Technology

Introduction About Wi-Fi Offloading

Wi-Fi is a very important complement to cellular in providing high-quality broadband services to smartphone users, especially indoors. Cellular networks offer great performance and blanket coverage over large areas, but are not always robust at indoor locations. Wi-Fi fills in the gap. Wi-Fi traffic by mobile and Wi-Fi only devices will count for more than half of the IP traffic in the year 2022. Mobile Data Offloading. More simply known as, data offloading. These can be strategies about complementary network technologies as well as new approaches about data delivery whose destination was targeting the mobile cellular network to release congestion in addition to getting better use of the resources that are already present. Wi-Fi offloading should be tested very deeply by carriers from a viewpoint that it is providing users with a clear, high-quality experience. One of the good ways in which mobile operators can add more capacity in a cheap and flexible manner is through offloading users from 3G/4G networks to Wi-Fi networks. This maintains a crystal clear quality of experience for users, even as users’ needs and application needs scale.

Wireless capacity is nearing its Shannon limit; in fact researchers from both academic circles and also the industry are on their look-out for the next big solution. In fact, no singularity modification cure can cure all that is being looked for- but instead there will be an emerging system that is able to seize the best opportunities. This paper addresses two opportunities for load reduction at the cellular level: (a) proliferation of Wi-Fi access points as a source of offload; and (b) wireless device collaboration. The former applies to an urban area in which Wi-Fi is deployed while the latter applies almost everywhere. This is as far as spectrum needs are being predicted by neither cellular or Wi-Fi systems; (See, for example, ITU documents). Instead analyze the long-term dynamic between cellular and Wi-Fi usage, the quality of Wi-Fi as a solution to capacity. Both the motivation of Wi-Fi deposits on the user as well as the trade-off for the same in deposits also require a lot of cellular spectrum as the traffic that can be loaded per-site over cellular is much higher. Wi-Fi provides a very valuable complement to cellular in the delivery of high-quality broadband services to smartphone users, especially indoors.

Cellular networks provide high performance over wide areas, but sometimes they cannot blanket indoor locations very well. Wi-Fi fills the gap in locations where owners and users need better coverage and access speed, although we see little evidence that today’s Wi-Fi networks reduce the amount of traffic on cellular networks by much. In fact, there are indications that when users have both good quality Wi-Fi and good quality cellular available, usage levels on both tend to increase. In some of the most advanced markets analysed qualitatively and quantitatively most of today’s Wi-Fi traffic is incremental or complementary to cellular traffic. Venue-based Wi-Fi will play a very important role in indoor broadband connectivity. It will be used by cellular operators to deliver the “best always connected” value proposition, but will not reduce capacity demands on cellular networks. The prospects for Wi-Fi to provide significant capacity relief in congested areas of the cellular network are limited. Both Wi-Fi and cellular traffic will grow at meteoric speed, adding complementary capabilities. Each will require more spectrum to provide universal broadband access.

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