Wireless Internet Platform For Interoperability Research Articles

A Study on the WIPI-to-Tizen Converter for Smart Game Contents Compatibility

The WIPI (Wireless Internet Platform for Interoperability) is legislated by KWISF (Korea Wireless Internet Standardization Forum) and a standardized standard chosen by KTTA (Korea Telecommunications Technology Association) as an application program execution environment for mobile communication platforms. Tizen platform developed by Samsung is an open source smart phone platform, which is created for wide range of device. which is created for wide range of device. Due to the use of different smart phone platforms, mobile contents developers must create content designed specifically for each platform or use a conversion process to provide game content to consumers. In this paper, to resolve this problem, the WIPI-to-Tizen smart game converter was designed to automatically translate game contents from the WIPI platform to the Tizen platform for smart phones. Through the WIPI-to-Tizen converter, resources such as images and sounds can be converted, APIs can be converted using a platform mapping engine. These and all other content conversion functions were examined. Test results indicate that the graphics, image, sound, and other functions of converted Tizen games were equivalent to those of the WIPI games before conversion.

Design and implementation of the WIPI-to-Android automatic mobile game converter for the contents compatibility in the heterogeneous mobile OS

Given that mobile communication companies choose different mobile platforms, game developers must create content designed specifically for each platform or use a conversion process to provide game content to consumers. In this paper, to resolve this problem, the WIPI-to-Android automatic mobile game converter was designed to automatically translate game contents from the WIPI (Wireless Internet Platform for Interoperability) for feature phones to the Android platform for smart phones. Through the WIPI-to-Android converter, resources such as images and sounds can be converted, APIs can be converted using a platform mapping engine, and source code can be translated using the source translator. These and all other content conversion functions were examined. Test results indicate that the graphics, image output, sound output, and other functions of converted Android games were equivalent to those of the WIPI games before conversion. Furthermore, most converted Android game content responded more quickly than the WIPI game content.

The Politics of Technological Upgrading in South Korea: How Government and Business Challenged the Might of Qualcomm

How has industrial restructuring and technological upgrading in South Korea undertaken in the post-crisis era impacted on the state's capacity to guide strategic industry development? The latest reincarnation of the ‘end of the developmental state’ thesis proposes that industry policies are losing their strategic long-term oriented character due to the state's lack of legitimacy to play a guiding role after the economic recovery. I test this view in light of the Korean state's role, since the early 2000s, in the promotion of a new mobile communications software standard known as the Wireless Internet Platform for Interoperability (WIPI). I argue that the Korean state retains a strategic long-term approach to techno-industrial governance. The argument is developed through examining how bureaucratic actors gained the legitimacy to challenge Qualcomm, the strategy involved in promoting WIPI, and how the bureaucracy supported domestic firms under an increasingly open international trading environment. The findings reveal the state's ability to renew its legitimacy to play a developmental role through re-articulating policy goals from catching-up to nurturing innovation. Furthermore, the state has experimented with new forms of cooperation between government and business to nurture the growth of new infant technological growth sectors such as telecommunications.

A low-power baseband modem architecture for a mobile RFID reader

Currently the RFID (Radio Frequency IDentification) systems become used in many areas, especially for delivery, manufacturing, and maintenance of goods. For example, a tag reader or a tag interrogator communicates with tags attached on goods, reads their identification codes, and accesses their related database through a network infrastructure. This approach makes it easy to maintain goods very efficiently in large-scale markets, delivery systems, and so on. There are many research activities in RFID systems for industrial applications, but there is few on mobile and portable devices such as cellular phones and PDAs. This paper presents an architecture overview of a multi-protocol RFID reader on mobile devices with detailed description of hardware implementation. We have considered several design parameters, such as low power consumption, cost effectiveness and flexibility. Also, since our architecture supports WIPI (Wireless Internet Platform for Interoperability), any WIPI application can use our RFID reader's functionalities to query tags' information from Internet through HAL interfaces. We prototyped our system on the ARM-based Excalibur FPGA with iPAQ PDA, and also a chip with 0.18~um technology for verification of our architecture.

The political economy of standards setting by newcomers: China's WAPI and South Korea's WIPI

In 2004, China attempted to set its national standard for mobile security (wireless LAN authentication and privacy infrastructure (WAPI)) which was to be used for wireless LAN. In 2005, Korea implemented a national standard for the mobile Internet platform (wireless Internet platform for interoperability (WIPI)). This paper examines and compares the two cases in terms of the role of government, characteristics of each standard and the process of standards setting. Despite some similarities of ‘aiming for a de jure national standard’, ‘government-initiated’ and ‘anticipatory’, the outcomes of the two efforts are different. WIPI was ratified in Korea, while WAPI was indefinitely postponed as the national standard and failed to be ratified as an international standard. It is contended here that the different outcomes are attributed to differences in the openness of the standards and of institutional processes of standardization, combined with the government role and the timing of market entry. In the cause of national security, China adhered to the original goal of WAPI; in the WIPI case, compromises were made to satisfy to some extent the various demands from many stakeholders despite the original goal being undermined. The findings from this comparison reinforce findings by previous studies on open standard and open standardization processes. This paper makes a unique contribution in that it first examines the international standards-setting attempts by newcomers, China and Korea, in the race for international standards. They used to be standard adopters but now want to become standard setters. Given the narrowing gap of technological capabilities at the global level and the huge size of markets in countries like China, these standards challenges from newcomers are not one-off episodes, but will happen repeatedly in the future. Further research is required in this area.

Development of a T-DMB extended WIPI platform for interactive mobile broadcasting services

In this paper, we present the architecture of the interactive terrestrial digital multimedia broadcasting (T-DMB) system using the code division multiple access (CDMA) network for the new interactive broadcasting services. We also propose the novel structure of the novel platform based on wireless Internet platform for interoperability (WIPI), which is the standard specifications for the mobile platform in Korea, to co-operate broadcasting and telecommunication. The proposed extended WIPI platform is implemented as an emulator on PC, and an integrated browser which shows multimedia broadcasting data including AV contents and interactive data returned through the telecommunication network, is developed to carry on with it. And then to verify the proposed platform and the interactive mobile broadcasting services, we implemented the integrated receiver as well as the data broadcasting server and the return channel server. Users can get interactive services or more information about broadcasting contents through CDMA network by using the proposed platform. This shows a possibility of new interactive services in digital broadcasting by using mobility of T-DMB and CDMA

선호도 전이 확률을 이용한 멀티미디어 컨텐츠 추천 시스템

최근에 서비스되기 시작한 디지털 멀티미디어 방송은 다양한 종류의 수많은 컨텐츠를 제공하기 때문에 고객은 때로 자신이 선호하는 컨텐츠를 찾는데 많은 시간을 소비한다. 심지어는 선호 컨텐츠를 찾는 동안 이미 방송이 끝날 수도 있다. 이와 같은 문제를 해결하기 위해서는 고객이 필요로 하는 최소 정보만을 추천하기 위한 방법이 필요하다. 본 논문에서는 고객이 시청한 컨텐츠 선호도 전이 확률을 이용하여 고객이 선호하는 컨텐츠를 미리 예측하여 추천하기 위한 알고리즘과 시스템을 제안한다. 제안하는 시스템은 클라이언트 관리자 에이전트, 모니터링 에이전트, 러닝 에이전트, 그리고 추천 에이전트 모듈로 구성된다. 클라이언트 관리자 에이전트는 다른 모듈과 상호 작용을 하면서 조정자 역할을 한다. 모니터링 에이전트는 컨텐츠에 대한 고객의 선호도를 분석하기 위해 고객이 이용했던 usage history 데이터를 수집하기 위한 에이전트이다. 러닝 에이전트는 고객으로부터 수집된 usage history 데이터를 정제하여 시간 변화에 따른 상태 전이 행렬로 모델링하기 위한 에이전트이다. 추천 에이전트는 고객의 상태 전이 행렬로 구성된 모델링 데이터에 본 논문에서 제안하는 선호도 전이 확률 모델을 이용하여 고객이 바로 다음에 선호하게 될 컨텐츠를 추천하기 위한 에이전트이다. 추천 에이전트 모듈에서 컨텐츠에 대한 고객의 선호도 전이 확률을 이용하는 추천 알고리즘을 제안한다. 제안하는 추천 시스템은 무선 인터넷 표준 플랫폼인 WIPI(Wireless Internet Platform for Interoperability) 플랫폼에서 프로토타입 시스템을 설계, 구현하였으며, 실험결과 제안된 선호도 전이 확률 모델의 추천 정확도가 전형적인 방법에 비해 효과적임을 보인다. Recently Digital multimedia broadcasting (DMB) has been available as a commercial service. The users sometimes have difficulty in finding their preferred multimedia contents and need to spend a lot of searching time finding them. They are even very likely to miss their preferred contents while searching for them. In order to solve the problem, we need a method for recommendation users preferred only minimum information. We propose an algorithm and a system for recommending users' preferred contents using preference transition probability from user's usage history. The system includes four agents: a client manager agent, a monitoring agent, a learning agent, and a recommendation agent. The client manager agent interacts and coordinates with the other modules, the monitoring agent gathers usage data for analyzing the user's preference of the contents, the learning agent cleans the gathered usage data and modeling with state transition matrix over time, and the recommendation agent recommends the user's preferred contents by analyzing the cleaned usage data. In the recommendation agent, we developed the recommendation algorithm using a user's preference transition probability for the contents. The prototype of the proposed system is designed and implemented on the WIPI(Wireless Internet Platform for Interoperability). The experimental results show that the recommendation algorithm using a user's preference transition probability can provide better performances than a conventional method.

A channel recommendation system in mobile environment

Digital multimedia broadcasting service has been at the center of developing issues in mobile environment. In contrast to traditional multimedia broadcasting systems, mobile devices have limit of information handling capacity. In order to solve the problem, this paper presents a personalized channel recommendation system at client side in mobile environment. The system includes four modules: client manager agent, monitoring agent, data preparation agent and recommendation agent. Within the recommendation agent, we develop a recommendation algorithm using users' preference transitions for the channels. Also, we design and implement the prototype system on the wireless Internet platform for interoperability. In the experiment, we compare the proposed algorithm with a conventional method. The experimental results show that the proposed recommendation system can provide better performance than the conventional method.