Paper Info
Title
Fpga Implementation Of Eigenbeam Mimo-Ofdm For Wireless Lan And Its Experimental Performance
Abstract
This paper describes the experimental performance of eigenbeam multi-input multi-output with orthogonal frequency division multiplexing (MIMO-OFDM) systems as measured in a testbed implemented with field programmable gate arrays (FPGAs). The FPGA-testbed, characterized by the software-defined radio (SDR) technique, offers 1/5-scale real time signal processing. Extensive experiments on the testbed confirm the basic operation and performance of eigenbeam, MIMO-OFDM with quadrature phase-shift keying (QPSK) and 16 quadrature amplitude modulation (QAM). From the packet error rate (PER) performance, we confirm that the eigenbeam 16QAM/MIMO-OFDM scheme with permutation matrix and three transmit antennas (M-t = 3) drastically improves the required carrier-to-noise power ratio (CNR) by approximately 5.6 dB over the scheme without eigenbeam with M-t = 2. Furthermore, to determine the impact of Doppler frequency f(d), we focus on the transmission interval between the MIMO channel estimation and data transmission. To suppress the required CNR degradation to within 1.5 dB, it is found that the eigenbeam 16QAM/MIMO-OFDM scheme with permutation matrix and M-t = 3 permits a transmission interval of approximately 68.5 ms when f(d) = 1 Hz for a 1/5-scale model.
Year
DOI
Venue
2006
10.1093/ietcom/e89-b.12.3233
IEICE TRANSACTIONS ON COMMUNICATIONS
Keywords
Field
DocType
software-defined radio, field programmable gate array, MIMO-OFDM, eigenbeam, wireless LAN
MIMO-OFDM,Quadrature amplitude modulation,Telecommunications,Data transmission,Computer science,Carrier-to-noise ratio,QAM,Computer network,Electronic engineering,Orthogonal frequency-division multiplexing,Phase-shift keying,Bit error rate
Journal
Volume
Issue
ISSN
E89B
12
0916-8516
Citations 
PageRank 
References 
0
0.34
0
Authors
4
Name
Order
Citations
PageRank
Takeshi Onizawa13911.20
atsushi ohta26615.31
Yusuke Asai35415.85
Satoru Aikawa4359.39