asic phones With voice only and basic SMS capabilities Tablets/Phablets Laptops With integrated modems (internal) With external modems (USB based) Using smartphones as modems for access to network Mobility of the devices could also determine usage patterns, as in: Access with no mobility (fixed laptops) Access with limited or localized mobility (within home or small areas) Access with low mobility (mobility in a car or low-speed transport, including by walking) Access with high mobility (higher speeds of travel, implying more complicated processing requirements from the network) Communication channel end points could be based on entity-dictated aspects of the processing, as in: Person-to-person communication (voice, SMS, MMS) Person-to-machine communication (online banking, entering data via phone) Machine to machine communications (phones registering for location updates, analytics and data collection, traffic monitoring applications) This is also important in profiling and modeling of usage based on the types of applications being used, as in: Social applications (presence, Facebook communication, notifications, Twitter) Gaming (online and multiplayer) Business applications (VPN, online applications, corporate network applications) Voice and multimedia communication applications (voice conferencing, video conferencing, chat) Entertainment (music, movies, video download) Personal e-mail CHAPTER 4 NETWORK ROADMAPS Instant messaging Content sharing (photos, video, music, file upload) Search services (location based content, need-based search, directories) KPIs need to be defined and tracked so as to understand the impact on the system due to the above-listed reasons and these may be: Tracking of resources: acquire, usage, and allocation: Physical layer resources Network layer resources Core network resources Turnaround time from the initiation of a request to the network and completion of the same Mobility statistics Time taken for location updates Number and types of location updates Handover statistics Number of