Implementation of the OFDM Physical Layer Using FPGA
Orthogonal Frequency Division Multiplexing (OFDM) transmissions are emerging as important modulation technique because of its capacity of ensuring high level robustness against interference. OFDM is a modulation technique which is now widely used in various high speed mobile and wireless communication systems as; fixed Wi-Fi system (IEEE 802.11a standard), mobile Wi-Fi system (IEEE 802.11b standard), fixed WiMAX system (IEEE 802.16a standard), and mobile WiMAX system (IEEE 802.16e standard). In this paper the design and implementation of OFDM system will be illustrated as well as a detailed simulation of the OFDM system using MATLAB-2011 program to study the effect of various design parameters on the system performance, also the design and simulation results for some standards of OFDM using MATLAB will be observed as a practical system examples that uses OFDM as a modulation technique. OFDM transceiver will be implemented using FPGA Spartan 3A kit. All modules are designed using VHDL programming language.
Keywords: Orthogonal Frequency Division Multiplexing (OFDM); Field Programmable Gate Array (FPGA); Hardware Description Language (HDL); Inverse Fast Fourier Transform (IFFT); Fast Fourier Transform (FFT); Cyclic Prefix (CP); Bit Error Rate (BER); Signal to Noise Ratio (SNR).
Download Full-Text
ABOUT THE AUTHORS
M.A. Mohamed
Mohamed Abdel-Azim received the PhD degree in Electronics and Communications Engineering from the Faculty of Engineering-Mansoura University-Egypt by 2006. After that he worked as an assistant professor at the Electronics & Communications engineering department until now. He has 40 publications in various international journals and conferences. His current research interests are in multimedia processing, wireless communication systems, and Field Programmable Gate Array (FPGA) applications.
A.S. Samarah
Dead of the electronics and communications engineering department.
M.I. Fath Allah
Mohamed Ismail received the BSC degree in Electronics and Communications Engineering from the Faculty of Engineering-Mansoura University-Egypt by 2007. After that he worked as a demonstrator at the higher institute of engineering and technology of delta-Mansoura-Egypt. His current research interests are in wireless communication systems and Field Programmable Gate Array (FPGA) applications.
M.A. Mohamed
Mohamed Abdel-Azim received the PhD degree in Electronics and Communications Engineering from the Faculty of Engineering-Mansoura University-Egypt by 2006. After that he worked as an assistant professor at the Electronics & Communications engineering department until now. He has 40 publications in various international journals and conferences. His current research interests are in multimedia processing, wireless communication systems, and Field Programmable Gate Array (FPGA) applications.
A.S. Samarah
Dead of the electronics and communications engineering department.
M.I. Fath Allah
Mohamed Ismail received the BSC degree in Electronics and Communications Engineering from the Faculty of Engineering-Mansoura University-Egypt by 2007. After that he worked as a demonstrator at the higher institute of engineering and technology of delta-Mansoura-Egypt. His current research interests are in wireless communication systems and Field Programmable Gate Array (FPGA) applications.
