Introduction to the Advantages and Features of Wireless Mesh Network Systems
The Mesh wireless ad-hoc network system is a mobile broadband multimedia communication system designed based on the novel concept of wireless Mesh networks. Under non-line-of-sight and high-mobility conditions, the system employs a distributed network architecture where each node can operate without a central hub, enabling real-time exchange of multimedia information such as multi-channel voice, data, and video. Simultaneously, the system supports any network topology, allowing each node device to move rapidly and arbitrarily. The system topology can quickly adapt and update without affecting transmission performance. The entire system is characterized by ease of deployment, flexibility, simplicity of operation, and low maintenance.
I. System Advantages
The system operates without a central network hub, enabling flexible deployment without reliance on infrastructure such as equipment rooms or transmission networks. It can be configured arbitrarily, extending coverage through multi-hop relay networking. It uses dedicated wireless transmission links with no associated link or data usage costs. The system supports hierarchical grouping and roaming networks to expand communication capacity. It features frequency hopping functionality, effectively enhancing anti-jamming and anti-tracking capabilities. Digital filtering is incorporated to effectively suppress remote interference. An ARQ (Automatic Repeat Request) transmission mechanism is adopted to reduce data loss rates and improve data transmission reliability. The system supports the seamless transmission of various types of service data without discrimination. With its broadband transmission capability, it can support multimedia services such as clear voice, broadband data, and high-definition video. The system possesses adaptive adjustment capabilities for images, ensuring the continuity and smoothness of data and video services. COFDM technology is used to provide strong resistance to multipath interference. Dual antennas (Antenna 1 and Antenna 2) support TDD (Time Division Duplex) dual-transmit and dual-receive functions, enabling transmit/receive diversity.
II. Application Areas
Given its ability to meet complex communication needs such as security patrols for large events, urban counter-terrorism and stability maintenance command, firefighting and emergency rescue command and dispatch, emergency communication command, naval fleet coordination, and shore-to-sea communication, the Mesh wireless ad-hoc network system is widely applicable in fields including public security, firefighting, electric power, petroleum, water conservancy, forestry, broadcast and television communications, medical services, water resources, and aviation.
III. System Features
Centralized-Free, Same-Frequency Ad-Hoc Networking
The Mesh wireless ad-hoc network system operates on a single frequency without a central hub. All nodes have equal status, and a single frequency point supports TDD bidirectional communication, simplifying frequency management and offering high spectrum utilization. Any node device can function as a terminal node, relay node, or command node within the network. At any time and location, a wireless communication network can be rapidly established without the need for any other fixed communication network infrastructure (e.g., fiber optics, copper cables). All devices in this centralized-free, same-frequency ad-hoc network - including outdoor fixed stations, vehicle-mounted stations, and personal mobile stations - can automatically form a wireless Mesh network and begin real-time communication upon power-up.
High Reliability
Mesh wireless ad-hoc mobile base stations are designed to military standards: they are portable, durable, waterproof, and dustproof, making them suitable for various harsh environments. They can be rapidly deployed to meet emergency on-site communication needs. If one AP’s uplink fails, all clients on that AP would typically lose access to the WLAN network. However, wireless Mesh networks feature self-forming and self-healing capabilities. AP nodes in a Mesh network usually have multiple available links, effectively avoiding single points of failure.
High Mobility
The locations of emergency incidents are highly uncertain and variable. Therefore, it is necessary to establish temporary, portable base stations tailored to the specific circumstances of each incident. Field mobile base stations are temporary; they are set up as needed and decommissioned once the event concludes.
Rapid Deployment
In the face of emergencies, the ability to obtain timely, accurate, rapid, and in-depth real-time dynamic information from the scene is crucial for commanders at all levels to make correct judgments and determine operational strategies. The Mesh wireless ad-hoc network’s high-performance portable base station uses single-frequency networking to minimize on-site configuration and deployment complexity, meeting the requirements of frontline personnel for rapid networking and zero configuration in emergency situations.
Non-Line-of-Sight (NLOS) Transmission
Mesh wireless ad-hoc technology easily enables NLOS configurations. Its automatic relay特性 facilitates beyond-line-of-sight transmission. Signals can automatically select the optimal path, hopping continuously from one node to another until reaching the target node without requiring direct line of sight. This is a key technology for solving the "last mile" problem in various fields.
High Data Bandwidth and Rapid Mobility
The Mesh wireless ad-hoc network system offers a peak data bandwidth of 98 Mbps. Nodes possess non-fixed mobile transmission capabilities, and rapid movement does not affect high-data-bandwidth services. Services such as voice, data, and video remain unaffected by rapid changes in system topology or high-speed movement of terminals.
Security and Confidentiality
The Mesh wireless ad-hoc network system employs multiple encryption methods, including group encryption (for operating frequency, carrier bandwidth, communication range, networking mode, etc.), channel encryption, and source encryption. Designed for dedicated networks, it effectively prevents intrusion by unauthorized devices and intercepts or decryption of transmitted information, ensuring high network and information security.