Architecture for detection in MIMO wireless systems

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Title: Architecture for detection in MIMO wireless systems
Author: Amiri, Kiarash
Advisor: Cavallaro, Joseph R.
Degree: Master of Science thesis
Abstract: In this work, we study two main classes of detectors for spatially multiplexed Multiple-input Multiple-output (MIMO) systems. For the first group, i.e. hard-decision detectors, we study sphere detectors, and propose novel algorithms as well as efficient architectures which make them suitable for low-complexity implementations. Furthermore, different variations of such detectors are prototyped on Xilinx FPGAs embedded on Wireless Open-access Research Platform (WARP). The second class of detectors are soft-decision detectors where, generally, soft sphere detectors are used; however, we study a new class of detectors that can serve the same purpose through a stochastic approach known as Markov Chain Monte Carlo (MCMC) technique. A general architecture with various complexity reduction techniques is proposed for this scenario, and it is shown that MCMC achieves better performance compared to sphere detector; while it requires less computation when higher order modulations are used.
Citation: Amiri, Kiarash. (2007) "Architecture for detection in MIMO wireless systems." Masters Thesis, Rice University.
Date: 2007

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