The demand for better quality, greater variety of content, option to consume interactive services are the main points for the growing of the technology and fall in the taste of users. The Television over IP is an alternative technology to DTH that instead of using satellite systems uses a part of the internet bandwidth. This requires a set-top box to change the IP signal to your television. To be able to use the service you need at least an exclusive connection of 4 Mbps for HD content with MPEG-4 compression. However, each channel determines the transmission rate, such as Globo TV that requires HD programming delivering to the client at 18 Mbps.
In addition to the interactive system, you can do purchases, access movie sites, videos, music and photo presentations without the necessity of a computer. In the security system can highlight two transmission systems, CAS (Conditional Access System) where there is control of transmission of a service to the consumer; and DRM (Digital Rights Management) that allows or not the use of digital imaging products, video or audio.
In Brazil, the pioneer was Brasil Telecom with Videon in Brasilia (DF), allowing the viewer to acquire films, documentaries, cartoons, concerts, shows and exclusive content that go beyond the concept of broadcasting, as a combination of telephony services directly on television. Today there are some initiatives at Telefônica, Oi, CTBC and Sumicity in Rio de Janeiro.
Another trend is the Unicast mode, since the possibility IPTV content and flexibility, such as on-demand services. The programming grid (EPG) customization is a one-way, in case of interactivity, and there is a lot of opportunities, exploration and a lot of research to do in this field. It is worth mentioning that connectivity with mobile devices is essential to the success of IPTV and the possibility of content in 4K and 8K with compatible TVs.
The success of the service will depend on some regulatory obstacles and other technologies such as FTTH, with the aid of optical fiber on delivery of a service with great quality. The QuadPlay with IPTV can replace the use DTH, excluding satellite system dependence, which in adverse conditions the signal may be interrupted, such as during storms or co-exist in a hybrid way. In 2015, the increase in service was 43.24% compared to the previous year, DTH had 60.07% of the market in July 2015, against 61.01% in December 2014 (according to data from Convergecom).
Among the problems faced in Brazil to implement the mass service, there is the limitation of Internet quality (great use of radio, instead of optical fiber) and outdated infrastructure that do not support enough amounts of data. It is therefore essential investment in fiber and high-capacity backbones for the proper functioning. By the end of this year, it is likely that Brazilian market grows along the upgrades of IPTV.
More news on the subject and future trends, you can see here in Broadcast Brazil.