# Enhancing Indoor Localization with Room-to-Room Transition Time: A Multi-Dataset Study
## 3 Material and Method
### Offline (Data-Collection) Phase
#### 3.1.2 Mobile-Based Data Collector for Room Transition Time Measurement
\begin{table}
\begin{tabular}{c c c c c c c} \hline \hline
**DSSID1** & **DSSID2** & **DSSID3** & \(\ldots\) & **DSSID63** & **Source Room** & **Time Dif (milis)** & **Target Room** \\ \hline \(-\)51 & \(-\)76 & \(-\)80 & N/A & Hall & 10,702 & Bathroom \\ \hline \(-\)49 & \(-\)78 & \(-\)74 & N/A & LivingRoom & 6954 & Bathroom \\ \hline \(-\)60 & \(-\)82 & \(-\)76 & N/A & ChildRoom & 5080 & Bathroom \\ \hline \(-\)50 & \(-\)76 & \(-\)76 & N/A & Kitchen & 7707 & Bathroom \\ \hline \(-\)51 & \(-\)82 & \(-\)89 & N/A & Bedroom & 7156 & Bathroom \\ \hline \(-\)77 & \(-\)93 & \(-\)84 & \(-\)91 & Kitchen & 12,278 & Bedroom \\ \hline \(-\)75 & \(-\)91 & \(-\)83 & \(-\)92 & Bathroom & 6596 & Bedroom \\ \hline \(-\)76 & \(-\)91 & \(-\)85 & \(-\)92 & LivingRoom & 9976 & Bedroom \\ \hline \(-\)73 & \(-\)89 & \(-\)86 & \(-\)90 & Hall & 10,960 & Bedroom \\ \hline \(-\)75 & \(-\)90 & \(-\)84 & \(-\)88 & ChildRoom & 6832 & Bedroom \\ \hline \(-\)68 & N/A & \(-\)81 & N/A & Hall & 8872 & Kitchen \\ \hline \(-\)67 & \(-\)87 & \(-\)81 & N/A & Bathroom & 7904 & Kitchen \\ \hline \(-\)68 & \(-\)87 & \(-\)81 & N/A & LivingRoom & 8456 & Kitchen \\ \hline \(-\)68 & \(-\)85 & \(-\)80 & N/A & ChildRoom & 9954 & Kitchen \\ \hline \(-\)67 & \(-\)86 & \(-\)82 & N/A & Bedroom & 11,306 & Kitchen \\ \hline \(N/A\) & \(-\)77 & N/A & N/A & ChildRoom & 8409 & LivingRoom \\ \hline N/A & \(-\)80 & N/A & N/A & Bedroom & 10,482 & LivingRoom \\ \hline N/A & \(-\)81 & N/A & N/A & Bathroom & 6700 & LivingRoom \\ \hline N/A & \(-\)79 & N/A & N/A & Kitchen & 8458 & LivingRoom \\ \hline N/A & \(-\)80 & N/A & N/A & Hall & 8221 & LivingRoom \\ \hline \(-\)66 & \(-\)88 & N/A & N/A & Bathroom & 8063 & Hall \\ \hline \(-\)67 & \(-\)90 & N/A & N/A & Bedroom & 11,471 & Hall \\ \hline \(-\)68 & \(-\)88 & N/A & N/A & Kitchen & 7470 & Hall \\ \hline \(-\)66 & \(-\)89 & N/A & N/A & ChildRoom & 9049 & Hall \\ \hline \(-\)68 & \(-\)90 & N/A & N/A & LivingRoom & 7483 & Hall \\ \hline \(-\)44 & \(-\)93 & \(-\)71 & N/A & Hall & 9932 & ChildRoom \\ \hline \(-\)43 & \(-\)89 & \(-\)69 & N/A & LivingRoom & 8142 & ChildRoom \\ \hline \(-\)43 & \(-\)95 & \(-\)79 & N/A & Kitchen & 9068 & ChildRoom \\ \hline \(-\)44 & \(-\)89 & \(-\)69 & N/A & Bathroom & 4653 & ChildRoom \\ \hline \(-\)44 & \(-\)95 & \(-\)77 & N/A & Bedroom & 7319 & ChildRoom \\ \hline \hline \end{tabular}
\end{table} 
Table 2: A sample (from Dataset 2) of the combined Wi-Fi and Room-to-Room Time Difference datasets (N/A: Not Available). \begin{table}
\begin{tabular}{c c c c c} \hline \hline  & & & & **Collector** \\ \cline{2-5}
**Dataset** & **House Size (m2)** & **Gender** & **Age** & **Height (cm)** \\ \hline Dataset 1 & 195 & Female & 30 & 163 \\ Dataset 2 & 145 & Female & 34 & 162 \\ Dataset 3 & 130 & Male & 45 & 182 \\ \hline \hline \end{tabular}
\end{table} 
Table 3: Summary of the datasets used in this study, including house sizes and the demographic characteristics of the data collectors (gender, age, and height). difference from the Bathroom to the Kitchen, which were farther apart, was 8008 ms. The data collector walked at a natural pace during the different time periods, and the transition times varied, based not only on the distance between rooms but also on the collector's physical condition and mental state at the time of the data collection. Table 4 presents the approximate distances and corresponding step counts between rooms, providing an overview of the spatial relationships within the different residential environments. To ensure the accuracy of the distance measurements between the rooms, a measuring tape was used, and the paths were divided into smaller segments, to account for possible curvatures. The step count was estimated based on a representative walking path between rooms, reflecting typical movement patterns. The average speeds calculated using the room-to-room transition data from the datasets are presented in Figure 5. The walking speed for each transition was obtained by dividing the approximate distance between rooms by the recorded transition time.