Name
Abstract | ||
|---|---|---|
This paper describes the performance of eigenbeam multiple-input multiple-output (MIMO) with transmit antenna selection using orthogonal frequency-division multiplexing (OFDM), as measured in a testbed implemented using field-programmable gate arrays (FPGAs); it also targets the downlink performance improvement of wireless local area networks (LANs). For this verification, we employ a determinant-based simple transmit antenna selection approach based on the estimated instantaneous MIMO channel matrix. We show extensive experiments on the testbed to confirm the performance of eigenbeam MIMO-OFDM with transmit antenna selection in the three-select-two antenna case. First, the measured packet-error-rate (PER) performance confirms that the eigenbeam scheme with the three-select-two antenna-selection scheme provides a slight degradation in the required carrier-to-noise power ratio (CNR) that is approximately 0.2 dB from the eigenbeam-only scheme with three transmit antennas but with significantly lower computational complexity. Second, to determine the impact of Doppler frequency, both 5 Hz and 20 Hz, we focus on the required CNR performance degradation under various transmission intervals between the channel sounding packet and the data packet. It is experimentally confirmed that the eigenbeam scheme with transmit antenna selection offers improved robustness to MIMO channel fluctuation compared with the eigenbeam-only scheme. |
Year | DOI | Venue |
|---|---|---|
2009 | 10.1109/TVT.2008.928900 | Vehicular Technology, IEEE Transactions |
Keywords | Field | DocType |
MIMO communication,OFDM modulation,antenna arrays,channel estimation,computer network performance evaluation,determinants,eigenvalues and eigenfunctions,error statistics,field programmable gate arrays,matrix algebra,wireless LAN,wireless channels,Doppler frequency,FPGA-implemented eigenbeam MIMO-OFDM channel,WLAN,carrier-to-noise power ratio,computational complexity,determinant-based transmit antenna selection approach,downlink performance improvement,field-programmable gate array,instantaneous MIMO channel matrix estimation,multiple-input multiple-output communication,orthogonal frequency-division multiplexing,packet-error-rate performance measurement,wireless local area network,Eigenbeam,Field programmable gate array,MIMO-OFDM,Transmit antenna selection,Wireless LAN,field-programmable gate array (FPGA),multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM),transmit antenna selection,wireless local area network (LAN) | MIMO-OFDM,Channel sounding,Computer science,Carrier-to-noise ratio,Frequency-division multiplexing,MIMO,Electronic engineering,Multiplexing,Orthogonal frequency-division multiplexing,Bit error rate | Journal |
Volume | Issue | ISSN |
58 | 3 | 0018-9545 |
Citations | PageRank | References |
3 | 0.70 | 9 |
Authors | ||
3 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Takeshi Onizawa | 1 | 39 | 11.20 |
| atsushi ohta | 2 | 66 | 15.31 |
| Yusuke Asai | 3 | 54 | 15.85 |