16-QAM16-State Quadrature Amplitude Modulation
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Some common forms of QAM are 16-QAM, 32-QAM, 64-QAM, 128-QAM, and 256-QAM.
The average number of iterations for binary LTE Turbo codes with 16-QAM and SDR stopping is shown in Figure 12.
16-QaM Vector Millimeter Wave Signal Generation Based on Phase Modulator with Photonic Frequency Doubling and Precoding.
"By eliminating the need to use two wavelengths with the 16-QAM modulation format, Oclaro's new modulator will enable customers to accelerate the design and test of next-generation, high-speed 400-Gb/s networks," said Adam Carter, chief commercial officer at Oclaro.
The first rate uses QPSK with rate 3/4 coding, while at 24 Mbps, 16-QAM with rate 1/2 coding is used.
SNR performance estimation method, is detailed in the case of 16-QAM modulation.
This number comes from the widely used IEEE 802.11g standard [11], especially from the 16-QAM modulation with coding rate 1/2 (bitrate 24 Mbps).
Recently, three wireless 16-QAM MIMO signals were proposed to be transmitted over a 20 km SMF using the optical single-sideband frequency translation (OSSB-FT) technique (which is considered as OFU technique) [11].
In the simulations, we considered QPSK and 16-QAM modulation format.
The 16-QAM and the 64-QAM signals with different frequency bandwidths are sent at a carrier frequency of 2.0 GHz to both the SPR and the low-IF receivers.