An Improved Implicit Token Passing Algorithm for DAP-NAD in MIL-STD-188-220C

In this paper, we proposed an improved NAD (network access delay) algorithm for MIL-STD-188-220C that is named as DAP-NAD-CJ. In our new algorithm, the implicit token passing scheme was modified so that tokens can effectively jump over stations without message, and thus can find active stations as fast as possible. Firstly, we analyzed our algorithm mathematically in the case of single priority network. Then simulations were presented in a multi-priority network. Mathematical and simulation results showed that our DAP-NAD-CJ algorithm outperforms DAP-NAD and DAP-NAD-R algorithms