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Next generation Wireless Local Area Networks (WLANs) such as the IEEE 802.11n standard are expected to rely on multiple antennas at both transmitter and receiver to increase throughput and link reliability. However, these improvements come at a significant increase in signal processing and hence hardware complexity compared to existing single-antenna systems. This paper presents, to the best of the authors' knowledge, the first 4 × 4 MIMO-OFDM WLAN physical layer ASIC based on the OFDM specifications of the IEEE 802.11a standard. The ASIC achieves an uncoded throughput of 192 Mbps in a 20 MHz channel resulting in a spectral efficiency of 9.6 bits/s/Hz.

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Format:PDFSize:330 KB
Date:May 2005
Pages:4

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