name: EVM
full_form: Error Vector Magnitude
context: Figure 5.2.1.4-1 and 5.2.1.4-2 show link level simulation results compared between 64QAM and 256QAM. On static channel and TDL-D with antenna configuration 2x2 and Rank 2, with 3% Tx EVM and 3% Rx EVM, the performance gain compared to 64QAM modulation is obtained over 21dB and 25dB SNR , respectively. a) Tx EVM 0% and Rx EVM 0% b) Tx EVM 2% and Rx EVM 2% c) Tx EVM 3% and Rx EVM 3% Figure 5.2.1.4-1: Simulation results on static channel a) Tx EVM 0% and Rx EVM 0% b) Tx EVM 2% and Rx EVM 2% c) Tx EVM 3% and Rx EVM 3% Figure 5.2.1.4-2: Simulation results on TDL-D channel
description: Error Vector Magnitude (EVM) is a measure of the difference between the ideal and actual constellation points in a modulation scheme, indicating the quality of the transmitted signal. It is used to evaluate the performance of a communication system.
explanation: The context mentions EVM as a parameter used to compare the performance of different modulation schemes (64QAM and 256QAM) under various conditions (static channel, TDL-D channel, different antenna configurations, and ranks). The values of Tx EVM and Rx EVM are provided as percentages, indicating the magnitude of error in signal transmission and reception. This classification is based on the role of EVM as a metric to assess signal quality and system performance.
section_title: 5.2.1.4Results from NTT DOCOMO [7]
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biotag_Description: B-Measurement,I-Measurement,I-Measurement,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O