PPT - Winlab
... Distributed ad-hoc mode of 802.11 MAC based on RTS(request-to-send) / CTS (clear-to-send) : MACA proposal (Karn) Neighborhoods of both sender and recvr blocked out ...
... Distributed ad-hoc mode of 802.11 MAC based on RTS(request-to-send) / CTS (clear-to-send) : MACA proposal (Karn) Neighborhoods of both sender and recvr blocked out ...
A Study of Mobile IP - Witchita State University
... Next Generation Mobility – Mobile IPv6 Conclusion ...
... Next Generation Mobility – Mobile IPv6 Conclusion ...
DTN Communication in a Mine
... nodes: E1 , . . . , En , and k Intermediary nodes: I1 , . . . , Ik . The mining equipment E creates a message from, e.g., a four hours of collected sensor data. The messages are sent opportunistically to control room C through intermediaries I1 , I2 , etc. When a control room C receives a message m ...
... nodes: E1 , . . . , En , and k Intermediary nodes: I1 , . . . , Ik . The mining equipment E creates a message from, e.g., a four hours of collected sensor data. The messages are sent opportunistically to control room C through intermediaries I1 , I2 , etc. When a control room C receives a message m ...
Compensation of Asymmetrical Latency for Ethernet Clock
... backhaul network with many different kinds of physical links, such as optical fibres and copper-based connections. Accurate synchronization is a major key in telecommunication networks to ensure the quality of the network for the subscribers. As the constraints in terms of accuracy are getting even ...
... backhaul network with many different kinds of physical links, such as optical fibres and copper-based connections. Accurate synchronization is a major key in telecommunication networks to ensure the quality of the network for the subscribers. As the constraints in terms of accuracy are getting even ...
Low-Cost Driver Assistance Using ZigBee®/IEEE® 802.15.4
... Integrating all of these technologies into a single system is normally a costly and complex solution. We propose a complete ZigBee® based driver assistance system solution that leverages the cost-effective, low-power and secure wireless networking features of the ZigBee protocol. The solution seeks ...
... Integrating all of these technologies into a single system is normally a costly and complex solution. We propose a complete ZigBee® based driver assistance system solution that leverages the cost-effective, low-power and secure wireless networking features of the ZigBee protocol. The solution seeks ...
u α
... A navigational system to investigate the community connections and relations Displaying researcher statistics from academic ...
... A navigational system to investigate the community connections and relations Displaying researcher statistics from academic ...
Pascal Thubert Thomas Watteyne
... • Choice 2, the ID is allocated to IETF via IANA. There is a defined process to obtain a Payload Group ID (http://www.ieee802.org/15/ANA.html), it basically starts with a formal request from an IANA officer. The issue I have with this choice is that we have only 8 addresses left before going onto ex ...
... • Choice 2, the ID is allocated to IETF via IANA. There is a defined process to obtain a Payload Group ID (http://www.ieee802.org/15/ANA.html), it basically starts with a formal request from an IANA officer. The issue I have with this choice is that we have only 8 addresses left before going onto ex ...
Mobile IP
... Stateless Address Autoconfiguration and Neighbor Discovery in IPv6. • Foreign agents are not required. • IPv6-within-IPv6 tunneling is also specified. – Route optimization • Packets delivery without assistance from the home agent – Security • Strong authentication and encryption feature – Cost of pe ...
... Stateless Address Autoconfiguration and Neighbor Discovery in IPv6. • Foreign agents are not required. • IPv6-within-IPv6 tunneling is also specified. – Route optimization • Packets delivery without assistance from the home agent – Security • Strong authentication and encryption feature – Cost of pe ...
Operating Systems
... » 2Mbps uses Quadrature Phase Shift Keying modulation (QPSK) - four rotations : 0, 90, 180 and 270 degrees ...
... » 2Mbps uses Quadrature Phase Shift Keying modulation (QPSK) - four rotations : 0, 90, 180 and 270 degrees ...
980617
... The H.261 standard, commonly called px64, is optimised to achieve very high compression ratio for full-color, real-time motion video transmission. The px64 (p=1, 2,..., 30) compression algorithm combines: intraframe coding ___ DCT-based intraframe compression, interframe coding ___the predictive int ...
... The H.261 standard, commonly called px64, is optimised to achieve very high compression ratio for full-color, real-time motion video transmission. The px64 (p=1, 2,..., 30) compression algorithm combines: intraframe coding ___ DCT-based intraframe compression, interframe coding ___the predictive int ...
102803
... – outgoing datagrams: replace (source IP address, port #) of every outgoing datagram to (NAT IP address, new port #) • . . . remote clients/servers will respond using (NAT IP address, new port #) as destination addr. ...
... – outgoing datagrams: replace (source IP address, port #) of every outgoing datagram to (NAT IP address, new port #) • . . . remote clients/servers will respond using (NAT IP address, new port #) as destination addr. ...
Marks for each part of each question are
... be received correctly so that we can correctly recover the bit. Clearly this scheme is using 8 times the capacity, hence the bandwidth, of a conventional modulation scheme. By varying the chipping ratio we can spread the signal over an arbitrary bandwidth. b) i) The sequence 1010 1110 0011 0111 1111 ...
... be received correctly so that we can correctly recover the bit. Clearly this scheme is using 8 times the capacity, hence the bandwidth, of a conventional modulation scheme. By varying the chipping ratio we can spread the signal over an arbitrary bandwidth. b) i) The sequence 1010 1110 0011 0111 1111 ...
Slides
... A layered networking model standardized by ISO The model identifies various layers and their functionalities Functionality ...
... A layered networking model standardized by ISO The model identifies various layers and their functionalities Functionality ...
Rr.destination
... A layered networking model standardized by ISO The model identifies various layers and their functionalities Functionality ...
... A layered networking model standardized by ISO The model identifies various layers and their functionalities Functionality ...
network Access Layer
... Many different virtual paths can reside on a physical link (like a highway system) Example: ATM and Frame Relay Protocols ...
... Many different virtual paths can reside on a physical link (like a highway system) Example: ATM and Frame Relay Protocols ...
Collision domains vs. broadcast domains.
... Ethernet networks use a technology called Carrier Sense Multiple Access With Collision Detection (CSMA/CD) when transmitting data. All Ethernet devices have equal access to the network media and are capable of transmitting data at any time. This can lead to data collisions. With CSMA/CD, a device li ...
... Ethernet networks use a technology called Carrier Sense Multiple Access With Collision Detection (CSMA/CD) when transmitting data. All Ethernet devices have equal access to the network media and are capable of transmitting data at any time. This can lead to data collisions. With CSMA/CD, a device li ...
Dead Reckoning in Mobile Ad Hoc Networks
... speed (uniformly distributed between 0-20 m/sec). Once the destination is reached, another random destination is targeted after a pause. The pause time is varied that affects the relative speed of the mobile nodes. Note also that a lower pause time indicates higher mobility. In this mobility model, ...
... speed (uniformly distributed between 0-20 m/sec). Once the destination is reached, another random destination is targeted after a pause. The pause time is varied that affects the relative speed of the mobile nodes. Note also that a lower pause time indicates higher mobility. In this mobility model, ...
Lectures 26&27 - Electrical and Computer Engineering
... infrastructure to employ “open” interfaces at appropriate points, so that portions of it can be provided by different suppliers; and so that we can accommodate multiple types of physical layer transmission media: wires, coaxial cable, fiber, wireless • We would like our local communication infrastru ...
... infrastructure to employ “open” interfaces at appropriate points, so that portions of it can be provided by different suppliers; and so that we can accommodate multiple types of physical layer transmission media: wires, coaxial cable, fiber, wireless • We would like our local communication infrastru ...
Simulation study of blackhole attack in the mobile Ad hoc networks
... Destination Sequence number is the sequence number of the last sent packet from the destination to the source. If the destination sequence number present in the routing table is lesser than or equal to the one contained in the RREQ packet, then the node relays the request further to its neighbors. I ...
... Destination Sequence number is the sequence number of the last sent packet from the destination to the source. If the destination sequence number present in the routing table is lesser than or equal to the one contained in the RREQ packet, then the node relays the request further to its neighbors. I ...
