says Robert J. Bartz in ‘CWTS – Certified Wireless Technology Specialist Official Study Guide’ (www.wileyindia.com).
The main objectives of a wireless LAN site survey are to find areas of RF coverage and interference sources as well as installation locations for hardware infrastructure devices such as access points, bridges, antennas, and any other devices that will be used with the wireless LANs, he begins. “The scope of the wireless LAN site survey is dependent on many factors, some of which include: size of physical location, intended use of the network, number of users, and performance expectations.”
For example, a small sandwich shop, which is approximately 1,200 square feet, with seating for about 15 people, and located in a small street retail mall, wishing to offer free Internet access as a convenience for its patrons, may not require a full-fledged site survey, Bartz explains. “In this case, a single access point would more than likely be sufficient for the number of users who access the wireless network at any one time and the type of data being sent across the access point.”
Deploying a wireless network in a manufacturing environment will not be as straightforward as general office or other deployment types, he informs. “Manufacturing environments have a completely different set of challenges, including equipment that operates in the 2.4 GHz ISM band, which means RF interference can be a major issue.” Other concerns include ‘harsh environmental conditions such as extreme temperature, grease, and dirt,’ and ‘aspects of the structure itself such as high ceilings.’
In warehouses, wireless networking may face unique challenges. Certain types of product in large quantities, such as paint and other liquids, can cause RF behaviours like refraction, absorption, and reflection, thereby affecting performance of the wireless network, the author instructs.
Essential addition to the network professionals’ shelf.
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