GSM ARCHITECTURE-Mobile Communication.pptx
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This document discusses mobile operating systems and synchronization in mobile computing. It provides information on several mobile operating systems including Symbian OS, Palm OS, Windows CE, and Linux-based operating systems like Android, WebOS and Tizen. It also discusses concepts of synchronization between mobile devices and servers, mobile device management, use of mobile agents and gateways, and service discovery protocols.
GSM ARCHITECTURE-Mobile Communication.pptx
- 1. Dr.R.SUGANYA HEAD & ASSISTANT PROFESSOR DEPARTMENT OF INFORMATION TECHNOLOGY BON SECOURS COLLEGE FOR WOMEN. THANJAVUR
- 2. GSM system architecture ⢠The GSM system architecture contains a variety of different elements, and is often termed the core network. ⢠It is essentially a data network with a various entities that provide the main control and interfacing for the whole mobile network.
- 3. RATIO INTERFACE ⢠GSM is based on both FDMA and TDMA techniques.In GSM, each RF channel has a bandwidth of 200 kHz, which is used to convey radio modulated signals, or carriers. Each pair of uplink/ downlink channels is called an absolute radio frequency channel (ARFC) and is assigned an ARFC number (ARFCN).
- 4. HANDOVER SECURITY ⢠A handover is a process in telecommunications and mobile communications. ⢠In which a connected cellular call or a data session is transferred from one cell site (base station) to another without disconnecting the session. High-Speed Circuit-Switched Data: ⢠High Speed Circuit Switched Data (HSCSD), is an enhancement to Circuit Switched Data (CSD). ⢠The original data transmission mechanism of the GSM mobile phone system, four to six times faster than GSM, with data rates up to 57.6 kbit/s. Channel allocation is done in circuit-switched mode, as with CSD.
- 6. UNIT-IV DATA SYNCHRONIZATION IN MOBILE COMPUTING SYSTEMS
- 7. Synchronization in mobile computing: â˘Synchronization occurs when a mobile device communicates with applications on a personal computer or a server. ... Applications on the device can transfer and receive data from applications on the computer so that both the computer and the device have the same information. â˘Mobile Device Server: â˘Mobile device management generates a centralized plan for managing multiple device types with varying operating systems such as iOS, Windows, Android, tvOS, Chrome OS, and macOS.
- 8. Mobile Agent ⢠A mobile agent is a composition of computer software and data that is able to migrate (move) from one computer to another autonomously and continue its execution on the destination computer.
- 9. Gateways ⢠A gateway is a hardware device that acts as a âgateâ between two networks. ⢠It may be a router, firewall, server, or other device that enables traffic to flow in and out of the network. While a gateway protects the nodes within network, it also a node itself. ... ⢠A router is a common type of gateway used in home networks
- 10. Service discovery ⢠Service discovery is the automatic detection of devices and services offered by these devices on a computer network. ⢠A service discovery protocol (SDP) is a network protocol that helps accomplish service discovery. Service discovery aims to reduce the configuration efforts required by users and administrators.
- 11. DEVICE MANAGEMENT ⢠Mobile device management generates a centralized plan for managing multiple device types with varying operating systems such as iOS, Windows, Android, tvOS, Chrome OS, and macOS. Mobile file: ⢠Mobile file management software is typically installed on a corporate file server like Windows 2008, and on a mobile device such as tablet computers and smartphones, e.g., Android, iPad, iPhone, etc. ... The files are transferred highly encrypted â e.g. according to AES 256-bit industry standard.
- 13. OPERATING SYSTEMS ⢠A mobile operating system is an operating system that helps to run other application software on mobile devices. . ⢠The operating systems found on smartphones include Symbian OS, iPhone OS, RIMâs BlackBerry, Windows Mobile, Palm WebOS, Android, and Maemo. Android, WebOS, and Maemo are all derived from Linux.
- 14. PALM OS ⢠Palm OS is a discontinued mobile operating system initially developed by Palm, Inc., for personal digital assistants in 1996. ⢠Palm OS was designed for ease of use with a touchscreen-based graphical user interface. It is provided with a suite of basic applications for personal information management.
- 15. WINDOWS CE ⢠Windows Consumer Electronics) Microsoftâs version of Windows for handheld devices and embedded systems that use x86, ARM, MIPS and SuperH CPUs. ⢠Introduced in 1996, Windows CE was renamed âWindows Embedded CEâ as of Version 6.0 in 2006 and then renamed âWindows Embedded Compactâ in 2008.
- 16. Symbian OS ⢠Symbian is a discontinued mobile operating system and computing platform designed for smartphones. ⢠Symbian was originally developed as a proprietary software OS for PDAs in 1998 by the Symbian Ltd. consortium.
- 17. Linux for mobile devices â˘Tizen is an open source, Linux-based mobile operating system. It is often dubbed an official Linux mobile OS. â˘As the project is supported by the Linux Foundation.Despite being based on Linux, Tizen OS has been marred by security issues
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