Title :
A trilinear decompositionD approach fof Space-Time-Frequency multiple-access wireless systems
Author :
De Almeida, André L F ; Favier, Gérard ; Fernandes, Carlos A R ; Mota, João C M
Author_Institution :
UNSA-CNRS, Sophia Antipolis
Abstract :
A new multiple-antenna transmission framework is proposed for multicarrier multiple-access wireless communication systems. The trilinear tensor (PARAFAC) decomposition is used to model a multiple-input multiple-output (MIMO) space-time-frequency (STF) scheme which consists in jointly multiplexing and spreading multiple data streams across space (transmit antennas), time (chips) and frequency (subcarriers) using a trilinear spreading code. The proposed framework affords a variable degree of diversity across the three signal dimensions by adjusting the dimensions of the trilinear spreading code. It also allows blind detection at the receiver by means of the alternating least squares algorithm.
Keywords :
MIMO communication; codes; multi-access systems; multiplexing; radiocommunication; signal processing; blind detection; least squares algorithm; multicarrier multiple-access wireless communication system; multiple data stream; multiple-antenna transmission framework; multiple-input multiple-output space-time-frequency scheme; space-time-frequency multiple-access wireless systems; trilinear decomposition; trilinear spreading code; trilinear tensor decomposition; Frequency; Least squares methods; MIMO; Radio transmitters; Receiving antennas; Scattering; Telecommunications; Tensile stress; Transmitting antennas; Wireless communication;
Conference_Titel :
Signal Processing Advances in Wireless Communications, 2007. SPAWC 2007. IEEE 8th Workshop on
Conference_Location :
Helsinki
Print_ISBN :
978-1-4244-0955-6
Electronic_ISBN :
978-1-4244-0955-6
DOI :
10.1109/SPAWC.2007.4401406
