Lecture 2
... • Carrier Sense Multiple Access protocol with collision avoidance (CSMA/CA) • Physical layer monitors the energy level on the radio frequency to determine whether another station is transmitting and provides this carrier-sensing information to the MAC protocol If channel is sensed idle for DIFS, a ...
... • Carrier Sense Multiple Access protocol with collision avoidance (CSMA/CA) • Physical layer monitors the energy level on the radio frequency to determine whether another station is transmitting and provides this carrier-sensing information to the MAC protocol If channel is sensed idle for DIFS, a ...
Network Devices
... Network traffic that is directed to all computers on the network can be segmented to transmit only on a ...
... Network traffic that is directed to all computers on the network can be segmented to transmit only on a ...
1-ITN-chap-3g
... The purpose of the data link address is to deliver the data link frame from one network interface to another network interface on the same network. IP packet encapsulated in a data link frame so it can be transmitted over the physical medium, the actual network. Ethernet LANs and wireless LANs ...
... The purpose of the data link address is to deliver the data link frame from one network interface to another network interface on the same network. IP packet encapsulated in a data link frame so it can be transmitted over the physical medium, the actual network. Ethernet LANs and wireless LANs ...
Part I: Introduction - University of Pittsburgh
... Interference from other sources (phone, microwave) SNR (Signal-to-Noise ratio) The larger, the better BER (Bit error rate) CDMA ...
... Interference from other sources (phone, microwave) SNR (Signal-to-Noise ratio) The larger, the better BER (Bit error rate) CDMA ...
Introduction to Artificial Intelligence
... • Number of parameters needed is linear in fanin rather than exponential. ...
... • Number of parameters needed is linear in fanin rather than exponential. ...
EL736 Communications Networks II: Design and Algorithms
... connect N areas through M possible locations one access link per location maximal connection per location maximum number of ports ...
... connect N areas through M possible locations one access link per location maximal connection per location maximum number of ports ...
A Probabilistic Misbehavior Detection Scheme towards
... node will submit its collected Ni’s forwarding history to TA via two possible approaches. In some hybrid DTN network environment, the transmission between TA and each node could be also performed in a direct transmission manner (e.g., WIMAX or cellular networks). We argue that since the misbehavior ...
... node will submit its collected Ni’s forwarding history to TA via two possible approaches. In some hybrid DTN network environment, the transmission between TA and each node could be also performed in a direct transmission manner (e.g., WIMAX or cellular networks). We argue that since the misbehavior ...
CAN FD - Bosch Semiconductors and Sensors
... supports distributed realtime control with a very high level of security. Its domain of application ranges from high speed networks to low cost multiplex wiring. In automotive electronics, engine control units, sensors, anti-skid-systems, etc. are connected using CAN with bitrates up to 1 Mbit/s. At ...
... supports distributed realtime control with a very high level of security. Its domain of application ranges from high speed networks to low cost multiplex wiring. In automotive electronics, engine control units, sensors, anti-skid-systems, etc. are connected using CAN with bitrates up to 1 Mbit/s. At ...
Chapter 1 Data Communications and Networks Overview
... • Process at A hands down message to TCP to send to port 2 • TCP hands down to IP to send to host B • IP hands down to network layer (e.g. Ethernet) to send to router J • Generates a set of encapsulated PDUs ...
... • Process at A hands down message to TCP to send to port 2 • TCP hands down to IP to send to host B • IP hands down to network layer (e.g. Ethernet) to send to router J • Generates a set of encapsulated PDUs ...
Chapter 1 Data Communications and Networks Overview
... • Process at A hands down message to TCP to send to port 2 • TCP hands down to IP to send to host B • IP hands down to network layer (e.g. Ethernet) to send to router J • Generates a set of encapsulated PDUs ...
... • Process at A hands down message to TCP to send to port 2 • TCP hands down to IP to send to host B • IP hands down to network layer (e.g. Ethernet) to send to router J • Generates a set of encapsulated PDUs ...
Chapter 6 slides, Computer Networking, 3rd edition
... creates frame transmitting, aborts and sends jam signal (48 bits) 2. If adapter senses channel idle, it starts to transmit 5. After aborting, adapter frame. If it senses enters exponential channel busy, waits until backoff: after the mth channel idle and then collision, adapter chooses transmits a K ...
... creates frame transmitting, aborts and sends jam signal (48 bits) 2. If adapter senses channel idle, it starts to transmit 5. After aborting, adapter frame. If it senses enters exponential channel busy, waits until backoff: after the mth channel idle and then collision, adapter chooses transmits a K ...
Week_6
... • Problem: When trying to forward a message on path “s-a-u-c-t ” node u recognizes that node c is not a neighbor anymore. • Idea: Instead of not delivering the message and sending a NAK to s, node u could try to search for t itself; maybe even by flooding. • Some algorithms hope that node t is still ...
... • Problem: When trying to forward a message on path “s-a-u-c-t ” node u recognizes that node c is not a neighbor anymore. • Idea: Instead of not delivering the message and sending a NAK to s, node u could try to search for t itself; maybe even by flooding. • Some algorithms hope that node t is still ...
NETWORK TOPOLOGIES
... The drawback to this type of topology is that a single malfunctioning workstation can disable the whole network To make sure all the information is sent the receiving PC sends the token back to the sending PC after it has received all the data If the sending PC is finished sending it passes th ...
... The drawback to this type of topology is that a single malfunctioning workstation can disable the whole network To make sure all the information is sent the receiving PC sends the token back to the sending PC after it has received all the data If the sending PC is finished sending it passes th ...
ppt - The Fengs
... receiver? • guaranteed bandwidth? • preservation of inter-packet timing (no jitter)? • loss-free delivery? • in-order delivery? • congestion feedback to sender? ...
... receiver? • guaranteed bandwidth? • preservation of inter-packet timing (no jitter)? • loss-free delivery? • in-order delivery? • congestion feedback to sender? ...
Nodes` Credit based Directed Diffusion for wireless sensor
... arises when intermediate nodes fail to forward incoming packets. Sensor nodes have many failure modes. Each failure decreases the performance of data gathering procedure. Our approach is designed by considering that nodes maybe not available during the dissemination procedure. Directed Diffusion [1] ...
... arises when intermediate nodes fail to forward incoming packets. Sensor nodes have many failure modes. Each failure decreases the performance of data gathering procedure. Our approach is designed by considering that nodes maybe not available during the dissemination procedure. Directed Diffusion [1] ...
Ad Hoc Network Protocols2
... Military vehicles on a battlefield with no existing infrastructure. A fleet of ships at sea. Emergency workers at an earthquake that destroyed the infrastructure. A gathering of people with notebook computers in an area lacking 802.11. Scientific field networks. ...
... Military vehicles on a battlefield with no existing infrastructure. A fleet of ships at sea. Emergency workers at an earthquake that destroyed the infrastructure. A gathering of people with notebook computers in an area lacking 802.11. Scientific field networks. ...
Systems Area: OS and Networking
... Gnutella nodes form an overlay network - each node has a few “neighbors” in a virtual network - virtual link: node knows other’s IP address - do app-level “networking” on this graph ...
... Gnutella nodes form an overlay network - each node has a few “neighbors” in a virtual network - virtual link: node knows other’s IP address - do app-level “networking” on this graph ...
Juniper Networks Corporate PowerPoint Template
... • vRouter performs bridging (E-VPN) and routing (L3VPN) • vRouter performs networking services like Security Policies, NAT, Multicast, Mirroring, and Load Balancing • No need for Service Nodes or L2/L3 Gateways for Routing, Broadcast/Multicast, NAT • Routes are automatically leaked into the VRF base ...
... • vRouter performs bridging (E-VPN) and routing (L3VPN) • vRouter performs networking services like Security Policies, NAT, Multicast, Mirroring, and Load Balancing • No need for Service Nodes or L2/L3 Gateways for Routing, Broadcast/Multicast, NAT • Routes are automatically leaked into the VRF base ...
ppt - Computer Science Division
... IEEE 802.11: multiple access Collision if 2 or more nodes transmit at same time CSMA makes sense: get all the bandwidth if you’re the only one transmitting shouldn’t cause a collision if you sense another transmission Collision detection doesn’t work: hidden terminal ...
... IEEE 802.11: multiple access Collision if 2 or more nodes transmit at same time CSMA makes sense: get all the bandwidth if you’re the only one transmitting shouldn’t cause a collision if you sense another transmission Collision detection doesn’t work: hidden terminal ...
