A single FPGA filter-based multipath fading emulator
Authors: 
Saeed Fouladi Fard, Amirhossein Alimohammad, Bruce Cockburn, Christian SchlegelAuthors Info & Claims
Abstract
Emulation of fading channels is a key step in the design and verification of wireless communication systems. Testing wireless transceivers with actual fading channels is inconvenient due to unrepeatable and uncontrollable channel conditions. In this paper we present a compact field-programmable gate array (FPGA) implementation for a circuit that generates temporally-correlated fading variates for emulating multipath fading radio channels. The implemented fading emulator is flexible enough to model different propagation scenarios accurately and is compact enough that it can be implemented on the same FPGA with the design under test (DUT) for greater emulation efficiency and speed-up. Several streams of Rayleigh or Rician fading variates are generated by passing independent samples of Gaussian noise through spectrum shaping filters. The new baseband emulator is fully parameterizable and can emulate a wide variety of single and multiple antenna scenarios.
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- A single FPGA filter-based multipath fading emulator
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Published: 30 November 2009
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