KAAN BÜR

   
 
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As communication networks evolve, new services with a diverse range of quality of service (QoS) requirements become available, which makes the efficient use of network resources a major issue. It is desirable to improve the network efficiency by adaptively assigning resources to services that have different QoS demands. Implementing digital high speed communication networks therefore requires a network control scheme that can absorb unexpected traffic fluctuations. Recent packet switching technologies provide this flexibility by virtualizing the network resources.

In the more recent past, we have witnessed the development of a new series of technologies based essentially on high-speed networking concepts, such as broadband Internet access and mobile communications. The increasing popularity of video, voice and data communications over the Internet and the rapid penetration of mobile telephony have stimulated a change in the expectations of wireless users. Novel wireless networking technologies embedded into portable computing devices enable an ever-growing number of users to communicate with each other while on the move, i.e., without being connected to a wired infrastructure. The number of group-oriented services and multimedia applications is increasing. Therefore, it is essential that wireless and multimedia be brought together. Ad hoc networks are impromptu communication groups formed by wireless mobile hosts, which are becoming increasingly popular as a result of these developments. They make their administrative decisions in a distributed manner without any centralized control. They are free from the boundaries of any pre-existing infrastructure. They can be deployed anytime, anywhere. They are considered for many commercial applications, including home networking, wireless local area networks, group-oriented computing, and short-term communication for disaster relief, community events and temporary offices.

Research and development are taking place to define the next generation of wireless broadband multimedia communication systems. While current communication systems are primarily designed for one specific type of application such as speech, video or data, the next generation will integrate various functions and applications. As my future research direction, I plan to investigate further the means of QoS management and seamless service provisioning to the next generation integrated heterogeneous networks.