PULC is a user-level communication library for workstation clusters. PULC provides a multi-user, multi-programming communication library for user level communication on top of high-speed communication hardware. In this paper, we describe the design of the communication subsystem, a rst implementation on top of the ParaStation communication card, and benchmark results of this rst implementation....

Wireless multi-hop networks have been envisioned to have many potential applications, e.g., a small stand-alone network for a group of mobile users (Mobile Ad Hoc Networks), a costefficient stub-network to connect to the Internet (Wireless Mesh Networks), or a self-organized community network connecting houses together (Wireless Community Networks). However the preliminary deployment experience...

TCP Vegas detects network congestion in its early stage and successfully prevents the periodic packet loss that usually occurs in traditional schemes. It has been demonstrated that TCP Vegas achieves a much higher throughput than TCP Reno. However, TCP Vegas cannot prevent unnecessary throughput degradation when congestion occurs on the backward path. A routerbased congestion avoidance scheme f...

Due to the challenging network conditions posed by a highly-dynamic airborne telemetry environment, it is essential for the transport protocol to provide automated mechanisms that dynamically adapt to changing end-to-end performance on any path. The AeroTP multi-mode transport protocol provides service tailored to the requirements of the telemetry mission control and data packets, achieving bet...

Due to the challenging network conditions posed by a highly-dynamic airborne telemetry environment, it is essential for the transport protocol to provide automated mechanisms that dynamically adapt to changing end-to-end performance on any path. The AeroTP multi-mode transport protocol provides service tailored to the requirements of the telemetry mission control and data packets, achieving bet...

With the increasing diversity of wireless access technologies, and the further integration of mobile communication and heterogeneous wireless networks, more and more mobile devices equipped with multiple network interfaces. The mobile devices, which have integrated multi-homing technology, can transmit data through multiple network interfaces to improve the quality of data transmission for user...

Most studies on TCP over multi-hop wireless ad hoc networks have only addressed the issue of performance degradation due to temporarily broken routes, which results in TCP inability to distinguish between losses due to link failures or congestion. This problem tends to become more serious as network mobility increases. In this work, we tackle the equally important capture problem to which there...

MIMO frequency hopping OFDM-CDMA : a novel uplink system for B3G cellular networks p. 8 Transient capacity evaluation of UWB ad hoc network with MIMO p. 18 Chip-by-chip iterative multiuser detection for VBLAST coded multiple-input multiple-output systems p. 26 The performance analysis of two-class priority queueing in MPLS-enabled IP network p. 34 Constraint based LSP handover (CBLH) in MPLS ne...

TCP Vegas detects network congestion in the early stage and successfully prevents periodic packet loss that usually occurs in TCP Reno. It has been demonstrated that TCP Vegas achieves much higher performance than TCP Reno in many aspects. However, TCP Vegas cannot prevent unnecessary throughput degradation when congestion occurs in the backward path, it passes through multiple congested links,...