Detecting Wormhole Attacks in Wireless Sensor Networks
... In a typical wormhole attack, the attacker receives packets at one point in the network, forwards them through a wired or wireless link with less latency than the network links, and relays them to another point in the network. This paper describes a distributed wormhole detection algorithm for wirel ...
... In a typical wormhole attack, the attacker receives packets at one point in the network, forwards them through a wired or wireless link with less latency than the network links, and relays them to another point in the network. This paper describes a distributed wormhole detection algorithm for wirel ...
Tapestry: A Resilient Global-Scale Overlay for Service
... messages to a live node that has responsibility for the destination key. They can also support higher level interfaces such as a distributed hash table (DHT) or a DOLR layer [3]. These systems scale well and guarantee that queries find existing objects under nonfailure conditions. One differentiatin ...
... messages to a live node that has responsibility for the destination key. They can also support higher level interfaces such as a distributed hash table (DHT) or a DOLR layer [3]. These systems scale well and guarantee that queries find existing objects under nonfailure conditions. One differentiatin ...
A Connectionless Approach to Intra- and Inter
... the knowledge of the path computation algorithm and its parameters. We propose a new idea that given the knowledge of various upgraded routers and their path computation algorithms, an upgraded router can locally compute and validate the existing multi-paths. We propose a two phase validation algori ...
... the knowledge of the path computation algorithm and its parameters. We propose a new idea that given the knowledge of various upgraded routers and their path computation algorithms, an upgraded router can locally compute and validate the existing multi-paths. We propose a two phase validation algori ...
T R ECHNICAL ESEARCH
... by bandwidth constrained wireless links, multiple hops and highly dynamic topologies. Providing QoS support in MANETs is hence a challenging task. This paper presents the design, implementation and evaluation of INORA, which is a network layer QoS support mechanism that makes use of the INSIGNIA in- ...
... by bandwidth constrained wireless links, multiple hops and highly dynamic topologies. Providing QoS support in MANETs is hence a challenging task. This paper presents the design, implementation and evaluation of INORA, which is a network layer QoS support mechanism that makes use of the INSIGNIA in- ...
module10-rip
... • For example, in the first step, A did not realize that its route (with cost 2) to C went through node B ...
... • For example, in the first step, A did not realize that its route (with cost 2) to C went through node B ...
IMC conference
... Select a basis set of k paths that fully describe O(n2) paths (k «O(n2)) • Monitor the loss rates of k paths, and infer the loss rates of all other paths • Applicable for any additive metrics, like latency ...
... Select a basis set of k paths that fully describe O(n2) paths (k «O(n2)) • Monitor the loss rates of k paths, and infer the loss rates of all other paths • Applicable for any additive metrics, like latency ...
pptx - University of Cambridge Computer Laboratory
... • When packet arrives.. – Must decide which outgoing port to use – In single transmission time – Forwarding decisions must be simple ...
... • When packet arrives.. – Must decide which outgoing port to use – In single transmission time – Forwarding decisions must be simple ...
Banana Tree Protocol, an End-host Multicast Protocol
... round-trip-time between them. We will also call this distance link cost. We define the distance between two non-adjacent nodes to be the sum of the link costs of the edges in the path through the graph between the nodes. Latency matters in interactive applications such as video conferencing and netw ...
... round-trip-time between them. We will also call this distance link cost. We define the distance between two non-adjacent nodes to be the sum of the link costs of the edges in the path through the graph between the nodes. Latency matters in interactive applications such as video conferencing and netw ...
tutorial7
... – If a router wants to join a group after pruning, it sends join request to its father node at the tree (the next node on the shortest path to S: again symmetry is assumed). – After predefined time exceeding joining to the group is renewed ...
... – If a router wants to join a group after pruning, it sends join request to its father node at the tree (the next node on the shortest path to S: again symmetry is assumed). – After predefined time exceeding joining to the group is renewed ...
Delay- and Disruption-Tolerant Networks (DTNs)
... A DTN is a network of smaller networks. It is an overlay on top of special-purpose networks, including the Internet. DTNs support interoperability of other networks by accommodating long disruptions and delays between and within those networks, and by translating between the communication protocols ...
... A DTN is a network of smaller networks. It is an overlay on top of special-purpose networks, including the Internet. DTNs support interoperability of other networks by accommodating long disruptions and delays between and within those networks, and by translating between the communication protocols ...
Route Optimization in IP Networks Jennifer Rexford
... input data should be used to drive heuristics that limit the search space, in terms of the number of parameters and the range of their values. In the next section, we explore these principles in the context of optimizing routing inside a single AS, based on conventional shortest-path routing protoco ...
... input data should be used to drive heuristics that limit the search space, in terms of the number of parameters and the range of their values. In the next section, we explore these principles in the context of optimizing routing inside a single AS, based on conventional shortest-path routing protoco ...
Managing Routing Disruptions in Internet Service Provider Networks
... need to update their forwarding tables. IGP convergence in a network with hundreds of routers takes several seconds. After IGP convergence, there may be persistent performance problems either because the path C, E, D, A is congested or because it leads to longer propagation delay. Egress-point chang ...
... need to update their forwarding tables. IGP convergence in a network with hundreds of routers takes several seconds. After IGP convergence, there may be persistent performance problems either because the path C, E, D, A is congested or because it leads to longer propagation delay. Egress-point chang ...
Quantification of Anonymity for Mobile Ad Hoc Networks
... network, the nodes simultaneously act as senders, recipients and routers. An adversary model usually distinguishes between external/internal, passive/active and global/local adversaries. An external adversary can only capture the communication between nodes while the internal adversary has access to ...
... network, the nodes simultaneously act as senders, recipients and routers. An adversary model usually distinguishes between external/internal, passive/active and global/local adversaries. An external adversary can only capture the communication between nodes while the internal adversary has access to ...
Optimizing Multiple Distributed Stream Queries Using Hierarchical Network Partitions
... devices like overhead displays to PCs used by gate agents and even large enterprise databases; and responses to client requests which arrive in the form of queries. In such a system multiple continuous queries may be executing simultaneously and hundreds of nodes, distributed across multiple geograp ...
... devices like overhead displays to PCs used by gate agents and even large enterprise databases; and responses to client requests which arrive in the form of queries. In such a system multiple continuous queries may be executing simultaneously and hundreds of nodes, distributed across multiple geograp ...
Tapestry: A Resilient Global-scale Overlay for Service - IC
... that supports deterministic routing of messages to a live node that has responsibility for the destination key. They can also support higher level interfaces such as a distributed hash table (DHT) or a decentralized object location and routing (DOLR) layer [3]. These systems scale well, and guarante ...
... that supports deterministic routing of messages to a live node that has responsibility for the destination key. They can also support higher level interfaces such as a distributed hash table (DHT) or a decentralized object location and routing (DOLR) layer [3]. These systems scale well, and guarante ...
Network Loss Inference with Second Order Statistics
... gravity model, can then be used to reduce the set of possible solutions. Another tomography problem, which we address in this paper, is to compute the loss rates of IP links from endto-end path measurements. This problem, unfortunately, is also under-determined. Different methods to overcome the ide ...
... gravity model, can then be used to reduce the set of possible solutions. Another tomography problem, which we address in this paper, is to compute the loss rates of IP links from endto-end path measurements. This problem, unfortunately, is also under-determined. Different methods to overcome the ide ...
Symbol-level Network Coding for Wireless Mesh Networks
... First, consider Fig. 1, where a source, S, tries to deliver a packet to a destination, D, using the chain of routers R1, R2, and R3. It is possible that when the source broadcasts its packet, R1 and R2 hear the packet correctly, while R3 and D hear the packet with some bit errors. Traditional routin ...
... First, consider Fig. 1, where a source, S, tries to deliver a packet to a destination, D, using the chain of routers R1, R2, and R3. It is possible that when the source broadcasts its packet, R1 and R2 hear the packet correctly, while R3 and D hear the packet with some bit errors. Traditional routin ...
Adaptive Coding and Packet Rates for TCP-Friendly VoIP Flows
... resource distribution among multiple flows and prevent a congestion collapse of the Internet [4]. Congestion control in the Internet is based on TCP or TCP-friendly transport protocols. It is known that the throughput of a TCP-like protocol scales linearly with the packet size [5]. Thus, the optimal ...
... resource distribution among multiple flows and prevent a congestion collapse of the Internet [4]. Congestion control in the Internet is based on TCP or TCP-friendly transport protocols. It is known that the throughput of a TCP-like protocol scales linearly with the packet size [5]. Thus, the optimal ...
A deterministic worst-case message complexity optimal solution for
... However, these spanning trees are potentially expensive to maintain as a high degree cannot be avoided in general (consider, for example, the extreme case of a star graph in which a single node is connected to all other nodes). For the case that the network topology is flexible and potentially allows ...
... However, these spanning trees are potentially expensive to maintain as a high degree cannot be avoided in general (consider, for example, the extreme case of a star graph in which a single node is connected to all other nodes). For the case that the network topology is flexible and potentially allows ...