Serving DNS Using a Peer-to-Peer Lookup Service.
... enough other nodes that queries will find a cached copy instead of reaching the responsible server. A similar argument shows that very quickly every node has a copy of incredibly popular blocks, as evidenced by the Slashdot test: after the first few thousand requests, virtually every node in the sys ...
... enough other nodes that queries will find a cached copy instead of reaching the responsible server. A similar argument shows that very quickly every node has a copy of incredibly popular blocks, as evidenced by the Slashdot test: after the first few thousand requests, virtually every node in the sys ...
VANET Routing on City Roads using Real
... in literature are often based on planar graph traversals, which were shown not to be as effective in VANETs due to radio obstacles, high node mobility, and the fact that vehicle positions are constrained on roads rather than being uniformly distributed across a region [6]. A number of road-based rou ...
... in literature are often based on planar graph traversals, which were shown not to be as effective in VANETs due to radio obstacles, high node mobility, and the fact that vehicle positions are constrained on roads rather than being uniformly distributed across a region [6]. A number of road-based rou ...
6. future work - Computer Science
... sufficient storage in the ATMEL's 128 KB of flash storage. ...
... sufficient storage in the ATMEL's 128 KB of flash storage. ...
Shrack: Description and Performance Evaluation of a Peer-to
... user’s interests, namely, adaptive document metadata filtering, peer selection, and knowledge integrator. To reduce information overload, the adaptive document metadata filtering module filters received document metadata that are relevant to the user’s interest and stores them in the peer’s archive. ...
... user’s interests, namely, adaptive document metadata filtering, peer selection, and knowledge integrator. To reduce information overload, the adaptive document metadata filtering module filters received document metadata that are relevant to the user’s interest and stores them in the peer’s archive. ...
Document
... Assumption 3 No distinction between hosts and routers Traditional hosts can become routers, such as when a phone becomes the router for a PAN attached to the phone Servers that act as forwarding agents for mobility purposes ...
... Assumption 3 No distinction between hosts and routers Traditional hosts can become routers, such as when a phone becomes the router for a PAN attached to the phone Servers that act as forwarding agents for mobility purposes ...
Tenet: An Architecture for Tiered Embedded Networks
... physical-layer connectivity between them. Furreasons. Finally, the existence of masters can enable more thermore, any mote in a Tenet can communicate aggressive management of mote energy resources: appliwith at least one master in that Tenet, unless no cations can adaptively adjust thresholds to lim ...
... physical-layer connectivity between them. Furreasons. Finally, the existence of masters can enable more thermore, any mote in a Tenet can communicate aggressive management of mote energy resources: appliwith at least one master in that Tenet, unless no cations can adaptively adjust thresholds to lim ...
Slides INTERACT-9
... – Need for maintaining network topology – Control messages consume network resources ...
... – Need for maintaining network topology – Control messages consume network resources ...
Chord - Networked Systems Laboratory
... • Next-hop decision: - For the given target key k, find the closest finger before (to) k and forward the request to it. - Ending condition: The request terminates when k lies between the ID range of current node and its successor node. - The routing path length is O(log n) for a n-nodes network with ...
... • Next-hop decision: - For the given target key k, find the closest finger before (to) k and forward the request to it. - Ending condition: The request terminates when k lies between the ID range of current node and its successor node. - The routing path length is O(log n) for a n-nodes network with ...
Signature based Intrusion Detection for Wireless Ad
... form of jamming the network nodes so as to prevent them from communicating with each other, draining the batteries of a good node by transmitting irrelevant (junk) packets to it continuously, launching attacks such as TCP SYN-FIN, teardrop, ping-of-death etc resulting in a denial of service. Hence, ...
... form of jamming the network nodes so as to prevent them from communicating with each other, draining the batteries of a good node by transmitting irrelevant (junk) packets to it continuously, launching attacks such as TCP SYN-FIN, teardrop, ping-of-death etc resulting in a denial of service. Hence, ...
Bluetooth-an Enabler for Personal Area Networking Presentation
... than one piconet. These inter-piconet nodes might have a slave role in numerous piconets but can have the master role in only one of them. Irrespective of the roles, the inter-piconet node must schedule its presence in all the piconets it is a member of, hence, an inter-piconet scheduling (IPS) algo ...
... than one piconet. These inter-piconet nodes might have a slave role in numerous piconets but can have the master role in only one of them. Irrespective of the roles, the inter-piconet node must schedule its presence in all the piconets it is a member of, hence, an inter-piconet scheduling (IPS) algo ...
Juggler: Virtual Networks for Fun and Profit
... There are many situations in which an additional network interface—or two—can provide benefits to a mobile user. Additional interfaces can support parallelism in network flows, improve handoff times, and provide sideband communication with nearby peers. Unfortunately, such benefits are outweighed by ...
... There are many situations in which an additional network interface—or two—can provide benefits to a mobile user. Additional interfaces can support parallelism in network flows, improve handoff times, and provide sideband communication with nearby peers. Unfortunately, such benefits are outweighed by ...
RPL (pronounced ripple) Routing Protocol for Low Power and Lossy
... Granularity of Security Services Granularity of security services depends on key type: – Peer-to-peer key; – Group key; – Network-wide key; – Digital signature key. Cryptographic protection against outsider devices only and not against potential malicious devices in key-sharing group. Granularity o ...
... Granularity of Security Services Granularity of security services depends on key type: – Peer-to-peer key; – Group key; – Network-wide key; – Digital signature key. Cryptographic protection against outsider devices only and not against potential malicious devices in key-sharing group. Granularity o ...
I.Research of Underwater Wireless Sensor Network
... Keywords: underwater wireless sensor networks;hydrometry monitoring; network topology architecture; data forwarding; routing protocol; I.Research of Underwater Wireless Sensor Network 1.1 Introduction and Basic Conception Wireless sensor network is a newly-developing research field covering multidis ...
... Keywords: underwater wireless sensor networks;hydrometry monitoring; network topology architecture; data forwarding; routing protocol; I.Research of Underwater Wireless Sensor Network 1.1 Introduction and Basic Conception Wireless sensor network is a newly-developing research field covering multidis ...
Preventing DoS Attacks in Peer-to
... against distributed DoS attacks because spoofed IP packets are filtered. Sekar et al. combine the strengths of both anomaly-based and specification-based techniques to develop a better network intrusion detection system [17]. Talwar and Nahrstedt use two different types of message integrity checks ( ...
... against distributed DoS attacks because spoofed IP packets are filtered. Sekar et al. combine the strengths of both anomaly-based and specification-based techniques to develop a better network intrusion detection system [17]. Talwar and Nahrstedt use two different types of message integrity checks ( ...
IOSR Journal of Computer Engineering (IOSR-JCE)
... be updated either in a full dump (the entire routing table is included inside the update) or an incremental update (which contains only those entries that, with a metric, have been changed since the last update was sent). The DSDV protocol requires each mobile station to broadcast its own routing ta ...
... be updated either in a full dump (the entire routing table is included inside the update) or an incremental update (which contains only those entries that, with a metric, have been changed since the last update was sent). The DSDV protocol requires each mobile station to broadcast its own routing ta ...
Slide 1
... Uses self-contained packets (datagrams - cf. telegrams) travel independently through network like letters in postal system but called datagrams - cf. telegrams. ...
... Uses self-contained packets (datagrams - cf. telegrams) travel independently through network like letters in postal system but called datagrams - cf. telegrams. ...
Enabling the Interplanetary Internet
... For example, the one-way light time between Earth and Mars can range up to 20 min. Contact opportunities lasting less than 40 min cannot exchange a single round-trip datagram. Likewise, when the frequency and duration of link disruption (bad pointing, low energy, or jamming) prevent protocol session ...
... For example, the one-way light time between Earth and Mars can range up to 20 min. Contact opportunities lasting less than 40 min cannot exchange a single round-trip datagram. Likewise, when the frequency and duration of link disruption (bad pointing, low energy, or jamming) prevent protocol session ...
Improving Ad Hoc Network Behaviour Using Clustering Technique with NS2 I
... the information groups, specifically referred to as packets, along and across an internetwork. The latter is called packet switching, which is easy to understand; by contrast, path determination can become complicated. Routing protocols adopt several metrics for calculating the best path before the ...
... the information groups, specifically referred to as packets, along and across an internetwork. The latter is called packet switching, which is easy to understand; by contrast, path determination can become complicated. Routing protocols adopt several metrics for calculating the best path before the ...
MuON: Epidemic Based Mutual Anonymity
... relay nodes till they reach the final destination (responder/initiator). Some anonymity protocols [29, 31, 32] multicast messages to a large group of nodes to provide anonymous communication. It is important to note that in both approaches, the anonymity in the system improves as the number of parti ...
... relay nodes till they reach the final destination (responder/initiator). Some anonymity protocols [29, 31, 32] multicast messages to a large group of nodes to provide anonymous communication. It is important to note that in both approaches, the anonymity in the system improves as the number of parti ...
Survey on Routing Protocol in Wireless Sensor Network
... Wireless sensor networks is widely considered as one of the most important technologies. WSN has provided a small and low cost sensor node with the capability of sensing various types of environmental phenomena and wireless communication [5,14]. In most WSN application, sensor nodes are deployed in ...
... Wireless sensor networks is widely considered as one of the most important technologies. WSN has provided a small and low cost sensor node with the capability of sensing various types of environmental phenomena and wireless communication [5,14]. In most WSN application, sensor nodes are deployed in ...
ecs251 Spring 2007 - UC Davis Computer Science
... Gnutella is a self-organizing, large-scale, P2P application that produces an overlay network on top of the Internet; it appears to work Growth is hindered by the volume of generated traffic and inefficient resource use since there is no central authority the open source community must commit to maki ...
... Gnutella is a self-organizing, large-scale, P2P application that produces an overlay network on top of the Internet; it appears to work Growth is hindered by the volume of generated traffic and inefficient resource use since there is no central authority the open source community must commit to maki ...
Slide 1
... Join: How do I begin participating? Publish: How do I advertise my file(s)? Search: How do I find a file? Fetch: How do I retrieve a file? ...
... Join: How do I begin participating? Publish: How do I advertise my file(s)? Search: How do I find a file? Fetch: How do I retrieve a file? ...
Peer-to-peer
Peer-to-peer (P2P) computing or networking is a distributed application architecture that partitions tasks or work loads between peers. Peers are equally privileged, equipotent participants in the application. They are said to form a peer-to-peer network of nodes.Peers make a portion of their resources, such as processing power, disk storage or network bandwidth, directly available to other network participants, without the need for central coordination by servers or stable hosts. Peers are both suppliers and consumers of resources, in contrast to the traditional client-server model in which the consumption and supply of resources is divided. Emerging collaborative P2P systems are going beyond the era of peers doing similar things while sharing resources, and are looking for diverse peers that can bring in unique resources and capabilities to a virtual community thereby empowering it to engage in greater tasks beyond those that can be accomplished by individual peers, yet that are beneficial to all the peers.While P2P systems had previously been used in many application domains, the architecture was popularized by the file sharing system Napster, originally released in 1999. The concept has inspired new structures and philosophies in many areas of human interaction. In such social contexts, peer-to-peer as a meme refers to the egalitarian social networking that has emerged throughout society, enabled by Internet technologies in general.