This interactive sandbox was generated by Claude (Anthropic) for the Wireless 101 course, as a companion to WRL-101 M10-L1 (FDMA, TDMA, CDMA), M10-L2 (OFDM and OFDMA) and Module 11 (LTE and WiFi). Every number on this page is one of exactly three kinds, and each is labelled where it appears:

COMPUTED — the resource accounting (allocated, wasted and unused resource elements, whole numbers, summing exactly to the total), the Walsh–Hadamard codes and every inner product, the multiple-access interference, the frequency-selective channel, the three schedulers, Jain's fairness index and every throughput figure. None of these is typed in; all are recomputed from the knobs on every change.
PUBLISHED FIGURE — the grid's dimensions and the systems quoted. LTE's 15 kHz subcarrier spacing and its 72 / 180 / 300 / 600 / 1200 subcarriers for 1.4 / 3 / 5 / 10 / 20 MHz (3GPP TS 36.104 Table 5.6-1); the resource block of 12 subcarriers × one 0.5 ms slot = 7 OFDM symbols; the normal cyclic prefix of 4.69 µs against a 66.67 µs useful symbol; IS-95's 1.2288 Mcps, 64 Walsh codes and 9.6 kbit/s vocoder; GSM's 8.25 of 156.25 bits of guard period; AMPS's 30 kHz channel spacing.
ILLUSTRATIVE — the 5-tap delay profile that generates the frequency-selective channel, the per-user average-SNR offsets, the seeded PN sequences standing in for IS-95's 2⁴²−1 long codes, and the conversion of a CDMA capacity loss into an equivalent grid area so that interference can be drawn.

It is not a simulator of a real network. There is no radio, no traffic model and no protocol. Throughputs are the unconstrained Shannon bound — real modulation and coding tables fall roughly a quarter short of it (M6-L3) — and they are stated per resource element so the four schemes are compared at equal bandwidth and equal energy.