There is no doubt that mobile users, especially mobile workers, need to communicate with other people, colleagues, partners, customers, etc. The mobile phone, by meeting this real demand has become a highly appreciated device for the users. This paper published by Telenor presents a mobile email solution based on XML Web Services technologies, which takes into account the limitations of the mobile phones.
The global mobile market has seen unprecedented growth in its subscriber base. The growth is expected to continue in the future due to the new emerging mobile technologies and services in mature markets, and the potential of the emerging markets. This paper published by presents long-term forecasts for the mobile markets in Western Europe covering the period 2004 - 2012. In particular, the development of the number of users and number of handsets in use with respect to different access technologies, and the development of the mobile subscriptions per technology are focused on.
This paper aims on the performance evaluation of different combinations of digital modulation (QPSK, 16-QAM, 64-QAM) and channel coding schemes under NLOS channel conditions. The considered channel coding consists of concatenated Reed-Solomon and Convolutional Code followed by block interleaving and adopts the code rates and bit interleaver block sizes of the different modulation and coding options specified for the IEEE 802.16 Wireless MAN-OFDM PHY.
Future wireless and persistent services require advanced value networks and extensive cooperation between operator and service provider. This paper has looked into the connotation of pervasive computing through a scenario called CyberCity. In CyberCity every citizen can offer situated services to every other citizen. The paper discusses how an operator can support this scenario by providing a platform of enabling services that can be used by all service providers in exchange for proceeds for the operator and identifies a number of these enablers that are necessary for implementing CyberCity.
Voice over WLAN (VoWLAN) is a natural progress of VoIP. It is also a probable supplement or a potential competitor to 3G mobile systems. This white paper overviews of WLAN technologies and the issues that are appropriate for voice communication over WLAN. A review of accessible papers on real-time communication over WLAN highlights the challenges to VoWLAN, user equipment features and the market potentials are discussed.
The majority of methodical work on the performance of IEEE 802.11 focuses on predicting the throughput and the mean delay of only the medium access, although higher layer applications and protocols are interested in the total performance. The main contribution of this paper is that it presents the full delay distribution through the z-transform. The z-transform is derived from an analytical model that works in the whole range from a lightly loaded, non-saturated channel to a heavily congested, saturated medium. The model describes the priority schemes of the Enhanced Distributed Channel Access mechanism of the IEEE 802.11e standard.
This paper tries its best to provide a comprehensive description of the mobile phone and a presentation of its evolution in terms of architecture, functionality, bandwidth, wireless access technologies, etc. from a simple communication device to becoming a universal companion of the user. The paper also gives an overview of development trends of the mobile phone.
The main idea of the OBAN concept is that the future deployment of broadband access lines and wireless LANs will have so much excess capacity, beyond what will be utilized by the host households, that it can also accommodate public wireless access services. The purpose of this paper published by Telenor is to analyze the viability of this idea with respect to traffic capacity. The paper presents three types of results. Radio coverage has been analyzed for three cases of OBAN environments.
This paper published by Telenor addresses some of the potential benefits IEEE 802.11e may have (compared to legacy IEEE 802.11) when deploying WLAN as an open access network that may also be applied for roaming users, like e.g. the concept studied in the IST OBAN project. The main intension is to try to quantify the benefits of applying the features of the IEEE 802.11e when it comes to the possibility of differentiation among user classes and different traffic types. The actual benefits are discussed for a scenario where both residential and roaming user-traffic competes for the WLAN capacity.
OBAN (Open Broadband Access Networks) is to explore the possibility to utilize the spare capacity of the privately owned fixed broadband access line to form a public broadband wireless network based on Wi-Fi. Wi-Fi both, in the private sphere as a mobile add-on to the fixed broadband line, as well as a broadband public wireless alternative to 2G and 3G mobile networks. This paper describes several possible business scenarios associated with the proposed technical development, and discusses their relative merits with particular emphasis on the situation for incumbent fixed and mobile operators, and emerging hotspot operators.