Case Study on Hybrid Business Model： KT＇s Olleh TV Skylife

This paper aims to analyze a case of a telecom operator, Korea Telecom （KT）＇s hybrid business model---Olleh TV Skylife （OTS）. This case is KT＇s new hybrid network and set-top-box （STB） which combines Internet Protocol TV （IPTV） with Direct-To-Home （DTH） satellite reception and business. It serves now as a guideline to better understanding hybrid consumer behavior and their needs. This paper shows how KT＇s OTS has been formulated as a new business model, how it has changed the market structure, and how it has experienced a successful market performance with new business idea and innovative technology. Before analyzing this case, it firstly discusses about the technological situation and the industrial organization （IO） theory. After this, it shows the previous service offerings of cable TV, satellite TV, and IPTV, before launching OTS and shows that the mixed service portfolio of satellite TV and IPTV is the perfect service combination to beat the cable TV in terms of hybrid consumer needs. After explanation about OTS, this paper verifies whether this hybrid business model really changes market and generates a good market performance and operating synergy with KT＇s other businesses of content, network, and marketing. In conclusion, this paper expects future growth potential of OTS and KT Skylife in terms of subscription fee, home shopping, and advertising sales based on the total subscriber base.

A Case Study on Korea Telecom Skylife＇s （KTS＇s） Business Model Innovation Based on the Business Model Framework （BMF）

The aim of this paper is to assess business performances of a satellite TV--Korea Telecom Skylife （KTS）---to innovate its business model related to current technical events such as hybrid platform, digital conversion, and Intemet connected TV. For this, a theoretical logic is approached what levels of business model innovations there are, based on the ＂business model framework （BMF）＂ theory by Henry Chesbrough. Based on this theoretical backdrop, this study focuses on KTS＇s approach to utilize technical events to develop its business model and contribute to the company＇s earnings and operating cost expenditure. In conclusion, it will show the feasibility and the limitation to upgrade this firm＇s business model innovation in the smart media business ecosystem based on the last technical event, Internet connected TV.

Mathematical model for computing precise local tie vectors for CMONOC co-located GNSS/VLBI/SLR stations

The seven co-located sites of the Crustal Movement Observation Network of China（CMONOC） in Shanghai, Wuhan, Kunming, Beijing, Xi＇an, Changchun, and Urumqi are equipped with Global Navigation Satellite System（GNSS）, very long baseline interferometry（VLBI）, and satellite laser ranging（SLR） equipment. Co-location surveying of these sites was performed in 2012 and the accuracies of the solved tie vectors are approximately 5 mm.This paper proposes a mathematical model that handles the least squares adjustment of the 3D control network and calculates the tie vectors in one step, using all the available constraints in the adjustment. Using the new mathematical model, local tie vectors can be more precisely determined and their covariance more reasonably estimated.

Source analysis of spaceborne microwave radiometer interference over land

Satellite microwave thermal emissions mixed with signals from active sensors are referred to as radio- frequency interference （RFI）. Based on Advanced Micro- wave Scanning Radiometer-Earth Observing System （AMSR-E） observations from June 1 to 16, 2011, RFI over Europe was identified and analyzed using the modified principal component analysis algorithm in this paper. The X band AMSR-E measurements in England and Italy are mostly affected by the stable, persistent, active microwave transmitters on the surface, while the RFI source of other European countries is the interference of the reflected geostationary TV satellite downlink signals to the measurements of spacebome microwave radiometers. The locations and intensities of the RFI induced by the geostationary TV and communication satellites changed with time within the observed period. The observations of spacebome microwave radiometers in ascending portions of orbits are usually interfered with over European land, while no RFI was detected in descending passes. The RFI locations and intensities from the reflection of downlink radiation are highly dependent upon the relative geometry between the geostationary satellite and the measuring passive sensor. Only these fields of view of a spaceborne instrument whose scan azimuths are close to the azimuth relative to the geostationary satellite are likely to be affected by RFI.