Standardization areas for securing Ad hoc networks
... Data security based on multipath routing: The protocol exploits the characteristic of existence of multiple paths between nodes in an Ad hoc network to increase the confidentiality. Since the initial message is divided into multiple parts, an attacker if succeeds to have one or lots of transmitted p ...
... Data security based on multipath routing: The protocol exploits the characteristic of existence of multiple paths between nodes in an Ad hoc network to increase the confidentiality. Since the initial message is divided into multiple parts, an attacker if succeeds to have one or lots of transmitted p ...
Data Link Layer
... – Seldom used on low bit-error link (fiber, some twisted pair) – Used for wireless links with high error rates ...
... – Seldom used on low bit-error link (fiber, some twisted pair) – Used for wireless links with high error rates ...
Network Protocols
... devices in an IP network •No two computers on the Internet can have the same IP address ...
... devices in an IP network •No two computers on the Internet can have the same IP address ...
p2p_3
... Performance is O(log N) with high probability Each node can forward a query at least halfway along the remaining distance => less than m steps to find node After 2log N steps, the distance is max 2^m/2^(2log N) = 2^m/N^2 - and the probability for two nodes to be in such an interval is 1/N, i.e., neg ...
... Performance is O(log N) with high probability Each node can forward a query at least halfway along the remaining distance => less than m steps to find node After 2log N steps, the distance is max 2^m/2^(2log N) = 2^m/N^2 - and the probability for two nodes to be in such an interval is 1/N, i.e., neg ...
OSI Model
... • The top layer of the OSI model • Provides a set of interfaces for sending and receiving applications to gain access to and use network services, such as: networked file transfer, message handling and database query processing ...
... • The top layer of the OSI model • Provides a set of interfaces for sending and receiving applications to gain access to and use network services, such as: networked file transfer, message handling and database query processing ...
Computer Networking
... – a protocol that defines the fields in the IP datagrams as well as how the end systems and routers act on these field : IP protocol – routing protocols that determine the routes that datagrams take between sources and destinations : many routing protocols : RIP, ...
... – a protocol that defines the fields in the IP datagrams as well as how the end systems and routers act on these field : IP protocol – routing protocols that determine the routes that datagrams take between sources and destinations : many routing protocols : RIP, ...
Z-Wave Protocol Overview
... up all the time. This controller has the advantage that Routing slaves can report unsolicited status messages to it, and it also has the advantage of always knowing where it is located in the network. A static controller will typically be a secondary controller in a Z-Wave network. ...
... up all the time. This controller has the advantage that Routing slaves can report unsolicited status messages to it, and it also has the advantage of always knowing where it is located in the network. A static controller will typically be a secondary controller in a Z-Wave network. ...
Slides: Monitoring.
... use of sentinel nodes, which periodically exchange messages with adjacent nodes (for instance, a reciprocal status request every k rounds), and then report some kind of information to the network administrator. Which type of message is exchanged among nodes in the network? And which type of message ...
... use of sentinel nodes, which periodically exchange messages with adjacent nodes (for instance, a reciprocal status request every k rounds), and then report some kind of information to the network administrator. Which type of message is exchanged among nodes in the network? And which type of message ...
Network Perspective of Resilience in Social-Ecological
... • High level of centrality – Well-connected (high ranking) nodes or Hubs with higher than average number of links and/or links that span larger than average distances (inter-cluster links, for example) ...
... • High level of centrality – Well-connected (high ranking) nodes or Hubs with higher than average number of links and/or links that span larger than average distances (inter-cluster links, for example) ...
Study of Secure Reactive Routing Protocols in Mobile Ad Hoc
... Used to protect the integrity of the nonmutable data in RREQ and RREP messages Sign everything but the Hop Count (mutable) of the AODV message and the Hash from the SAODV extension When a node receives a routing message, it will verify the signature before any other ...
... Used to protect the integrity of the nonmutable data in RREQ and RREP messages Sign everything but the Hop Count (mutable) of the AODV message and the Hash from the SAODV extension When a node receives a routing message, it will verify the signature before any other ...
b) simplex channels.
... networks, where a packet of data may be passed through many different networks and communication channels before it reaches its destination. Sol: 4) Packets offer an alternative to dedicating a channel for the entire length of a message. This increases utilization and availability of a channel by al ...
... networks, where a packet of data may be passed through many different networks and communication channels before it reaches its destination. Sol: 4) Packets offer an alternative to dedicating a channel for the entire length of a message. This increases utilization and availability of a channel by al ...
Serial Communications
... Serial Communications describes a general way in which two devices can send or receive data from one another To send or receive data, bits have to be moved around The term Serial indicates that the data bits are transmitted sequentially, one bit at a time Conversely, in parallel communication, mult ...
... Serial Communications describes a general way in which two devices can send or receive data from one another To send or receive data, bits have to be moved around The term Serial indicates that the data bits are transmitted sequentially, one bit at a time Conversely, in parallel communication, mult ...
Chapter 15 Local Area Network Overview
... Internetworking Terms (3) • Bridge —IS used to connect two LANs using similar LAN protocols —Address filter passing on packets to the required network only —OSI layer 2 (Data Link) ...
... Internetworking Terms (3) • Bridge —IS used to connect two LANs using similar LAN protocols —Address filter passing on packets to the required network only —OSI layer 2 (Data Link) ...
Radio-Triggered Wake-Up Capability for Sensor
... – Each (non-awake) node has a sleep/wakeup duty cycle based on local timer • Listen for stay awake message – Most current systems use this technique – Application dependent, often complicated, wastes energy • E.g., correct duty cycle depends on speed of targets, sensing ranges, types of sensors, … • ...
... – Each (non-awake) node has a sleep/wakeup duty cycle based on local timer • Listen for stay awake message – Most current systems use this technique – Application dependent, often complicated, wastes energy • E.g., correct duty cycle depends on speed of targets, sensing ranges, types of sensors, … • ...