In response to the unique underground environment of subway systems, a wireless multi-hop SDR network can be rapidly deployed within subway stations using a combination of chain relay and mesh topologies. Through relay and hop-based transmission, this effectively addresses wireless signal obstruction, enabling penetrating wireless communication between above-ground and underground areas. It provides reliable, stable, and high-speed communication support for station staff.
In subway applications, traditional network deployment involves high maintenance costs and poor mobility and scalability. In contrast, wireless MESH networks are easy to deploy, flexible to use, and simple to operate. They not only significantly reduce network construction and operational costs but also meet the needs of staff to move freely according to task requirements. Additionally, video surveillance nodes can be flexibly adjusted to eliminate monitoring blind spots.
The decentralized, all-IP MESH broadband system is self-organizing and self-healing, with strong network robustness and survivability. Even if any node fails, the network continues to operate normally. It can serve as both an extension of existing dedicated wireless communication networks within the subway system, enabling integrated communications, and as a backup transmission solution for emergencies when parts of the public operator networks in the subway experience failures.
