Implementation of Adaptive OFDM System Using FPGA

OFDM is a modulation as well as multiplexing technique which is now widely used in various high speed mobile and wireless communication systems because of its capacity of ensuring high level robustness against interference. In this paper the design and implementation of OFDM system will be illustrated as well as a detailed simulation of the OFDM system with 64-QAM to study the effect of various design parameters on the system performance. OFDM transceiver will be implemented using FPGA Spartan 3A kit. This adaptive system will be implemented using different digital modulation schemes as shown in the emulation results. All modules are designed using VHDL programming language.

[1]  Antonio Pascual-Iserte,et al.  Design, Implementation and Testing of a Real-Time Mobile WiMAX Testbed Featuring MIMO Technology , 2010, TRIDENTCOM.

[2]  Hyeong Ho Lee,et al.  MAC implementation for IEEE 802.11 wireless LAN , 2001, Joint 4th IEEE International Conference on ATM(ICATM'01) and High Speed Intelligent Internet Symposium. ICATM 2001 (Cat. No.00EX486).

[3]  Robert W. Stewart,et al.  OFDM transceiver for IEEE 802.20 standards , 2009, 2009 17th European Signal Processing Conference.

[4]  Kevin Wong,et al.  Rapid prototyping of 802.11 wireless modems , 2004, SPIE Micro + Nano Materials, Devices, and Applications.

[5]  Paul Guanming Lin.  OFDM Simulation in MATLAB , 2010 .

[6]  Chris Dick,et al.  FPGA implementation of an OFDM PHY , 2003, The Thrity-Seventh Asilomar Conference on Signals, Systems & Computers, 2003.

[7]  F.M. Ghannouchi,et al.  On the RF/DSP design for efficiency of OFDM transmitters , 2005, IEEE Transactions on Microwave Theory and Techniques.

[8]  Kamaru Adzha Kadiran.  Design and implementation of OFDM transmitter and receiver on FPGA hardware , 2005 .

[9]  K. Subba Rao,et al.  FPGA Implementation of Ternary Pulse C ompression Sequences with Superior Merit Factors , 2009 .

[10]  M.J. Canet,et al.  Design of a digital front-end transmitter for OFDM-WLAN systems using FPGA , 2004, First International Symposium on Control, Communications and Signal Processing, 2004..

[11]  David M Levinson,et al.  Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering , 2009, Complex.

[12]  Steven J. Vaughan-Nichols,et al.  OFDM: Back to the Wireless Future , 2002, Computer.

[13]  G. Montoro,et al.  Multi-Lookup Table FPGA Implementation of an Adaptive Digital Predistorter for Linearizing RF Power Amplifiers With Memory Effects , 2008, IEEE Transactions on Microwave Theory and Techniques.

[14]  Xuemei Liu,et al.  The Design of Radix-4 FFT by FPGA , 2008, 2008 International Symposium on Intelligent Information Technology Application Workshops.

[15]  J. C. Ebergen.  VLSI design , 1992, IEEE Des. Test Comput..

[16]  Juan F. Sevillano,et al.  An FFT Core for DVB-T/DVB-H Receivers , 2006, 2006 13th IEEE International Conference on Electronics, Circuits and Systems.

[17]  R. Engelbrecht,et al.  DIGEST of TECHNICAL PAPERS , 1959 .