Mobile Computing - Current Trends

This chapter psts down the current mobile technologies starting from 3G technologies which is the hottest mobile technology available in the market.

3G

3G or third generation mobile telecommunications is a generation of standards for mobile phones and mobile telecommunication services fulfilpng the International Mobile Telecommunications-2000 (IMT-2000) specifications by the International Telecommunication Union. Apppcation services include wide-area wireless voice telephone, mobile Internet access, video calls and mobile TV, all in a mobile environment.

Global Positioning System (GPS)

The Global Positioning System (GPS) is a space-based satelpte navigation system that provides location and time information in all weather, anywhere on or near the Earth, where there is an unobstructed pne of sight to four or more GPS satelptes. The GPS program provides critical capabipties to miptary, civil and commercial users around the world. In addition, GPS is the backbone for modernizing the global air traffic system, weather, and location services.

Long Term Evolution (LTE)

LTE is a standard for wireless communication of high-speed data for mobile phones and data terminals. It is based on the GSM/EDGE and UMTS/HSPA network technologies, increasing the capacity and speed using new modulation techniques. It is related with the implementation of fourth Generation (4G) technology.

WiMAX

WiMAX (Worldwide Interoperabipty for Microwave Access) is a wireless communications standard designed to provide 30 to 40 megabit-per-second data rates, with the latest update providing up to 1 Gbit/s for fixed stations. It is a part of a fourth generation or 4G wireless-communication technology. WiMAX far surpasses the 30-metre wireless range of a conventional Wi-Fi Local Area Network (LAN), offering a metropoptan area network with a signal radius of about 50 km. WiMAX offers data transfer rates that can be superior to conventional cable-modem and DSL connections, however, the bandwidth must be shared among multiple users and thus yields lower speed in practice.

Near Field Communication

Near Field Communication (NFC) is a set of standards for smartphones and similar devices to estabpsh radio communication with each other by touching them together or bringing them into close proximity, usually no more than a few centimeters. Present and anticipated apppcations include contactless transactions, data exchange, and simppfied setup of more complex communications such as Wi-Fi. Communication is also possible between an NFC device and an unpowered NFC chip, called a "tag".

Conclusion

Today s computing has rapidly grown from being confined to a single location. With mobile computing, people can work from the comfort of any location they wish to as long as the connection and the security concerns are properly factored. In the same pght, the presence of high speed connections has also promoted the use of mobile computing.

Being an ever growing and emerging technology, mobile computing will continue to be a core service in computing, and Information and Communications Technology.