Link-budget analysis Clause Samples

Link-budget analysis. The requirements and specifications summarized in the previous section are derived from the following link-budget analysis. To begin with, we consider the elementary study of single-layer OFDM transmission. In Table 1, the link-budget calculation is shown. We include realistic loss figures (however, yet to be verified during the experimental tests) at transmitter and receiver side to account for front-end (RF and digital) non-ideality (e.g., EVM, RX noise figure and TX- FE losses). It can be noticed that under this system model, the range requirements (200m) is likely to be achieved be achieved with 64 QAM modulation (or lower) and array gain of 22.76 dBi. SNRmin [dB] 25,20 SNRmin_coded [dB] 24,49 EVM TX [dB] -26,00 RX SNR Requirement [dB] 29,83 Noise density [dBm/Hz] - 174,00 Thermal noise [dBm] -94,17 RX noise figure [dB] 10,00 Sensitivity [dBm] -54,35 TX power branch for total signal [dBm] 30,00 Antenna gain TX [dBi] 22,76 Antenna gain RX [dBi] 22,76 TX FE losses [dB] 5,00 EIRP (total) 59,80 Link margin [dB] 137,20 Path loss coefficient 2,50 Wavelength [mm] 11,1 Maximum distance [m] 264,8