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A real-time FPGA-based implementation of a high-performance MIMO-OFDM transceiver featuring a closed-loop communication scheme
Font Bach, Oriol; Bartzoudis, Nikolaos; Pascual Iserte, Antonio; López Bueno, David
Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. A&MP - Grup de Processament d'Arrays i Sistemes Multicanal
In this paper we present the FPGA implementation of a multi-antenna Orthogonal Frequency-Division Multiplexing (OFDM) transmitter and receiver featuring a closed-loop (CL) communication scheme. The PHY-layer development follows the specifications of the mobile WiMAX standard, whereas the limited MAC functionality is using custom specifications. In the implemented CL scheme, the transmitter applies a Transmit Antenna Selection (TAS) decision based on the instantaneous Channel State Information (CSI), which is calculated at the receiver and fed back to the transmitter. The RTL implementation addresses the challenge of efficiently accommodating two transmission schemes with optimal reuse of FPGA resources. The adaptive subcarrier allocation can be thoroughly evaluated only when prototyped in a real-time platform, such as the one described in this paper. The results verified that the CL system is performing better than its open-loop counterpart.
Peer Reviewed
Àrees temàtiques de la UPC::Enginyeria dels materials
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Comunicacions mòbils
Mobile communication systems
Sistemes MIMO
Comunicacions mòbils, Sistemes de
Senyal, Teoria del (Telecomunicació)
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
Institute of Electrical and Electronics Engineers (IEEE)
         

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