Implementation of a real-time multiple input multiple output channel estimator on the smart antenna software radio test system platform using the Xilinx Virtex 2 Pro Field Programmable Gate Array

2006 ◽  
Author(s):  
Peter Green ◽  
Desmond Taylor
Keyword(s):  
Real Time ◽  
Field Programmable Gate Array ◽  
Smart Antenna ◽  
Multiple Input Multiple Output ◽  
Software Radio ◽  
Test System ◽  
Output Channel ◽  
Multiple Input ◽  
Field Programmable ◽  
Input Multiple Output

Field Programmable Gate Array Based Testbed for Investigating Multiple Input Multiple Output Signal Transmission in Indoor Environments

2009 ◽  
pp. 474-499
Author(s):  
Konstanty Bialkowski ◽  
Adam Postula ◽  
Amin Abbosh ◽  
Marek Bialkowski
Keyword(s):  
Field Programmable Gate Array ◽  
Signal Transmission ◽  
Multiple Input Multiple Output ◽  
Indoor Environments ◽  
Front End ◽  
Rf Front End ◽  
Multiple Input ◽  
Field Programmable ◽  
Input Multiple Output ◽  
Gate Array

This chapter introduces the concept of Multiple Input Multiple Output (MIMO) wireless communication system and the necessity to use a testbed to evaluate its performance. A comprehensive review of different types of testbeds available in the literature is presented. Next, the design and development of a 2×2 MIMO testbed which uses in-house built antennas, commercially available RF chips for an RF front end and a Field Programmable Gate Array (FPGA) for based signal processing is described. The operation of the developed testbed is verified using a Channel Emulator. The testing is done for the case of a simple Alamouti QPSK based encoding and decoding scheme of baseband signals.

scholarly journals MIMO Fading Emulator Development with FPGA and Its Application to Performance Evaluation of Mobile Radio Systems

2017 ◽  
Vol 2017 ◽  
pp. 1-15 ◽  
Author(s):  
Yoshio Karasawa ◽  
Katsuhiro Nakada ◽  
Guijiang Sun ◽  
Rikako Kotani
Keyword(s):  
Channel Model ◽  
Multiple Input Multiple Output ◽  
New Developments ◽  
Performance Limit ◽  
Stage Scheme ◽  
Mobile Radio Systems ◽  
Multiple Input ◽  
Field Programmable ◽  
Input Multiple Output ◽  
Radio Systems

We present four new developments for a multiple-input multiple-output (MIMO) over-the-air measurement system based on our previous studies. The first two developments relate to the channel model for multipath environment generation. One is a further simplification of the circuit configuration without performance degradation by reducing the number of delay generation units, which dominate the performance limit when implementing the circuit on a field-programmable gate array (FPGA). The other is to realize spatial correlation characteristics among the input ports on the transmission side, whereas the previously proposed channel model did not consider this correlation. The third development involves the details of implementing the MIMO fading emulator on an FPGA as a two-stage scheme. The fourth is the demonstration of application examples of the developed system.

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