Abstract
A low-complexity hardware emulator is proposed for wideband, correlated, multiple-input multiple-output (MIMO) fading channels. the proposed emulator generates multiple discrete-time channel impulse responses (CIR) at the symbol rate and incorporates three types of correlation functions of the subchannels via Kronecker product: The spatial correlation between transmit or receive elements, temporal correlation due to Doppler shifts, and inter-tap correlation due to multipaths. the Kronecker product is implemented by a novel mixed parallel-serial (mixed P-S) matrix multiplication method to reduce memory storage and to meet the real-time requirement in high data-rate, large MIMO size, or long CIR systems. We present two practical MIMO channel examples implemented on an Altera Stratix III EP3SL150F FPGA DSP development kit: A 2-by-2 MIMO WiMAX channel with a symbol rate of 1.25 million symbols/second and a 2-by-6 MIMO underwater acoustic channel with 100-tap CIR. Both examples meet real-time requirement using only 12?14% of hardware resources of the FPGA. © Springer Science Business Media, LLC 2011.
Recommended Citation
F. Ren and Y. R. Zheng, "Hardware Emulation of Wideband Correlated Multiple-input Multiple-output Fading Channels," Journal of Signal Processing Systems, vol. 66, no. 3, pp. 273 - 284, Springer, Jan 2012.
The definitive version is available at https://doi.org/10.1007/s11265-011-0605-y
Department(s)
Electrical and Computer Engineering
Keywords and Phrases
Channel emulator; Correlated MIMO fading channel; FPGA implementation; Underwater acoustic channel; WiMAX channel
International Standard Serial Number (ISSN)
1939-8115; 1939-8018
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Springer, All rights reserved.
Publication Date
01 Jan 2012
Comments
National Science Foundation, Grant 0846486