Our paper proposes a new quality of service concept for smart home services. We assume that every flat in a house has its own smart computer to perform local services and acts as an interface for the different sensors and actors inside the flat. These smart computers are interconnected using a plain switched Ethernet infrastructure. A central server offers shared services for each user and a gateway realizes Internet access. Based on the defined priority of each service, we present a solution to prevent congestion situations inside the network based on a distributed traffic shaping scheme. Furthermore, the proposed system is not only applicable to the smart home services scenario, it could also be applied to handle similar problems within classic computer networks and many other fields.

The usage of mobile phones has rapidly increased in the recent years. As the result of this, many companies have appeared at the markets that propose various services for mobile communication. Therefore, the customer's choice of the telephone provider depends both on the cost policy and the proposed services of the companies.In our work, innovative services for providers are introduced. They implement both centralized and decentralized control of mobile phones by having access to the kernel of the operating system running on the mobile phone. The delivery of multimedia contents to the mobile device can be done using one of the following options: direct communication between two mobile phones or indirect communication between two mobile phones via a server providing the multimedia content. This leads to an IP-based distributed multimedia mobile system in local and global areas.Our research in this field shows that mobile devices are comparable to any computer in the network that gives opportunity to download multimedia information. Our demonstration with client and server software will show the functional features of the developed system. I. SYSTEM DESCRIPTIONFirst of all, the aim of our work was to research the transmission of multimedia mobile content between two mobile phones and the ability to involve a third participant in this operation. Having reached an advanced stage of development of new technologies the users gladly play with their mobile devices, exchange different songs, pictures and so on. It is still quite expensive and has a peer-to-peer character without any possibility for searching wishful information. There are several technologies that might be useful to establish a communication channel between two mobile participants. We identified two possibilities for the data transmission via GSM and GPRS networks. We developed a system that is based on media-push technology in a mobile environment. According to our concept, mobile phones can be utilized as a network nodes to transport or to store different types of information, especially voice, video etc. The system is very promising for the following tasks:• Urgent and important information could be delivered without human interaction. • Information could be delivered from a mobile phone to a complete group of end-users. • Information could be delivered from a server to a group of end-users, initiated by the initiator mobile. It means that an initiator would be able to upload some information to the server and to order the server to deliver this content to several telephone subscribers. • Desired multimedia content could be looked up and retrieved within a complete mobile environment.At present, our system works with only one server that stores communication profiles about the end-users and the current multimedia content. The further development of this system deeply depends on the mobile network providers, their costs and networking policies, but on the basis of this system it is possible to develop a distributed IP-based multimedia mobile system all ...

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