High-spectral-efficiency quadrature amplitude modulation (QAM) is used over many communications media such as twisted pair, coaxial cable, fiber optics and radio to carry high-speed digital ...
Keep the antenna level. Rotate it 90 degrees. Move it a few inches to the left. Stand to the right. Hold it a bit higher ... there--nope. Try again. That has been my high-definition television (HDTV) ...
Over the past several years, orthogonal frequency division multiplexing (OFDM) has received considerable attention from the general wireless community and in particular from the wireless LAN (WLAN) ...
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