New Space Time coding for Joint Blind Channel Estimation and Data Detection through Time Varying MIMO Channels
Channel estimation based on a training sequence limits spectral efficiency. In this paper a new Orthogonal Space-Time Block Coder (OSTBC) is proposed for estimating an unknown Multiple Input Multiple Output (MIMO) channel without the need of a training sequence. Also, the orthogonal propriety of this code is taken into account to reduce the complexity of the maximum likelihood detector (MLD). Since the Steady State Kalman filter (SS-KF) has a lower complexity and nearly the same performance, compared to the standard Kalman Filter (KF), it is used to track the MIMO channel variations.
The performance of the proposed coder is evaluated by means of Monte Carlo simulations and compared to that of optimal detection and some other coders proposed in the literature.
Keywords: MIMO systems, Orthogonal Space-Time Block Codes, Steady State Kalman Filter, Maximum Likelihood Detector.
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ABOUT THE AUTHORS
Abdelkader. Tami
received the state Engineering degree in 2000 from Telecommunications Institute, Oran, Algeria, the Master degree in Telecommunications systems and Microwaves in 2007 from the university of Saida, Algeria. He is currently a PhD student at the University of Science and Technology of Oran, Algeria. He is a membership of the LTC (Laboratory of Technology of Communications). His research interests are in MIMO wireless systems and digital communication.
Mokhtar. Keche
received the Engineering degree in Telecommunications from the Ecole Nationale Superieure des Telecommunications (ENST), Paris, France in 1978, and the Docteur Ingénieur degree and PhD from the University of Rennes in France and the University of Nottinghamin UK in 1982 and 1998, respectively. He is a Professor at the Electronic Department of University of Sciences and Technology, Mohamed Boudiaf, Oran (Algeria). His research interests are in the area of Digital communications, Array Processing, and Multi- target tracking.
Abdelaziz .Ouamri
was born in Algeria. He received the Engineer diploma degree in Electrical Engineering from ENSI(CAEN), the DEA degree in automatic and signal processing from the University Paris XI in1979, the Doctor Engineer in 1981and the Doctorat of state degree in signal processing from the University Paris XI in 1986,France. He is currently a Professor at the University of Sciences and Technology of Oran, Algeria. His research interests are focused on high resolution spectral array processing methods, detection and tracking moving objects. In 1990 he received the senor award from the IEEE Signal Processing Society in the Spectrum Estimation Technical area.
Abdelkader. Tami
received the state Engineering degree in 2000 from Telecommunications Institute, Oran, Algeria, the Master degree in Telecommunications systems and Microwaves in 2007 from the university of Saida, Algeria. He is currently a PhD student at the University of Science and Technology of Oran, Algeria. He is a membership of the LTC (Laboratory of Technology of Communications). His research interests are in MIMO wireless systems and digital communication.
Mokhtar. Keche
received the Engineering degree in Telecommunications from the Ecole Nationale Superieure des Telecommunications (ENST), Paris, France in 1978, and the Docteur Ingénieur degree and PhD from the University of Rennes in France and the University of Nottinghamin UK in 1982 and 1998, respectively. He is a Professor at the Electronic Department of University of Sciences and Technology, Mohamed Boudiaf, Oran (Algeria). His research interests are in the area of Digital communications, Array Processing, and Multi- target tracking.
Abdelaziz .Ouamri
was born in Algeria. He received the Engineer diploma degree in Electrical Engineering from ENSI(CAEN), the DEA degree in automatic and signal processing from the University Paris XI in1979, the Doctor Engineer in 1981and the Doctorat of state degree in signal processing from the University Paris XI in 1986,France. He is currently a Professor at the University of Sciences and Technology of Oran, Algeria. His research interests are focused on high resolution spectral array processing methods, detection and tracking moving objects. In 1990 he received the senor award from the IEEE Signal Processing Society in the Spectrum Estimation Technical area.
