e cubby-like Continued Wi-Fi Standards, Architecture, and Use in Cellular Networks spaces at which nurses can sit down at computers for tasks that take longer to accomplish, such as writing intake and discharge reports. The hospital is instituting the use of barcode scanners to minimize errors in dispensing medication. Every time a nurse administers medi- cation for infusion or oral intake, she scans the bar code on her own identification badge, the patient's wrist bracelet, and the medication container. A green LED on the scanner indicates that the medication is correct; red indicates an error. The scanners will be connected to com- puters that are hardwired to a mobile cart. As a supplement to other therapies, speech and occupational therapists already use iPads and Wii game consoles with special programs that are used to enhance cognitive and keyboard therapies. The most difficult challenge in deploying new applications is user acceptance. There are 400 nurses in the facility and most of them did not grow up with this degree of technology. They resist using applications that they perceive as adding to their workload. Therapists, doctors, and nurses all want easy-to-use applica- tions that require little or no training. To overcome possible resistance, the hos- pital brought in three mobile carts, each configured differently, and let the nurses try them all out and recommend the one they liked best. To ensure acceptance and success of the bar code scanning initiative, the hospital conducted a survey to ensure that the wireless network was adequate. Dead spots or difficulties accessing the central drug-dispensing database can lead to resistance in adopting the scanners. The hospital hired consultants to conduct the wireless audit to determine if there were dead spots in wireless Wi-Fi coverage. The consultants wheeled medical carts with bar code scanners throughout the facility to ensure that there was satisfactory coverage everywhere. The IT depart- ment is adding access points where needed for uniform Wi-Fi co