Controller Area Network CAN is a serial com munications protocol for transmitting short control messages in a real time embedded system For larger messages several higher level transport pro tocols have been proposed and standardized for a wide range of applications These protocols gen erally assign the same xed priority to all frames in a given message This paper presents a new transport proto...

An important and fundamental issue in designing structured peer-to-peer networks is the tradeoff between the number of logical links and the number of hops. We present a flexible resource location protocol called K-Chord, for KC, which is based on the idea of proportional search. We conduct indepth study on KC. We show that KC achieves an excellent tradeoff between the number of logical links a...

Distributed applications are becoming increasingly complex, often requiring the simultaneous use of several communication channels with different qualitiesof-service. This paper presents the Appia system, a protocol kernel that supports applications requiring multiple coordinated channels. Appia offers a clean and elegant way for the application to express inter-channel constraints, such as, fo...

This paper proposes a new multicast protocol architecture that can be used for conferencing or online discussion groups. Sessions of this type have the characteristic that while all group members are usually listeners, several members can and often do become speakers during the course of the session. Another characteristic is that the group membership can change as members drop out or are added...

In this paper, we introduce and evaluate novel carrying mobile devices (e.g., PDAs, smart phones) with wire-Adaptive schemes for neighbor discovery in Bluetooth-enabled ad-hoc networks. In an ad-hoc peer-to-peer setting, neighbor search is a continuous, hence battery draining process. In order to save energy when the device is unlikely to encounter a neighbor, we adaptively choose parameter set...

Shared-nothing clusters are a well known and cost-effective approach to database server scalability, in particular, with highly intensive read-only workloads typical of many 3-tier web-based applications. The common reliance on a centralized component and a simplistic propagation strategy employed by mainstream solutions however conduct to poor scalability with traditional on-line transaction p...

Multi-mode capabilities are becoming more important for mobile terminal and network devices and can exploit the flexibility provided by SDR technology. The reason for this is that the number of different radio access technologies is increasing with the growing popularity of Wireless Local Area Networks (WLANs) and increasing diversity of cellular radio access technologies with 2G, 2.5G, 3G and ...

The last trends in Protocol Stacks Architectures lead to an increase of flexibility in Protocol Stacks in reaction to the current static and predefined stacks. COMSCRIPT is a new language and a new environment inside which protocol entities are handled and whole protocol stacks are completely configured and dynamically modified. This paper presents how the dynamical (re)configuration of protoco...

PATROCLOS (parallel transport subsystem for cell-based high-speed networks) is a transport subsystem to support modern applications, such as multi-media applications, in high-speed network environments. PATROCLOS increases the throughput performance by the integration of protocol and implementation issues. It provides the required functionalities between the media access layer interface of cell...