name: QAM
full_form: Quadrature Amplitude Modulation
context: was simulated for this scenario. Figure 5.2.1.6-2: 256 QAM and 64 QAM throughput performance comparison The following are results simulated at 29 GHz with TDL-D channel model with 256 QAM link adaptation with CPE compensation. The link adaptation adjusted different MCS specified in the simulation assumptions and HARQ of 8. On the left is 64 QAM with 8% while figure on the right hand side is 256 QAM with 3% EVM. To observe a gain in throughput towards a single user, a SNR of >22 dB is needed for the case of studying TLD-D channel conditions; a slightly lower expected SNR needed compared to that of TDL-A as shown in previous 2 figures. Figure 5.2.1.6-3: 64 QAM and 256 QAM throughput performance comparison in LOS scenario (TDL-D)
description: Quadrature Amplitude Modulation (QAM) is a method used to encode digital information onto a carrier wave by varying both its amplitude and phase. This allows for the transmission of more data over a given bandwidth compared to simpler modulation techniques.
explanation: The description explicitly states that QAM is a 'modulation technique' used in telecommunications to transmit data. Modulation techniques are a fundamental part of how information is encoded onto carrier waves for transmission.
section_title: 5.2.1.6Results from Ericsson [9]
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