Design and Study of Cognitive Network Physical Layer Simulation Platform

Table 1

System parameters for WRAN.

No.	Parameters	Specification	Remark
1	Frequency range	54~862 MHz^a
2	Channel bandwidth	6, 7, or 8 MHz	According to regulatory domain
3	Data rate	4.54 to 22.69 Mbit/s
4	Spectral efficiency	0.76 to 3.78 bps/Hz
5	Payload modulation	QPSK, 16-QAM, 64-QAM	BPSK used for preamble and pilots
6	Multiple access	OFDMA
7	FFT size	2048
8	Cyclic prefix modes	1/4, 1/8, 1/16, 1/32
9	Duplex	TDD

Frequency range allocated to the television broadcasting service in various parts of the world.