Table 1 Symbol notations
From: DQN-based mobile edge computing for smart Internet of vehicle
Notation | Definition |
|---|---|
\(u_m\) | The mth user |
\(T_m^\mathrm{local}\) | Local latency of the mth user |
\(l_m\) | Task size of the mth user |
\(\alpha _m\) | Offloading ratio of the mth user |
C | CPU cycle of processing one bit data |
\(F_m\) | calculating capability of the mth user |
\(R_m\) | Data transmission rate from \(u_m\) to the CAP |
W | Wireless bandwidth |
\(P_m\) | Transmit power of the mth user |
\(h_m\) | Channel parameter from \(u_m\) to the CAP |
\(\sigma ^2\) | Variance of additive white Gaussian noise (AWGN) at the CAP |
\(T_m^\mathrm{tran}\) | Transmission latency of the mth user |
\(T_m^\mathrm{CAP}\) | calculating latency at CAP of the mth user |
\(f_m\) | calculating capability at CAP of the mth user |
F | Total calculating capability at the server |
\(T_m^\mathrm{offl}\) | Offloading latency of the mth user |
\(T_m^\mathrm{total}\) | Total latency of the mth user |
\(T^\mathrm{total}\) | Total latency of the vehicular MEC system |