Efficient sphere detector algorithm for large antenna communication systems using graphic processor unit (gpu) hardware accelerators

Hatem Ltaief (Inventor), Zouheir Rezki (Inventor), Mohamed Amine Arfaoui (Inventor), Mohamed-Slim Alouini (Inventor), David E. Keyes (Inventor)

Research output: Patent

Abstract

A method of detecting a symbol transmitted over a communication channel in a multiple input-multiple output communication system. The method includes receiving a plurality of symbols transmitted over a communication channel of a multiple input- multiple output communication system. A sphere radius is initialized based on attributes of the communication channel. A first matrix of possible transmitted signals is defined as well as a second matrix of received symbols. The matrix of possible transmitted signals is searched using a breadth-first search (BFS). Each level of the search tree is analyzed utilizing matrix multiplication to determine selected symbols satisfying the initialized sphere radius. A maximum likelihood solution is of the transmitted symbols is derived based on the selected symbols.
Original languageEnglish (US)
Patent numberWO2018078465A1
StatePublished - May 3 2018

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