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The Always Best Connected (ABC) Service - Science/Technology - Nairaland

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The Always Best Connected (ABC) Service by sardius: 5:56pm On Feb 19, 2017
The diversification of wireless communication has come to a point where end user communication requirements are easily met through the amalgamation of existing technologies. In places such as hotels, airports and conference centers, the need for high bandwidth access to the internet can be easily met with more than one existing technology, to create an enhanced end user experience. Combining the features of access technologies, such as DSL, Bluetooth and WLAN over cellular systems such as UMTS, CDMA2000, 2.5G, 3G, 4G, end users can stay connected in the best ways possible to applications and devices of their choice.

A user’s connectivity preferences will change as a function of the size and ability of his/her device, its application requirements, security features, existing operator policies, available networks infrastructure and network coverage. Depending on these preferences a user may require single access or parallel multiple access and from the technology pool, this is allocated as occasion demands to ensure that the end user at all times has the best connection.

This however creates complexity not only at the technical solutions level but also at the business relationship level between the operator and the service providers.

A good scenario is Mike in the middle of a conference and gets an important call over Skype on his smart phone and decides to take it, as he is connected to the 4G network via the conference center’s WLAN hotspot, he excuses himself from the auditorium and begins talking in the lunch room outside. He is informed he has to return to the office for a meeting with a new client and exits the conference while switching to Skype chat with his supervisor at the office. While getting to the subway, after being disconnected from the conference hot spot, his device begins searching for other available accesses and finds 3G coverage, the smart phone then reconnects the Skype application over the 3G network and continues Mike’s Skype session. While Mike’s was on the way, his supervisor at the office begins a video conference session with the new client and Mike as participants. The Skype session begins to adapt to the limited device capability and access technology and gives Mike speech and text components only. When Mike arrives at the office he transfers the Skype video conference session from his smart phone to his laptop, which is now connected to the WLAN in his office building, the Skype application discovers that the device and access network capabilities change and includes the video component back into Mike’s session. Alternatively Mike could setup his own private area network (PAN) comprising his smart phone, tablet and lap top computer and stay connected using the 3G network on his smart phone. Meaning that all devices can stay in sync continually over his PAN and applications such as email, calendar and phone book can stay up to date.

This is a good example of how wireless technologies can come together to keep the end user connected in the best way continually, to any point on the internet using the access networks that are most suitable at each point in time. This has been termed as the Always Best Connected (ABC) service and its deployment requires infrastructure for authentication, authorization and accounting (AAA) along with support for levels of mobility, application adaptability, virtual private networks (VPN) and business relationship between actors.

By

Christopher Orji, MIEEE MSAIEE
Engineer and Principal Technology Consultant at Phanerus Technologies Limited
www.phanerus.com

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