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Hardware MIMO Channel Simulator for Cooperative and Heterogeneous 5G Networks with VLC Signals

Abstract : This paper presents the design of an 8 × 8 Multiple-Input Multiple-Output (MIMO) hardware simulator for cooperative time-varying propagation channels (based on relays) using heterogeneous systems (LTE-A and 802.11ac) with Visible Light Communications (VLC) signals. The simulator reproduces a desired radio channel scenario and makes it possible to test “on table” different systems. It uses different impulse responses to cover many types of channels by merging TGn models, 3GPP-LTE models, outdoor-to-indoor measurements results and VLC models. An algorithm is introduced to convert the measured impulse responses from 200 MHz sample frequency to 50 MHz to be compatible with LTE-A signals. A specific architecture of the simulator digital block is presented to characterize 5G scenarios. The architecture is designed on a Xilinx Virtex-VII XC7VX690T Field Programmable Gate Array (FPGA). Its accuracy and FPGA occupation are analyzed.
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https://hal.inria.fr/hal-01434850
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Bachir Habib, Badih Baz. Hardware MIMO Channel Simulator for Cooperative and Heterogeneous 5G Networks with VLC Signals. 14th International Conference on Wired/Wireless Internet Communication (WWIC), May 2016, Thessaloniki, Greece. pp.171-183, ⟨10.1007/978-3-319-33936-8_14⟩. ⟨hal-01434850⟩

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