公开(公告)号：US20190288882A1

公开(公告)日：2019-09-19

申请号：US16344545

申请日：2017-09-27

Applicant: King Abdullah University of Science and Technology

Inventor： Hatem LTAIEF ,  Zouheir REZKI ,  Mohamed Amine ARFAOUI ,  Mohamed-Slim ALOUINI ,  David E. KEYES

IPC: H04L25/03 ,  H04B7/0413

Abstract: A method of detecting u 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 receiv ed 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.

公开(公告)号：US20200322190A1

公开(公告)日：2020-10-08

申请号：US16904912

申请日：2020-06-18

Applicant: King Abdullah University of Science and Technology

Inventor： Hatem LTAIEF ,  Zouheir REZKI ,  Mohamed Amine ARFAOUI ,  Mohamed-Slim ALOUINI ,  David E. KEYES

IPC: H04L25/03 ,  H04B7/0413

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.

公开(公告)号：US20210288697A1

公开(公告)日：2021-09-16

申请号：US17201405

申请日：2021-03-15

Applicant: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Mohamed-Slim ALOUINI ,  David Elliot KEYES ,  Hatem LTAIEF ,  Adel DABAH ,  Zouheir REZKI

IPC: H04B7/0452 ,  H04B7/0417

Abstract: A detection method is presented that combines two non-linear approaches, the Sphere Decoder (SD) and the K-best algorithms, to identify symbols transmitted over a communication channel in a multiple input-multiple output (MIMO) communication system. A parallel implementation on a x86 computer system is presented, which reduces the number of evaluations by branching over plural symbols and diversifies the search process, which may rapidly reduce the radius and thus, the time complexity of the computer system.