Research Article
A Real-Time FPGA-Based Implementation of a High-Performance MIMO-OFDM Mobile WiMAX Transmitter
@INPROCEEDINGS{10.1007/978-3-642-29479-2_5, author={Oriol Font-Bach and Nikolaos Bartzoudis and Antonio Pascual-Iserte and David L\^{o}pez Bueno}, title={A Real-Time FPGA-Based Implementation of a High-Performance MIMO-OFDM Mobile WiMAX Transmitter}, proceedings={Mobile Lightweight Wireless Systems. Third International ICST Conference, MOBILIGHT 2011, Bilbao, Spain, May 9-10, 2011, Revised Selected Papers}, proceedings_a={MOBILIGHT}, year={2012}, month={10}, keywords={MIMO testbeds IEEE 802.16e real-time systems space-time coding FPGAs DSP}, doi={10.1007/978-3-642-29479-2_5} }- Oriol Font-Bach
Nikolaos Bartzoudis
Antonio Pascual-Iserte
David López Bueno
Year: 2012
A Real-Time FPGA-Based Implementation of a High-Performance MIMO-OFDM Mobile WiMAX Transmitter
MOBILIGHT
Springer
DOI: 10.1007/978-3-642-29479-2_5
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.