在vc上做的802.16d ofdm phy的仿真，定点运算，实现的一部分功能，供参考

the OFDM PHY is adaptive therefore it supports multiple schemes BPSK, QPSK, 16-QAM and 64-QAM for data carriers’ modulation. The constellation diagrams are gray mapped and shows the magnitudes I and Q (In-phase and Quadrature) components of e