Wangjing Technology Park Wireless Mesh Network case

Recently, Wangjing Science Park, located in the northeast of the urban district of Beijing, completed the first phase of the wireless network project, with an overall planned area of about 8 square kilometers. It is an emerging integrated high-tech park integrating living, culture, education, scientific research, and high-tech industries. It is reported that the Wangjing Science and Technology Park has deployed a Wireless network using the world's leading adelia Wireless Mesh Technology Azalea Wireless Mesh ), provides an outdoor wireless broadband Internet access environment for business visitors, office staff, park management staff, and enterprises in the park at any time, anywhere, and on demand.

I. Requirement Description:
Anytime, anywhere broadband network access capability
Business visitors, campus office staff, campus management staff, and some enterprises in the park have strong network requirements and high dependence, and require network access anytime and anywhere.
Higher Network Security
Network users in the campus are sensitive to network security and have high security requirements. The campus network is completely isolated from the internal network of the enterprise and is independently built.
Higher scalability
The park is in a rapid development stage and has high requirements on network scalability.

Based on the above requirement description, the traditional wired network cannot fully meet the network requirements of Wangjing Technology Park to a certain extent, including the control of outdoor value-added Internet access services and overall network ownership costs. Through comprehensive comparison, adelia technology's wireless mesh network technology networking solution can best meet the various network needs of Wangjing Technology Park.

This technology is called a wireless Mesh Network (Wireless Mesh Network) or "multi-hop" network. It is a new wireless network technology that is completely different from the traditional wireless network. In traditional wireless LAN (WLAN), each client accesses the network through a wireless link connected to the AP. If you want to communicate with each other, you must first access a fixed access point (AP ). In a wireless Mesh network, any wireless device node can act as both an AP and a router. each node in the network can send and receive signals, each node can communicate directly with one or more peer nodes.

Ii. Design Principles
Wangjing Pioneer Park's wireless network coverage solution is designed based on the following principles: practical, advanced, stable, open, scalable, secure, highly available and economical.

Iii. solution design
3.1 wireless coverage of Pioneer Park
Office buildings A, B, and C in the Pioneer Park;
Indoor halls, office areas, and other places in E and F office buildings in the Pioneer Park;
Pioneer Park outdoor square, including parking lots, Fountain Square and rest areas among other hot areas.

Figure: wireless coverage of Pioneer Park

3.2 overall solution design
Fully considering the needs of the entrepreneurial Park and following the network design principles, the wireless network construction of the entrepreneurial Park adopts the Wireless Mesh Technology for independent networking. Network coverage is a combination of indoor and outdoor devices.
3.3 The overall network topology is shown below:

Figure: Overall Network Topology

3.4 Wangjing Science Park expansion plan
The design of this scheme not only takes into account the current needs of Wangjing Science and Technology Pioneer Park, in addition, we plan and reserve resources for the 1.15 square kilometers of Wangjing Science Park, which has already been built out of Wangjing Pioneer Park, and for the wireless coverage of the planned area of Wangjing Science Park in the future, based on this construction scheme, the entire network can be smoothly expanded to meet the needs of the main enterprise outdoor squares and a reception hall in Wangjing Science Park in the future, such as the squares and reception halls of companies such as Motorola, Ericsson, Nortel, and Agilent; coffee houses, restaurants, and hotels in the park area; and wireless indoor and outdoor coverage of commercial areas such as banks in the Park area.

Iv. Technical advantages
Compared with traditional network technologies, the wireless mesh network has the following advantages:
The advanced adaptive wireless routing protocol is adopted, which is more efficient than the traditional method, and can be customized, managed, and self-Repaired anytime, anywhere on demand.
It adopts innovative multi-Radio, multi-band, and multi-channel Radio planning to minimize the negative interference caused by the expansion of the wireless network.
Wider coverage, higher coverage quality, more support for users, and more stable work. The powerful multi-hop transmission function further improves business strain sensitivity and network anti-destruction and self-healing capabilities;
More sensitive and effective identification of application categories and optimized transmission.
Integrated with innovative wireless security mechanisms, the system can still work normally if multiple nodes in the network cannot work;
Use a powerful, easy-to-manage, and sensitive network management system. Users can manage the entire network in an intuitive and dynamic visual manner quickly, efficiently and conveniently;
Compatible with existing 802.11a/B/g terminals. users do not need to modify any hardware or purchase additional equipment;
The completion of the phase I Wireless Network Project of Wangjing Science and Technology Park greatly improves the network coverage of the park, optimizes the business environment of the park, and improves the information service level of the park. The successful implementation of this project in Wangjing Science and Technology Park also proves that the wireless mesh network technology has been widely recognized as a stable, mature, and economical networking technology, it has strong application scalability for commercial and residential areas.