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Dated: Jul. 11, 2013
Related CategoriesNetworking In General
The growth rate of data traffic in recent years has been an unprecedented trend in mobile communications. If consumption data in mobile networks continues to grow at the same pace, significant transformation in many aspects of the business is inevitable: the network, the business model, appliances, even users. The rapid growth of mobile broadband services and digital content (video streaming, online gaming, social networks) and sales growth of smartphones and tablet devices generate increasing traffic demands in mobile networks.
Tablet users are more inclined to video content (which is consistent with a larger screen of tablets compared to smartphone), while smartphone users primarily download apps. Operators are worried whether they will be able to meet such requirements. Another problem for operators is that the exponential growth of traffic is not nearly accompanied by adequate revenue growth. According to the Cisco Visual Networking Index (VNI) global mobile data traffic will, in the period between 2012 and 2017. have an annual growth of 60%, which means that in five years it will be ten times greater! Mobile video traffic will amount to 50% of total mobile data traffic in 2016 , and in the last year, 2012. year, its share was about 46%. Operators should not allow traffic congestion and the emergence of "bottlenecks" in the network, so they have to find the right technology, the right partners and the right business model for the maintenance and improvement of their income. As one of the measures of preventing congestion in the network, some large operators have abolished the unlimited consumption of data. Such moves could lead to an outflow of disappointed users, accustomed to high-value services. Better practice and pragmatic approach is that operators of their mobile data traffic "translate" and "communicate" through the fixed network and it is called offload mobile data traffic.
There are several ways to offload data traffic, and the best known are WiFi offload and offload by femtocells. WiFi offload have an important place in the discussions at the last Mobile Communication World Congress in Barcelona (MWC 2013), belonged to WiFi technology, which in addition to the benefits currently represents a major challenge for the operators, especially in terms of monetization (charge) access and security. By using WiFi technology, operators partially solve the problem of lack of spectrum, which is essentially the main cause of possible congestion in the network. WiFi until today by applying the so-called. hotspots was an addition to fixed broadband business. The key benefit of application of WiFi and its operation in the unlicensed frequency bands around 2.4 GHz and 5 GHz around. WiFi range is several tens of meters and the flow depends on obstacles in the environment and the number of active users in the hotspot.
As an offload technology, WiFi provides operators the following benefits: low cost (many available devices to access, use of unlicensed parts of the spectrum), high availability (access points can be installed in public places, business centers, shopping centers, academic and government institutions ...) large distribution (a large number of mobile devices, smartphone, laptop, tablet computers have a built-in Wi-Fi access, which can be used wherever it is possible). Tomorrow you will see the second part of this article.
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