Abstract
The Multiple Input Multiple Output (MIMO)-Orthogonal Frequency Division Multiplexing (OFDM) is considered a key technology in modern wireless-access communication systems. The IEEE 802.16e standard, also denoted as mobile WiMAX, utilizes the MIMO-OFDM technology and it was one of the first initiatives towards the roadmap of fourth generation systems. This paper presents the PHY-layer design, implementation and validation of a high-performance real-time 2x2 MIMO mobile WiMAX transmitter that accounts for low-level deployment issues and signal impairments. The focus is mainly laid on the impact of the selected high bandwidth, which scales the implementation complexity of the baseband signal processing algorithms. The latter also requires an advanced pipelined memory architecture to timely address the data-path operations that involve high memory utilization. We present in this paper a first evaluation of the extracted results that demonstrate the performance of the system using a 2x2 MIMO channel emulation.
This work was partially supported by the European Commission under projects NEWCOM++ (216715) and BuNGee (248267); by the Catalan Government under grants 2009 SGR 891 and 2010 VALOR 198; and by the Spanish Government under project TEC2008-06327-C03 (MULTI-ADAPTIVE) and Torres Quevedo grants PTQ-08-01-06441, PTQ06-02-0540, PTQ06-2-0553.
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Font-Bach, O., Bartzoudis, N., Pascual-Iserte, A., López Bueno, D. (2012). A Real-Time FPGA-Based Implementation of a High-Performance MIMO-OFDM Mobile WiMAX Transmitter. In: Del Ser, J., et al. Mobile Lightweight Wireless Systems. Mobilight 2011. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 81. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-29479-2_5
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DOI: https://doi.org/10.1007/978-3-642-29479-2_5
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