Topic
Fast packet switching
About: Fast packet switching is a research topic. Over the lifetime, 5641 publications have been published within this topic receiving 111603 citations.
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Papers
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17 Mar 2013
TL;DR: A methodology to empirically quantify the energy consumption associated with packet processing, storage and switching in high-capacity routers is developed and provides valuable insights for improving the energy efficiency of routing equipment and networks.
Abstract: We develop a methodology to empirically quantify the energy consumption associated with packet processing, storage and switching in high-capacity routers. Our approach provides valuable insights for improving the energy efficiency of routing equipment and networks.
31 citations
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TL;DR: The proposed schemes are designed to allow multiple relay nodes to receive a source packet through source-to-relay broadcast channels, resulting in multiple copies of the source packet, which are stored in relay node buffers.
Abstract: Motivated by the recent buffer-aided relaying protocol that selects the best available link at each time slot, we herein introduce an additional degree of freedom to the protocol by simultaneously exploiting multiple links between the source node and the multiple buffer-aided relay nodes, which is enabled owing to the broadcast nature of wireless channels. More specifically, the proposed schemes are designed to allow multiple relay nodes to receive a source packet through source-to-relay broadcast channels, resulting in multiple copies of the source packet, which are stored in relay node buffers. As the explicit benefits of its increased design degree of freedom, the proposed protocols attain a significantly lower end-to-end packet delay than the conventional buffer-aided relaying protocols, which is achieved without imposing any substantial penalty on the achievable outage probability. Furthermore, the proposed protocol is capable of reducing the overhead required for monitoring the available links and buffer statuses of the relay nodes. Based on the Markov chain model, we derive the theoretical bounds of the outage probabilities of the proposed protocols.
31 citations
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03 Mar 2004TL;DR: In this article, a system for reliably broadcasting a data packet under an ad-hoc network environment including a determining unit for determining whether or not at least one node receiving the broadcast data packet is a relay node, a comparing unit for comparing a first relay node sequence number contained in a management packet which the node transmits with a second relaynode sequence number stored in a neighbor table of the node.
Abstract: A system for reliably broadcasting a data packet under an ad-hoc network environment including a determining unit for determining whether or not at least one node receiving the broadcast data packet is a relay node, a comparing unit for comparing a first relay node sequence number contained in a management packet which the node transmits with a second relay node sequence number stored in a neighbor table of the node, and a control unit for determining whether or not the data packet is retransmitted to the node according to a result of the comparison of the comparing unit. By comparing the second relay node sequence number stored in the neighbor table of the node which has broadcast the data packet with the first relay node sequence numbers transmitted through a Hello packet, it is possible to check whether or not the data packet is lost during broadcasting, and thus it is possible to reduce a loss factor of the data packet which is generated during broadcasting. Thereby, the data packet can be reliably broadcast.
31 citations
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28 Mar 2014TL;DR: In this article, the packet loss may be signaled using spoofed packets, such as a spoofed NACK packet, spoofed XR packet, or spoofed ACK packet, and a lost packet may be retransmitted at the MAC layer.
Abstract: A video encoding device (e.g., a wireless transmit/receive unit (WTRU)) may transmit an encoded frame with a frame sequence number using a transmission protocol. The video encoding device, an application on the video encoding device, and/or a protocol layer on the encoding device may detect a packet loss by receiving an error notification. The packet loss may be detected at the MAC layer. The packet loss may be signaled using spoofed packets, such as a spoofed NACK packet, a spoofed XR packet, or a spoofed ACK packet. A lost packet may be retransmitted at the MAC layer (e.g., by the encoding device or another device on the wireless path). Packet loss detection may be performed in uplink operations and/or downlink operations, and/or may be performed in video gaining applications via the cloud. The video encoding device may generate and send a second encoded frame based on the error notification.
31 citations
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04 Feb 1999
TL;DR: In this article, a statistical switching method is described, which involves computing tags from a packet to identify the flow a packet belongs to, looking up the tag in a table to provide switching information and using the switching information to switch the packet without analyzing the whole packet.
Abstract: A statistical switching method is described. The method involving computing tags from a packet to identify the flow a packet belongs to, looking up the tag in a table to provide switching information and using the switching information to switch the packet without analyzing the whole packet. If there is no entry for the flow based on the tag generated from the packet, the packet is sent to a router for further analysis. When the analysis is complete the switching information is provided to the table. If a packet which computes the same tag arrives at the switch before the router has finished analyzing the first packet of the flow, the new packet is dropped. The statistical switch has a non-zero probability of misdirecting a packet due to the possibility that two packets belonging to different flows may produce the same tag. The statistical switch provides high-speed switching and routing capabilities at low cost.
31 citations