This paper introduces a novel approach for extending DMB service area by making use of existing IP networks. DMBonIP Gateway, which provides RTP/SDP based internet streaming service by generating media streams in real time from the DMB ensemble received from the air, is introduced for this purpose. This paper addresses key functional components of DMBonIP […]
Feb
Sep
This paper proposes an adaptive hybrid data broadcast scheme for wireless converged networks. Balanced allocation of broadcast resource between Push and Pull and adaptation to the various changes of user request are keys to the successful operation of a hybrid data broadcast system. The proposed scheme is built based on two key features, BEI (Broadcast […]
Aug
The ability to recognize many tags simultaneously is crucial for many advanced RFID-based applications. The tag anti-collision algorithm of an RFID system, which arbitrates collisions on the air interface among tags in the same reading range of a reader, makes a great influence on the speed and the reliability in multiple tag recognition. This paper […]
Aug
Handoff is one of the most important factors that may degrade the performance of TCP connections in wireless data networks. The authors present a lossless handoff scheme called LPM (Last Packet Marking). LPM signals the safe handoff cue by sending a specially marked packet to mobile hosts. Our performance study shows that LPM achieves lossless packet delivery […]
Feb
Recently, the IEEE 802.11 working group has announced a new distributed access mechanism called Enhanced DCF (EDCF) to provide service differentiation among traffic classes defined as access category. With the increasing demand for supporting Quality of Service (QoS) in IEEE 802.11 wireless LANs, the EDCF is now attracting many researchers’ attention due to its practical […]
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