Doctoral Dissertations


Fei Ren


"This dissertation investigates several main challenges to implementing hardware-based wireless fading channel emulators with emphasis on incorporating accurate correlation properties. Multiple-input multiple-output (MIMO) fading channels are usually triply-selective with three types of correlation: temporal correlation, inter-tap correlation, and spatial correlation. The proposed emulators implement the triply-selective fading Channel Impulse Response (CIR) by incorporating the three types of correlation into multiple uncorrelated frequency-flat Rayleigh fading waveforms while meeting real-time requirements for high data-rate, large-sized MIMO, and/or long CIR channels. Specifically, mixed parallel-serial computational structures are implemented for Kronecker products of the correlation matrices, which makes the best tradeoff between computational speed and hardware usage. Five practical fading channel examples are implemented for RF or underwater acoustic MIMO applications. The performance of the hardware emulators are verified with an Altera Field-Programmable Gate Array (FPGA) platform and the results match the software simulators in terms of statistical and correlation properties. The dissertation also contributes to the development of a 2-by-2 MIMO transceiver testbench that is used to measure real-world fading channels. Intensive channel measurements are performed for indoor fixed mobile-to-mobile channels and the estimated CIRs demonstrate the triply-selective correlation properties"--Abstract, page iv.


Zheng, Y. Rosa

Committee Member(s)

Cheng, Maggie Xiaoyan
Grant, Steven L.
Sarangapani, Jagannathan, 1965-
Moss, Randy Hays, 1953-


Electrical and Computer Engineering

Degree Name

Ph. D. in Electrical Engineering


National Science Foundation (U.S.)
United States. Office of Naval Research


Missouri University of Science and Technology

Publication Date

Fall 2011

Journal article titles appearing in thesis/dissertation

  • Hardware emulation of wideband correlated multiple-input multiple-output fading channels
  • Novel emulator for discrete-time MIMO triply-selective fading channels
  • Hardware implementation of triply selective Rayleigh fading channel simulators
  • Low-complexity hardware implementation of discrete-time frequency-selective Rayleigh fading channels
  • Validation of the triply selective fading channel model through a MIMO test bed and experimental results


xiii, 107 pages

Note about bibliography

Includes bibliographical references.


© 2011 Fei Ren, All rights reserved.

Document Type

Dissertation - Open Access

File Type




Subject Headings

Field programmable gate arrays
MIMO systems
Radio -- Transmitters and transmission -- Fading
Wireless communication systems

Thesis Number

T 9903

Print OCLC #


Electronic OCLC #