Radical differences in channel characteristics coupled with endnode mobility make wireless networking sufficiently different from wired networking. Unfortunately, under current implementations of most operating systems a local area wireless network is treated as "just-another-wired-network" and is exposed to the higher layer networking protocols, operating system, and applications as an Etherne...

The NetWare operating system is designed specifically to provide service to clients over a computer network. This design has resulted in a system that differs in several respects from more general-purpose operating systems. In addition to highlighting the design decisions that have led to these differences, this paper provides an overview of the NetWare operating system, with a detailed descrip...

Interrupt coalescing is a feature implemented in hardware on many of today’s high-performance network interface cards (NIC). It allows a reception of a group of network frames to be notified to the operating system kernel via a single hardware interrupt, thus reducing the interrupt processing overhead, particularly at high packet rates. However, the delays introduced by interrupt coalescing can...

As the interconnection of distributed generation (DG) and energy storage system (ESS), the operation of DG/ESS should be optimized and coordinated. The intermittence of renewable energy and the error of the load forecasting, which is usually taken as the raw data of the global optimization algorithm, cause difference between the actual and the optimal operating status of the network. Feeder Con...

vehicular ad-hoc network (vanet) is an important component of intelligent transportation systems, in which vehicles are equipped with on-board computing and communication devices which enable vehicle-to-vehicle communication. consequently, with regard to larger communication due to the greater number of vehicles, stability of connectivity would be a challenging problem. clustering technique as ...

In existing multicomputers, software overhead dominates the message-passing latency cost. Our research on the SHRIMP project at Princeton indicates that appropriate network interface support can signi cantly reduce this software overhead. We have designed two network interfaces for the SHRIMP multicomputer. Both support virtual memory mapped communication allowing user processes to communicate ...

The contents of this work reeect the views of the authors who are responsible for the facts and accuracy of the data presented. Responsibility for the application of the material to speciic cases, however, lies with any user of the report and no responsibility in such cases will be attributed to the author or to the University of Canterbury. Abstract The interaction network has been proposed as...

This paper presents several methods for harmonizing a distributed operating system with parallel and distributed applications. "Harmonization" means that the system does not conflict with parallel/distributed applications and enables them to control mapping and scheduling for speedup and reliability. In conventional distributed operating systems, one of the most important goals is to achieve ne...

The constraints of sensor networks, an emerging area of network research, require new approaches in system design. We study the evolution of abstractions and techniques in TinyOS, a popular sensor network operating system. Examining CVS repositories of several research institutions that use TinyOS, we trace three areas of development: single-hop networking, multi-hop networking, and network ser...

In designing operating system support for distributed multimedia, we target three areas for improvement: reduced copying, reduced reliance on explicit kernel-user interactions , and provision of rate-based ow control. Towards these goals, we propose an architecture that includes the concept of I/O eecient buuers for reduced copying, the concept of fast system calls for low latency network acces...