Latest research results

Papers presented on international conferences and in journals by Wireless@kth researchers

Presented at: The 6th CMI International Conference: Developing the future ICT infrastructure technologies, market, and policies, Aalborg University Copenhagen, Copenhagen, Denmark, 28–29 November 2013

Researcher: Tatjana Apanasevic

Abstract: The main focus of the ongoing research is to investigate obstacles and driving forces affecting a decision of Swedish retailers to invest in mobile payment solutions. The research is in its starting phase. And this paper presents initial results of a desktop analysis revealing the current market situation, identifying main players, and estimating the structure of investment costs. In order to do that available secondary information was analyzed.

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Presented at: The 24th European Regional Conference of the International Telecommunication Society, Florence, Italy, 20–23 October 2013

Wireless@kth researcher: Tatjana Apanasevic

Abstract: Swedish public transport organizations have set an objective to double usage of the public transport during the next coming five years. The conducted study attempts to investigate if the current ticket solutions support the goal of the public transport companies, and if the available mobile phone solutions can lower barriers for consumers.

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Presented at: IEEE PIMRC, London, UK, Sep. 8-11, 2013

Wireless@kth researcher: Sibel Tombaz

Abstract: Energy efficiency in mobile radio networks has recently gained great interest due to escalating energy cost and environmental concerns. Rapidly growing demand for capacity will require denser and denser networks which further increase the energy consumption. In this regard, the deployment of small cells under macro-cellular umbrella coverage appears a promising solution to cope with the explosive demand in an energy efficient manner.

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Presented at: 24th European Regional Conference of the International Telecommunications Society, Florence, Italy, 21-23 October 2013

Wireless@kth researcher: Evanny Obregon Gamarra

Abstract: The large expected increase in the capacity requirements raises not only technical issues but also regulatory and business challenges. One of the key methods to increase the capacity of mobile networks in a cost efficient way is to find additional frequency spectrum.

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Presented at: 4th European Regional ITS Conference, Florence, 20-23 October 2013

Wireless@kth researcher: Du Ho Kang

Abstract: Unlicensed spectrum indeed initiates high-data rate wireless services with thecombination of the great success of Wi-Fi technology. Interestingly, the local high datarate services are deployed and invested by non-traditional local actors, e.g., facility owners who have local fixed line infrastructure.

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Presented at: Proc. IEEE PIMRC, London, UK, Sep. 8-11, 2013

Wireless@kth researcher: Ki Won Sung

Abstract: Wireless data traffic has grown substantially and is expected to further increase in the coming years. Considering that 80% of the traffic will be generated indoors, it is important to investigate better ways of providing indoor capacity. Access to sufficient radio spectrum is one of the most important requirements for the indoor capacity provisioning.

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Presented at: In Proceedings of GROWN’2013, in conjunction with the 9th IEEE International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob 2013), Lyon, France, 7 October 2013.

Researcher: Cicek Cavdar

Abstract: In 2020, mobile access networks will experience significant challenges as compared to the situation of today. Traffic volumes are expected to increase 1000 times, and the number of connected devices will be 10-100 times higher than today in a networked society with unconstrained access to information and sharing of data available anywhere and anytime to anyone and anything. One of the big challenges is to provide this 1000-fold capacity increase to billions of devices in an affordable and sustainable way. Low energy consumption is the key to achieve this.

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Presented at: 5th International Workshop on Reliable Networks Design and Modeling(RNDM), Almaty, Kazakhstan, September 10-12, 2013.

Researchers: Cicek Cavdar and Aras Tarhan.

Abstract: Recently, the Internet traffic demand has been rising up by approximately 40% every year, corresponding to the doubling of the demand every two years. Furthermore, it is very likely that this trend will continue due to the massively increasing use of Internet services such as Video on Demand (VoD), high definition Internet Protocol (IP) TV, cloud computing and grid applications requiring high amount of data rate.

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Presented at: IEEE PIMRC, London, UK, Sep. 2013.

Researcher: Du Ho Kang

Abstract: Most of currently deployed Wi-Fi networks use the IEEE 802.11b/g standard and operate in 2.4 GHz ISM band. As mobile traffic demand rapidly increases, significant Wi-Fi deployment in the still very lightly used 5 GHz band is anticipated. In combination with the recent PHY amendments, e.g., 802.11ac, such Wi-Fi in many settings emerges as a strong competitor to small cellular deployment.

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Presented at: 12th International Conference on Mobile Business (ICMB2013), Berlin, Germany, June 2013; and the 2nd Cashless Society Roundtable, Dublin, Ireland, April 2013.

Researcher: Tatjana Apanasevic.

Abstract: Multi-functionality of smart mobile devices is continuously being enhanced demonstrating new capabilities for mobile service application areas. The Near Field Communication (NFC) technology implemented on the base of contemporary mobile handsets can provide considerable benefits to end-users. Indeed, range of areas where it could be applied is very wide, including contactless payment, mobile ticketing, client loyalty applications, smart advertisement applications, physical and logical access, and other functionalities.
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