This paper presents an algorithm for adaptive determination of the dead timeduring transient arcing faults and blocking automatic reclosing during permanent faults onoverhead transmission lines. The discrimination between transient and permanent faults ismade by the zero sequence voltage measured at the relay point. If the fault is recognised asan arcing one, then the third harmonic of the zero...

Firewalls are a crucial building block for securing IP networks. The usage of out-of-band-signaling protocols (such as SIP) for VoIP and multimedia applications requires a dynamic control of these firewalls, which can be implemented using the Simple Middlebox Configuration Protocol (SIMCO). In this paper, we study the performance of SCTP and TCP as transport protocols for the transaction-based ...

Tor, the popular anonymous relay tool, incurs significant latency costs—partly due to extra network hops, but also due to TCP’s strict in-order delivery. We examine the problem of TCP’s head-of-line blocking in Tor, although this problem affects any application multiplexing streams atop TCP. Using uTCP and uTLS, techniques for enabling unordered delivery in TCP and TLS, respectively, we elimina...

In the metropolitan area, traditional SONET/SDH circuit switched rings are likely to be replaced with optical packet/burst switching technologies. In this paper we consider a slotted WDM optical packet ring operating without resource reservation mechanisms. In such rings, optical packets in transit have priority over traffic to be inserted by the node. Packets to be inserted are thus queued acc...

Wireless network-on-chip (WiNoC) is considered as a novel approach for designing future multi-core systems. In WiNoCs, wireless routers (WRs) utilize high-bandwidth wireless links to reduce the transmission delay between the long distance nodes. When the network traffic loads increase, a large number of packets will be sent into the wired and wireless links and can...

Most routers in on-chip interconnection networks (OCINs) have multiple virtual channels (VCs) to mitigate the effects of head-of-line blocking. Multiple VCs necessitate VC allocation schemes since packets or flows must compete for channels when there are more flows than virtual channels at a link. Conventional dynamic VC allocation, however, raises two critical issues. First, it still suffers f...

This paper studies the effect that HOL (Head-of-Line) blocking in the packet injection queue has on the performance of bidirectional k-ary ncubes, for values of k over a certain threshold (around 20). The HOL blocking causes an unbalanced use of the channels corresponding to the two directions of bidirectional links, which is responsible for a drop in the network throughput and a rise in the ne...