# Context-Aware Enhanced Application-Specific Handover in 5G V2X Networks
## 3 Connection-Aware Policy Mechanism (CAP)
### Application-Specific Connection Context Policy  
The connection context policy dynamically modifies the weight of network connection quality characteristics in accordance with predetermined performance standards. The priority decision for basic services has been defined by the 3 GPP standard [22] and evaluated by rigorous study of the recent literature according to the given references [13; 19; 23] and [22; 24; 25; 26] for recommended traffic classification. This policy specifies a range of codes that meet the demands of diverse applications as follows:  
* Audio: This guarantees uninterrupted and clear communication, and it is optimized for audio services.
* Video: This adjusts the quality of the connection for uploading and streaming videos.
* General: A well-balanced quality for standard network utilization is offered.  
Figure 2: Conceptual visualization of CAP mechanism.  
AR: AR applications are needed to necessitate the delivery of excellent graphics and videos.
* DataOff (Downloading and Uploading Data): This gives connection quality the first priority for services that require a lot of data, including uploading and downloading.
* Relay: This improves services in which a UE serves as a network relay.  
The UE executes a set of traffic profiles based on its requirements. Table 3 illustrates the perceived requirements of connection context policies.  
Furthermore, the weight adjustments are contingent upon the network environment type (urban, suburban, or open) and represent the distinct challenges and requirements associated with each setting.  
1. Urban Networks: * High User Density: Due to the high user density in urban locations, there may be interference and congestion.
* Building Obstructions: Signal deterioration and multipath propagation can be brought on by buildings and other structures.
2. Suburban Networks: * Moderate User Density: Compared with metropolitan regions, suburban areas have a lower user density, which reduces traffic.  
\begin{table}
\begin{tabular}{c c c} \hline \hline
**User Connection Traffic Class** & \multicolumn{2}{c}{**Important Decision Criteria**} \\ \hline Audio & & Minimal Latency: To guarantee real-time audio connection, minimal latency is prioritized. \\  & & Moderate SINR and Packet Loss: Signal deterioration and packet loss are tolerable for audio quality. \\ \hline Video & & High Data Throughput: Streaming video calls for high transmission speeds. \\  & & Low to Moderate Latency: A small amount of latency is acceptable for video streaming. \\  & & Minimal Packet Loss: Guarantees seamless video playback \\ \hline General & & Balanced Parameters: To provide universal network connectivity, a balanced set of parameters is desired. \\ \hline AR & & High Data Transmission Rate: To broadcast high-definition images and videos, high throughput is needed. \\  & & Low Latency: To keep AR apps responsive, there must be little delay. \\  & & Low Packet Loss: This preserves the visual content’s integrity. \\ \hline DataOff & & High Data Throughput: Gives large-scale data uploads and downloads priority over the data transmission rate. \\  & & Moderate Delay Tolerance: When the throughput is large, a certain amount of delay is acceptable. \\ \hline RELAY & & High SINR and RSSI: Gives priority to clear, powerful signals in order to guarantee dependable relay operation. \\  & & Moderate Packet Loss and Delay: Relay functions are tolerant of a small amount of packet loss and delay. \\ \hline \hline \end{tabular}
\end{table}
Table 3: Requirements of connection context policies.  
* Fewer Obstructions: Signal quality is improved because there are fewer obstructions than in metropolitan areas.
* Open Areas: Low User Density: The least densely populated locations are those found in open spaces, such as rural or freeway settings.
* Minimal impediments: Better signal transmission is often achieved in these locations because of the lack of major impediments.