The technologies available for use in WLANs include infrared, UHF (narrowband) radios, and spread spectrum radios. The two spread spectrum techniques that are most prevalent are frequency hopping and direct sequence. The choice of radio technology may be less important than the wireless networking software selected which can also have a major impact on system performance and throughput. In additional to the technical factors noted, many business factors that the organization must also consider when selecting a WLAN vendor. In order to properly evaluate a WLAN vendor, it is important for Riordan to make a list of requirements, including current and future needs. Matching the organization's requirements against the offerings of each WLAN vendor will allow Riordan to shorten the list of prospective solutions. Riordan may discover that no single vendor will match all of the current and future WLAN requirements. In this case, Riordan must consider future product plans with the vendors to determine which offers the development and migration options that most closely meets the organization's …show more content…
The coverage pattern of WLAN radios within a building can be potentially affected by walls, ceilings, and even the composition of the building's construction. When considering the decision to implement, management must consider the different antenna options available. An experienced vendor should be able to supply management with a complete site survey that details what the installation plan will be. Though there are numerous other business factors management must consider, the final one to be covered in this discussion is the level of service and support available both during and after the installation. Once a WLAN system is installed and operational, service and support become critical factors for continued success of the system. Changes in the system requirements, the physical environment, applications, or system components are best handled by a vendor that provides on-site service and