Table 1 Specifications for the standards considered in this article using OFDM as modulation technique [7].
From: State of the art baseband DSP platforms for Software Defined Radio: A survey
| Â | DVB-T | 802.11 a/g | WiMAX | 3GPP-LTE E-UTRA | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
Carrier frequency (GHz) | 0.4-0.8 | 2.5, 5.8 | 2-11 | 2 | ||||||
Bandwidth (MHz) | 6, 7, 8 | 20 | 1.5-28 | 1.25 | 2.5 | 5 | 15 | 15 | 20 | |
FFT size | 8192 | 2048 | 64 | 256 | 128 | 256 | 512 | 1536 | 1536 | 2048 |
Used subcarriers | 6817 | 1705 | 52 | 200 | 76 | 151 | 301 | 901 | 901 | 1201 |
FFT period (μs) | 896 | 224 | 3.2 | 8 (2 MHz channel) | 66.7 | |||||
Constellation | QPSK, 16QAM, 64QAM | BPSK, QPSK, 16QAM, 64QAM | BPSK, QPSK, 16QAM, 64QAM | QPSK, 16QAM, 64QAM | ||||||
Maximum data rate (bps) | 31.67 M (8 MHz channel) | 54 M | 104.7 M (28 MHz channel) | >100 M (20 MHz channel) | ||||||
Power requirement | Power consumption for baseband processing in a mobile handset must be within 1 W [44] | |||||||||