PPT
... In short: a peer-to-peer lookup system Given a key (data item), it maps the key onto a ...
... In short: a peer-to-peer lookup system Given a key (data item), it maps the key onto a ...
Formal description and analysis of a distributed
... In this paper, we define a distributed abstract state machine (DASM) model [14,17] of the network or routing layer protocol for mobile ad hoc networks. In conjunction with the chosen routing strategy, we propose a distributed logical topology based location service (LTLS) protocol and give a formal d ...
... In this paper, we define a distributed abstract state machine (DASM) model [14,17] of the network or routing layer protocol for mobile ad hoc networks. In conjunction with the chosen routing strategy, we propose a distributed logical topology based location service (LTLS) protocol and give a formal d ...
CN26622627
... route during route reconstruction which achieved by detecting the attack at the source node rather than at the destination node. Thus, taking into account the detection at the source node is indispensable. Regarding the detection of blackhole attack at the source node, [2, 3] have proposed methods i ...
... route during route reconstruction which achieved by detecting the attack at the source node rather than at the destination node. Thus, taking into account the detection at the source node is indispensable. Regarding the detection of blackhole attack at the source node, [2, 3] have proposed methods i ...
Module 6
... These LSAs are accumulated on each router and a topological database is constructed The SPF algorithm uses this database to calculate shortest path It then builds a tree, with itself as the root, consisting of all possible paths to each network It sorts these paths Shortest Path First (SPF) Lists th ...
... These LSAs are accumulated on each router and a topological database is constructed The SPF algorithm uses this database to calculate shortest path It then builds a tree, with itself as the root, consisting of all possible paths to each network It sorts these paths Shortest Path First (SPF) Lists th ...
Unreliable Sensor Grids: Coverage, Connectivity and Diameter∗
... the network and develop scaling laws for these quantities. Two important performance metrics for such a network are connectivity and coverage. We say that the network is connected if any active node can communicate with any other active node (possibly using other active nodes are relays). The unit s ...
... the network and develop scaling laws for these quantities. Two important performance metrics for such a network are connectivity and coverage. We say that the network is connected if any active node can communicate with any other active node (possibly using other active nodes are relays). The unit s ...
Green Wave: Latency and Capacity-Efficient Sleep Scheduling for
... II. D ELAY E FFICIENT S LEEP S CHEDULING A. Problem Setup An efficient sleep schedule not only seeks to minimize idle listening, but also to optimize the performance of wireless networks (e.g. latency, capacity) subject to a certain constraint of energy consumption level. This work considers receive ...
... II. D ELAY E FFICIENT S LEEP S CHEDULING A. Problem Setup An efficient sleep schedule not only seeks to minimize idle listening, but also to optimize the performance of wireless networks (e.g. latency, capacity) subject to a certain constraint of energy consumption level. This work considers receive ...
Abstract- The field of Mobile Ad hoc Networks
... required. Such interconnection between mobile computers is called an Ad hoc Network. Ad hoc networks are emerging as the next generation of networks and defined as a collection of mobile nodes forming a temporary (spontaneous) network without the aid of any centralized administration or standard sup ...
... required. Such interconnection between mobile computers is called an Ad hoc Network. Ad hoc networks are emerging as the next generation of networks and defined as a collection of mobile nodes forming a temporary (spontaneous) network without the aid of any centralized administration or standard sup ...
ppt - Computer Science, Columbia University
... vector) to its neighbors. A router updates the distance to a destination from all its neighbors’ distance vectors A router sends its updated distance vector to its neighbors. The process repeats until all routers’ distance vectors do not change (this condition is called convergence). ...
... vector) to its neighbors. A router updates the distance to a destination from all its neighbors’ distance vectors A router sends its updated distance vector to its neighbors. The process repeats until all routers’ distance vectors do not change (this condition is called convergence). ...
F33022028
... perform monitoring tasks, such as in animal or vehicle tracking and in surveillance of enemy forces in military applications. In this project we will be introduce the concept of proximity queries that allow us to report interesting events that are observed by nodes in the network that are within cer ...
... perform monitoring tasks, such as in animal or vehicle tracking and in surveillance of enemy forces in military applications. In this project we will be introduce the concept of proximity queries that allow us to report interesting events that are observed by nodes in the network that are within cer ...
Design - Berkeley Robotics and Intelligent Machines Lab
... admits a natural hierarchy. The lowest-tier of nodes, which are the most numerous and most resource constrained, are responsible for simple detection functions and for providing distilled information to a higher-tier. The higher-tier is capable of doing more substantial processing and initiating act ...
... admits a natural hierarchy. The lowest-tier of nodes, which are the most numerous and most resource constrained, are responsible for simple detection functions and for providing distilled information to a higher-tier. The higher-tier is capable of doing more substantial processing and initiating act ...
Routing
... Shortest Path Routing Algorithms used to determine the shortest path between two nodes according to some cost condition. The shortest path is the path with the least cost (the sum of the cost of the links on the path is minimum over all possible paths between the source and destination) Two m ...
... Shortest Path Routing Algorithms used to determine the shortest path between two nodes according to some cost condition. The shortest path is the path with the least cost (the sum of the cost of the links on the path is minimum over all possible paths between the source and destination) Two m ...
PORTO - Politecnico di Torino
... A preliminary distinction must be done: when using a general P2P application, two different topologies have to be considered: i) a logical topology at application level, made up by peers, which is created and updated whenever a peer joins or leaves the network; and ii) a physical network composed by ...
... A preliminary distinction must be done: when using a general P2P application, two different topologies have to be considered: i) a logical topology at application level, made up by peers, which is created and updated whenever a peer joins or leaves the network; and ii) a physical network composed by ...
Using Loss Pairs to Discover Network Properties
... for predicting delay and jitter for multimedia applications using the path. In some settings it may be relatively easy to estimate the amount of buffering on a link. When packets flow over only a single hop (or in the absence of any cross traffic on a multi-hop path) then one can estimate buffering ...
... for predicting delay and jitter for multimedia applications using the path. In some settings it may be relatively easy to estimate the amount of buffering on a link. When packets flow over only a single hop (or in the absence of any cross traffic on a multi-hop path) then one can estimate buffering ...
Performance Analysis of RIP, EIGRP, and OSPF using
... routing protocols. RIP may be implemented in all types of routing devices. Consequently, it is a better choice in a multibrand, mixed network. 2.2 Enhanced Interior Gateway Routing Protocol (EIGRP) EIGRP is a Cisco proprietary routing protocol. It is based on a new route calculation algorithm called ...
... routing protocols. RIP may be implemented in all types of routing devices. Consequently, it is a better choice in a multibrand, mixed network. 2.2 Enhanced Interior Gateway Routing Protocol (EIGRP) EIGRP is a Cisco proprietary routing protocol. It is based on a new route calculation algorithm called ...
lecture08_part2_noc
... • Distributed routing: each packet carries the destination address – e.g. XY co-ordinates or number identifying destination node/router – routing decisions are made in each router by looking up the destination addresses in a routing table or by executing a hardware function • Source routing: packet ...
... • Distributed routing: each packet carries the destination address – e.g. XY co-ordinates or number identifying destination node/router – routing decisions are made in each router by looking up the destination addresses in a routing table or by executing a hardware function • Source routing: packet ...
Chord
... SHA-1 is used as a base hash function. A node’s identifier is defined by hashing the node’s IP address. A key identifier is produced by hashing the key (chord doesn’t define this. Depends on the application). ...
... SHA-1 is used as a base hash function. A node’s identifier is defined by hashing the node’s IP address. A key identifier is produced by hashing the key (chord doesn’t define this. Depends on the application). ...
A secure routing protocol for ad hoc networks
... 3 Exploits allowed by existing protocols The current proposed routing protocols for ad hoc wireless networks allow for many different types of attacks. Analogous exploits exist in wired networks [20], but are more easily defended against by infrastructure present in a wired network. In this section, ...
... 3 Exploits allowed by existing protocols The current proposed routing protocols for ad hoc wireless networks allow for many different types of attacks. Analogous exploits exist in wired networks [20], but are more easily defended against by infrastructure present in a wired network. In this section, ...