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DOCSIS 3.1 uses channel bandwidths of up to 192 MHz in the downstream. [15] Upstream: DOCSIS 1.0/1.1 specifies channel widths between 200 kHz and 3.2 MHz. DOCSIS 2.0 & 3.0 specify 6.4 MHz, but can use the earlier, narrower channel widths for backward compatibility. DOCSIS 3.1 uses channel bandwidths of up to 96 MHz in the upstream. Modulation:
Wireless devices, BPL, and modems may produce a higher line rate or gross bit rate, due to error-correcting codes and other physical layer overhead. It is extremely common for throughput to be far less than half of theoretical maximum, though the more recent technologies (notably BPL) employ preemptive spectrum analysis to avoid this and so ...
6.35 Dual-band LTE modem (800 MHz, 2600 MHz) FRITZ!Box 6840 LTE LTE — 4 Gigabit b/g/n a 2.4 5.0 300 1 USB 2.0 Integrated 0 1 0 6.88 Tri-band LTE modem (800 MHz, 1800 MHz, 2600 MHz) FRITZ!Box 6842 LTE LTE — 4 Gigabit b/g/n 2.4 300 1 USB 2.0 Integrated a/b 1 0 6.35 Tri-band LTE modem (800 MHz, 1800 MHz, 2600 MHz); German version only
Wi-Fi (/ ˈ w aɪ f aɪ /) [1] [a] is a family of wireless network protocols based on the IEEE 802.11 family of standards, which are commonly used for local area networking of devices and Internet access, allowing nearby digital devices to exchange data by radio waves.
If this is a de facto standard imposed by modem chipset manufacturers, ISPs, et al, this article should say so. Separately but related. That 42.88 Mbps rate per channel for 256-QAM is obtained by multiplying 8 bits per symbol times the symbol rate 5.360537 Msym/s stated in DOCSIS 3.0 PHY spec. (pg 100). 8 x 5.360537 == 42.884296 Mbps
1998: Magic WAND project demonstrates OFDM modems for wireless LAN; 1999: IEEE 802.11a wireless LAN standard (Wi-Fi) [65] 2000: Proprietary fixed wireless access (V-OFDM, FLASH-OFDM, etc.) May 2001: The FCC allows OFDM in the 2.4 GHz license exempt band. [66] 2002: IEEE 802.11g standard for wireless LAN [67]
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