# Research on Data Link Channel Decoding Optimization Scheme for Drone Power Inspection Scenarios
## 1 Introduction  
In recent years, the rapid development of smart grid technology has propelled the construction of smart grids into a rapid growth stage. To meet the increasing demand for electricity, numerous new transmission lines have been deployed, resulting in a significant surge in transmission line mileage and the amount of power equipment. Moreover, many transmission lines are located in areas with complex terrain and harsh environments, which significantly increases the possibility of transmission line failures. As a result, the monitoring and maintenance of power facilities in electric power transmission are anenormous challenge. At present, the traditional manual detection methods involve heavy workloads and high risks, rendering them inadequate to meet the detection requirements of the modern power industry. These limitations have created substantial difficulties in the monitoring and maintenance of equipment on large-scale transmission lines [1]. Nowadays, unmanned aerial vehicles (UAVs) have emerged as a promising solution for transmission line inspections, primarily due to their features such as beyond-line-of-sight flying, enhanced image quality, and ease of operation. By utilizing drones to detect transmission line faults, inspectors can effectively reduce high-risk tasks such as tower climbing, resulting in a substantial reduction in workload and risk. UAVs have been extensively employed in transmission line inspection, enabling more automated and efficient intelligent power inspections [2]. In the scenario of drone power inspection, due to the considerable distance between the inspection area of the working drone and the ground server or base station, there is the challenge of long-distance communication. With the maturing of drone technology, UAVs have become a new possibility for drones to be used as aerial base stations or mobile relay stations to solve long-distance communication problems [3]. UAV-aided hybrid communication techniques have been widely investigated [4], and wireless communication assisted by drones has proven effective in scenarios with widely distributed users and significant communication obstacles. The concept of drone relays has been extensively discussed [5; 6]. By deploying specific drones as relay nodes, it becomes possible to amplify and forward signals, resulting in a significant expansion of the communication range, enabling wireless transmission over long distances [7]. The design of a drone relay system plays a crucial role in ensuring effective communication and coordination between the drones, enabling wireless relay functionality and efficient transmission of signal. [PERSON], [PERSON], et al. [8] studied drone-cluster-assisted multi-hop communication schemes for scenarios where the distance between the source and destination nodes exceeded a certain threshold. This study explored the effectiveness of utilizing a cluster of drones to facilitate multi-hop communication. [PERSON], [PERSON], et al. [9] discuss the optimal placement of multiple drones in two typical relay settings: establishing a single multi-hop link or multiple double-hop links. This study aims to specifically focus on the multi-hop single-link power inspection scenario involving multiple UAVs. This scenario serves as a solution to extend the signal transmission distance and expand communication coverage. By implementing a multi-hop single-link communication system model with multiple drone relays, the drones are capable of remotely transmitting power data captured from the work area to the ground server or base station, enabling efficient long-distance communication. Wireless communication technology plays an important role in the above power inspection scenarios that rely on multiple drone relays. The drone data link serves as a crucial component of the drone system, and its reliability is a key factor affecting drone wireless communication.