1. There should be no equality in Eq. (13). However, this would not affect the claim below Eq. (13) that it holds when N>=3.
2. There is a typo in Eq. (14): it should be "N/2" instead of "2/N".
3. The curve of the proposed ADRA in Fig. 5 of the paper is not the one with the threshold 2/N. We re-did the simulation and got the following figure, where we also provided the simulation results to confirm the theoretical curves. The AoI performance of the ADRA with the threshold 2/N is lower (better) compared to the one shown in Fig. 5.
2. There is a typo in Eq. (14): it should be "N/2" instead of "2/N".
3. The curve of the proposed ADRA in Fig. 5 of the paper is not the one with the threshold 2/N. We re-did the simulation and got the following figure, where we also provided the simulation results to confirm the theoretical curves. The AoI performance of the ADRA with the threshold 2/N is lower (better) compared to the one shown in Fig. 5.
