Overall Planning of 802.11n Wireless Networks

At the beginning of the network application, we should plan well to prevent network problems. However, network problems are also emerging. Currently, 802.11n wireless networks are the main application body. So what should we pay attention to during network laying? The following describes how to plan the 802.11n wireless network.

Although the advantages of 802.11n have been paid more and more attention by WLAN Equipment Manufacturers and have aroused a wide discussion in the industry, no one yet has been able to explain how 802.11n wireless networks play a role, or, more importantly, under what circumstances will it fail!

Network Planning should pay attention to three factors: Context, Coverage, and Capacity, collectively referred to as "3C" in network planning ". Technological advances in the 802.11n standard have affected all three factors. In terms of background, network planners must consider the impact of new 40 MHz channel interference and multi-input, multi-output (MIMO) technologies related to specific field complexities on channel planning and Access Point settings. In terms of coverage, designers should understand the differences between 802.11n and traditional systems in terms of coverage, and make correct definitions of coverage requirements according to network requirements. Finally, the 802.11n standard data transmission speed and MAC layer efficiency are improved, so the network capacity will also increase; however, only by correctly planning the distribution of network customers can the increased capacity be fully utilized.

The obstacles to 802.11n Planning indicate that correct planning of the 802.11n wireless network is an arduous task. Without the use of network modeling technology related to a specific site, this work will become extremely difficult. LANPlanner11.0, a tool that Motorola provides to network planners, is designed to completely clean up design, elimination, and alternative network migration for planning projects, or a simple pre-deployment survey that requires collection for phased migration can meet the network requirements of 802.11n.

Performance Prediction for specific sites

802.11a/B/g Planning has always been a computing-intensive task. 802.11n involves additional non-intuitive multi-channel factors, improving the importance of modeling specific sites.

LANPlanner11.0 provides support for 802.11n planning and takes the site-specific effect into account in data transfer rate calculation. These prediction functions are indispensable when you plan to deploy or migrate a new 802.11a/B/G network to support 802.11n wireless networks. Motorola recommends that companies deploying 802.11n wireless networks use LANPlanner to simulate their deployment plans before making update decisions.

"Traditional-11n" Migration wizard

A large number of Industry discussions have proved that the most likely case for the first round of 802.11n deployment is to migrate the existing 802.11a/B/G network to support 802.11n. In this case, LANPlanner11.0 provides the network migration wizard (NetworkMigrationWizard) to help you achieve this goal. Based on user-defined migration restrictions (including regions of interest, customer distribution, and migration policies), LANPlanner will provide recommended basic deployment policies to meet specific needs of various environments. Network planners can easily enter network performance requirements, and then simulate a variety of migration scenarios to effectively determine the optimal network migration path and related costs.

Comparison between 802.11a/B/g and 802.11n

Using LANPlanner11.0, The 802.11n Performance Improvement task will no longer be a bunch of complex workbooks or cold numbers. When planning an 802.11n wireless network, you can clearly see the performance improvement of the 802.11n deployment in the heatmap of a specific site. Additionally, you can see the outstanding automatic report function of the LANPlanner, the advantages of 802.11n migration can be easily and effectively communicated to users.

The investigation function of 802.11n takes into account problems related to 40 MHz channels, DFS compatibility with 5 GHz channels, and the impact of customer distribution on network performance, the significance of pre-deployment surveys for implementation of 802.11n is obviously greater than that for 802.11a, B, and G networks. In view of this, the LANPlanner survey tool, Motorola sitegion, provides local support for the 802.11n survey through a widely used, industry-standard 802.11nWLAN card.

In addition to pre-deployment surveys, this feature also helps customers verify the performance of 802.11n access points after network deployment is complete. Because MIMO systems require customer connection and data transmission from access points, Motorola has improved the access point performance model of sitebench to meet these new requirements.

Automatic Adjustment of Performance Prediction

LANPlanner has always provided users with powerful LANPlanner network planning mode optimization tools. Performance data collected from sitebench measurements can be used to form a feedback loop for 802.11n performance prediction. Through optimization, you can achieve the most accurate prediction of the 802.11n Access Point mode.

LANPlanner is part of Motorola 802.11n's overall solution. The solution also includes Motorola's AP-7131802.11n access points and RFS6000 and RFS700 WLAN switches available for 802.11n. In recent years, Motorola has provided many enterprises with a series of Wireless LAN infrastructure solutions to achieve real wireless enterprises. Motorola's innovative wireless Enterprise portfolio provides both indoor and outdoor wireless coverage. Motorola's wireless solutions are equivalent or superior to fixed networks in terms of elasticity, security, and performance, significantly reducing network deployment and maintenance costs and ensuring cost-effective wireless connections within the enterprise.