0321-7
DOI :
10.1109/ACSSC.2011.6190147
