跳频同步的研究

Frenquency hopping communications rely on synchronization,above all,frequency synchronization is essential,at the mean time,clock synchronization is important for many applications in an IEEE 802.11-based mobile ad hoc network(manet).An accurate clock synchronization protocol for manet is critical to the performance of these applications.IEEE 802.11 standards first specify a Timing Synchronization Function for the manet,which is the base of the following synchronization protocols,according to it,hosts accomplish clock synchronization by exchanging timing information periodically,the accuracy of clock synchronization is heavily restricted by the transportation delay,so the accuracy and scalability of clock synchronization protocols in multihop ad hoc networks are the focus of the study.