Detailed analysis: Wireless ADSL Broadband Access solution (1)

The coexistence of wired and wireless networks has a wonderful effect on the combination of wired and wireless networks. It can be cleverly designed for different situations to fulfill the WiMax wireless standard prospects. Combine the advantages of the two to make the network ubiquitous.

With the maturity of the broadband technology and the decrease of the market application threshold, the ADSL Broadband business has gradually gained the recognition of market applications. In some service fields, such as hotels, airports, large conference rooms, and restaurants, the degree of business intelligence is regarded as the criteria for evaluating service quality. Therefore, how can we effectively combine broadband and wireless networks, creating the prospect of WiMax wireless standards, thus improving service levels and meeting the needs of increasingly booming mobile office have become a question for service providers. Similarly, in the construction of networks in some industries, such as campus networks, even if the construction of various broadband private networks is complete, it is also faced with the problem of how to satisfy the mobile teaching network business.

At present, although different business needs exist in these fields, they have the following features in the application environment: first, large business flow, frequent crowd flow, and flexible access methods are required, moreover, it provides high-quality network quality. Second, as a supplement to wired networks, to build wireless networks, we need to consider the original network facilities, save costs as much as possible, and optimize the network structure, establish an economic access mode. Based on the above factors, D-Link designs two sets of WiMax wireless standards based on the actual situation of urban hotspots and campus networks, different user groups can enjoy "free broadband" wireless networks.

1. ADSL Access Solution in urban hotspot areas

The WiMax wireless standard is designed for public places such as hotels, airports, large conference rooms, and restaurants. In these places, users with high traffic and Internet access needs are generally business users who need to stay for a short time and have mobile PCs, laptops, handheld computers, and other mobile office equipment. Taking these factors into account, the flexible wireless access method is adopted in the solution, and DSL-604 + wireless ADSL Router is selected as the wireless broadband interface, and the telephone line is connected to the Internet network. In terms of coverage, a DSL-604 + indoor wireless coverage of up to 100 meters, outdoor width can be up to 400 meters, the user can be based on the actual application needs, determine the number of installation. The lower-end mobile users can easily achieve wireless Internet access by configuring the corresponding wireless network card. In the solution, D-Link provides three optional NICs: DWL-650 +, DWL-120 +, and DWL-660W.

The main features of this solution are: the unique 22 m wireless access can better meet the bandwidth requirements of users; supports a variety of wireless access terminal products; built-in DHCP and NAT, reducing the cost of network construction for Small and Medium LAN; DSL-604 + Built-in firewall function, to ensure the security of the local area network; the use of pre-payment card billing method, payment and Internet access is simple, account unified.