Medium Access Control Protocol Using State Changeable Directional Antennas in Ad-Hoc Networks

Recently environment of wireless communication is improved very fast. But in a field of Ad hoc, improvement is not so fast as characteristic of in-frastructureless. Even in the Medium Access Control protocol area of Ad hoc network, it is hard to solve traditional problems, hidden terminal and expose node problems. In this paper, we propose new Medium Access Control proto-col for solving these problems using state changeable and directional multi an-tennas.

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