Synchronization scheme of FH-OFDM in Ad hoc physical layer

FH-OFDM modulation method can effectively solve the safety problem of Ad hoc network physical layer. This paper mainly introduce a Frequency-Hopped(FH) synchronization method combined synchronization information and time of day (TOD). This method can avoid the synchronization information being interfered. Then we improved Schmidl&Cox OFDM autocorrelation timing synchronization algorithm and propose a more accurate, anti-interference timing synchronization algorithms based on the improved training sequence. At last, overall system performance simulation diagram is given, from which we can see the system has strong anti-multipath ability and resistance to frequency selective fading.