Quadrature amplitude modulation (redirect from 16QAM)
Quadrature amplitude modulation (QAM) is the name of a family of digital modulation methods and a related family of analog modulation methods widely used...
15 KB (1,924 words) - 23:25, 26 July 2024
28 Mbit/s and 42 Mbit/s with a single 5 MHz carrier for Rel7 (MIMO with 16QAM) and Rel8 (64-QAM + MIMO), in good channel conditions with low correlation...
18 KB (1,783 words) - 15:20, 12 June 2024
scheme π⁄4-DQPSK QPSK, 16QAM, 64QAM QPSK, 16QAM, 64QAM 4QAM, 4QAM-NR, 16QAM, 32QAM, 64QAM QPSK, 16QAM, 64QAM, 256QAM BPSK, QPSK, 16QAM, 64QAM Useful symbol...
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data transmission. Supported modulation formats on the PDSCH are QPSK, 16QAM and 64QAM. The Physical Multicast Channel (PMCH) is used for broadcast transmission...
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systems can use quadrature amplitude modulation to maximize throughput. 16QAM uses a 16-point constellation to send four bits per symbol, with speeds...
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dual carrier, higher symbol rate and higher-order modulation (32QAM and 16QAM instead of 8PSK), and turbo codes to improve error correction. This results...
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Logical Channels (MLC) 1-7 Modulations used QPSK (4 symbol constellations), 16QAM (16 symbols) Spacing between sub-carriers 1.355 kHz (5.55 MHz / 4,096 sub-carriers)...
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wireless connection of various networks. On the physical layer BPSK, QPSK, 16QAM or 64QAM modulations are used through OFDM. HiperLAN/2 offers security measures...
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give the same result, but for higher-order QAM constellations including 16QAM, Star 32QAM, 32APSK, and 64QAM the RMS average and the maximum produce different...
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Thus, there is an exponential rise in the SNR requirement if one adopts a 16QAM or 64QAM; however, the spectral efficiency improves. Nyquist–Shannon sampling...
21 KB (3,073 words) - 21:58, 25 April 2024
(400GBASE-ZR) Dual polarization 16-state quadrature amplitude modulation (DP-16QAM) with coherent detection is proposed. 200 Gbit/s Ethernet Define a physical...
55 KB (2,415 words) - 16:37, 19 July 2024
and an attainable modulation efficiency of 2N (bit/s)/Hz. Example 3: A 16QAM modem has an alphabet size of M = 16 alternative symbols, with N = 4 bit/symbol...
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Choice of modulation type—the link can employ QPSK for noisy channels and 16QAM for clearer channels. The former is more robust and can tolerate higher...
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technique as European Broadcast, is used, using a constellation of QPSK, 16QAM, or 64QAM, enabling sufficient digital bandwidths at 6 MHz deviation for...
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4/5, 5/6, 6/7, 8/9 Modulation OFDM OFDM Modulation schemes QPSK, 16QAM, 64QAM QPSK, 16QAM, 64QAM, 256QAM Guard interval 1/4, 1/8, 1/16, 1/32 1/4, 19/128...
73 KB (8,499 words) - 10:37, 24 July 2024
keying (OQPSK); 8PSK; Quadrature amplitude modulation (QAM), especially 16QAM. The popular satellite error correction codes include: Convolutional codes:...
11 KB (1,377 words) - 22:21, 25 April 2024
'1101'. For a hierarchically-modulated symbol with QPSK base layer and 16QAM enhancement layer, the base-layer throughput loss is up to about 1.5 bits/symbol...
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OFDM BPSK 2.25 Mbps 12 OFDM QPSK 3 Mbps 18 OFDM QPSK 4.5 Mbps 24 OFDM 16QAM 6 Mbps 36 OFDM 16QAM 9 Mbps 48 OFDM 64QAM 12 Mbps 54 OFDM 64QAM 13.5 Mbps...
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Mobile Internet CDMA/TDD 16 Reported speeds according to IPWireless using 16QAM modulation similar to HSDPA+HSUPA EV-DO Rel. 0 EV-DO Rev.A EV-DO Rev.B 3GPP2...
13 KB (1,290 words) - 02:27, 22 July 2024
Modulation 8-VSB and 16-VSB COFDM QPSK, 16QAM and 64QAM Hierarchical modulation: multi-resolution constellation (16QAM and 64 QAM) Guard interval: 1/32, 1/16...
58 KB (5,703 words) - 01:25, 3 July 2024
Mobile Internet CDMA/TDD 16 Reported speeds according to IPWireless using 16QAM modulation similar to HSDPA+HSUPA EV-DO Rel. 0 EV-DO Rev.A EV-DO Rev.B 3GPP2...
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protection classes: OFDM propagation profiles (A or B) carrier modulation (16QAM or 64QAM) and channel bandwidth (9 or 10 kHz) The lower the protection class...
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Dolby AC-4, MPEG-H Yes Yes Yes NTSC, ATSC 1.0 Yes DVB-T 1997 COFDM (QPSK, 16QAM/64QAM) 1080 (typical, not defined) Up to 50p Up to 31.668 Mbit/s Yes 5,...
47 KB (5,143 words) - 20:13, 3 August 2024
LC At least 80 km over single-mode fiber using a single wavelength with 16QAM over a DWDM system TBD 802.3df two pairs of single-mode fiber with 500 m...
61 KB (3,053 words) - 03:34, 31 July 2024
Mobile Internet CDMA/TDD 16 Reported speeds according to IPWireless using 16QAM modulation similar to HSDPA+HSUPA EV-DO Rel. 0 EV-DO Rev.A EV-DO Rev.B 3GPP2...
17 KB (1,971 words) - 03:55, 31 July 2024
Transmission channel coding Modulation Scheme 64QAM-OFDM, 16QAM-OFDM, QPSK-OFDM, DQPSK-OFDM (Hierarchical transmission) Error correction coding Inner...
71 KB (7,132 words) - 11:27, 12 April 2024
on a single line card. Infinera has also demonstrated a ten-carrier PM-16QAM super-channel solution that is intended to fit in the same form factor as...
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or 1 kHz apart. DVB-T offers three different modulation schemes (QPSK, 16QAM, 64QAM). DVB-T has been adopted or proposed for digital television broadcasting...
36 KB (3,856 words) - 08:01, 30 July 2024
Lee; Rahn, Jeffrey; O’Connor, James; Mitchell, Matthew (2019). "Real-time 16QAM Transatlantic Record Spectral Efficiency of 6.21 b/s/Hz Enabling 26.2 Tbit/s...
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Ofcom changes the transmission mode of broadcast on all multiplexes from 16QAM to 64QAM so more services could be squeezed onto the digital terrestrial...
56 KB (6,652 words) - 11:00, 22 July 2024