Wireless Networks
... 802.11: CSMA - sense before transmitting don’t collide with ongoing transmission by other node 802.11: no collision detection! difficult to receive (sense collisions) when transmitting due to weak received signals (fading) can’t sense all collisions in any case: hidden terminal, fading g ...
... 802.11: CSMA - sense before transmitting don’t collide with ongoing transmission by other node 802.11: no collision detection! difficult to receive (sense collisions) when transmitting due to weak received signals (fading) can’t sense all collisions in any case: hidden terminal, fading g ...
Lecture 4 - Lyle School of Engineering
... Waits for free channel, retransmits buffered frames onto B using its MAC protocol Does same thing from LAN B to LAN A ...
... Waits for free channel, retransmits buffered frames onto B using its MAC protocol Does same thing from LAN B to LAN A ...
Waspmote 802.15.4
... With a view to obtain frames totally compatible with the IEEE802.15.4 standard and enabling inter-operability with other chipsets, the xbee802.setMacMode(m) command has been created to select at any time if the modules are to use a totally compatible heading format, or conversely enable the use of e ...
... With a view to obtain frames totally compatible with the IEEE802.15.4 standard and enabling inter-operability with other chipsets, the xbee802.setMacMode(m) command has been created to select at any time if the modules are to use a totally compatible heading format, or conversely enable the use of e ...
NUST_BSIT8_DC_Lecture_6_part_2
... Makes the object corresponding to GUID inaccessible. sendToObj(msg, GUID, [n]) Following the object-oriented paradigm, an invocation message is sent to an object in order to access it. This might be a request to open a TCP connection for data transfer or to return a message containing all or part of ...
... Makes the object corresponding to GUID inaccessible. sendToObj(msg, GUID, [n]) Following the object-oriented paradigm, an invocation message is sent to an object in order to access it. This might be a request to open a TCP connection for data transfer or to return a message containing all or part of ...
No Slide Title - comp
... 4.1 Internet architecture • Layers: – Data-link layer provides framing and address resolution services. – Network layer provides connectivity service. – Transport layer provides reliability or unreliable service, and flow control service. – Application layer provides application-specific services. ...
... 4.1 Internet architecture • Layers: – Data-link layer provides framing and address resolution services. – Network layer provides connectivity service. – Transport layer provides reliability or unreliable service, and flow control service. – Application layer provides application-specific services. ...
pptx - Department of Computer Science and Engineering, CUHK
... EDP reduces the file read latency of baseline by 37.41% in the test-bed experiments In heterogeneous network, CEDP outperforms both EDP and baseline EDP lags as the number of files gets large, and we will improve this in the future ...
... EDP reduces the file read latency of baseline by 37.41% in the test-bed experiments In heterogeneous network, CEDP outperforms both EDP and baseline EDP lags as the number of files gets large, and we will improve this in the future ...
Securing VoIP and PSTN from Integrated Signaling
... has opened up market SS7 design and development carried out in different environment from the presently existing one. Convergence of voice and data networks ...
... has opened up market SS7 design and development carried out in different environment from the presently existing one. Convergence of voice and data networks ...
Lecture 12 – MAC - UTK-EECS
... -i : listen to a specific interface, e.g., eth0 -w: write the raw packet to a file rather than print them out, -r can be used to read packet from a file -s num: get num bytes of data from each packet rather than the default value of 68 src host xyz: true if IP destination field of the packet is xyz ...
... -i : listen to a specific interface, e.g., eth0 -w: write the raw packet to a file rather than print them out, -r can be used to read packet from a file -s num: get num bytes of data from each packet rather than the default value of 68 src host xyz: true if IP destination field of the packet is xyz ...
single physical link
... in this case, the switch is forced to buffer these packets in its memory should a switch receive packets faster than it can send them for an extended period of time, then the switch will eventually run out of buffer space, and some packets will have to be dropped ...
... in this case, the switch is forced to buffer these packets in its memory should a switch receive packets faster than it can send them for an extended period of time, then the switch will eventually run out of buffer space, and some packets will have to be dropped ...
Autonomic Wireless Sensor Networks: Intelligent Ubiquitous
... Other devices can join in the same way A networking protocol (e.g. ZigBee) on top of IEEE 802.15.4 is required to allow communication between nodes that are not in range of each other by routing of packets via intermediate nodes (multi hop). ...
... Other devices can join in the same way A networking protocol (e.g. ZigBee) on top of IEEE 802.15.4 is required to allow communication between nodes that are not in range of each other by routing of packets via intermediate nodes (multi hop). ...
Chapter 11 ATM - National Chi Nan University
... • Similarities between ATM and packet switching —Transfer of data in discrete chunks —Multiple logical connections over single physical interface ...
... • Similarities between ATM and packet switching —Transfer of data in discrete chunks —Multiple logical connections over single physical interface ...
3-4-1_QoS Intro adap..
... than RTP when load is high • RTP adaptation works better than direct PP (Packet Pair) method • Network Feedback is best ...
... than RTP when load is high • RTP adaptation works better than direct PP (Packet Pair) method • Network Feedback is best ...
Lecture 3 Slides
... latest source tree transmitted to its neighbors. • If one of the conditions is satisfied, the complete source tree is to be transmitted. (sudden thought – what is meant by broadcast in this environment ?) • If the neighbors remain the same as in the previous source tree it is sufficient only to broa ...
... latest source tree transmitted to its neighbors. • If one of the conditions is satisfied, the complete source tree is to be transmitted. (sudden thought – what is meant by broadcast in this environment ?) • If the neighbors remain the same as in the previous source tree it is sufficient only to broa ...
Secure Routing in Wireless Sensor Networks
... •Geographic routing is secure against worm hole, sink hole, and Sybil attacks, but the remaining problem is that the location advertisement must be trusted. •Probabilistic selection of next hop from several advertisement can reduce the problem •Restricting the structure of the topology can eliminate ...
... •Geographic routing is secure against worm hole, sink hole, and Sybil attacks, but the remaining problem is that the location advertisement must be trusted. •Probabilistic selection of next hop from several advertisement can reduce the problem •Restricting the structure of the topology can eliminate ...
EZtouch GigE+
... Comprehensive Statistics/Filtering Let the EZtouch GigE+ provide you with all the traffic statistics so that you know what is really running over that network. You will know the bandwidth utilization, frame sizes, protocols, number of CRC errors, and much more. And, best of all you can easily filter ...
... Comprehensive Statistics/Filtering Let the EZtouch GigE+ provide you with all the traffic statistics so that you know what is really running over that network. You will know the bandwidth utilization, frame sizes, protocols, number of CRC errors, and much more. And, best of all you can easily filter ...
Chapter 1 Data Networks and the Internet
... • Preplanned route established before any packets sent — all packets follow the same route — there is a connection establishment (like circuit switching) — but that connection is not a dedicated one (unlike circuit switching) ...
... • Preplanned route established before any packets sent — all packets follow the same route — there is a connection establishment (like circuit switching) — but that connection is not a dedicated one (unlike circuit switching) ...
Network Models
... Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. ...
... Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. ...
PPT
... Many of same problems as Voice over IP Designed for data One Priority Quality is worse than Telephone System Quality is better than Internet Voice CIR guarantees Bandwidth FRAD can prioritize voice Video over FR products now available ...
... Many of same problems as Voice over IP Designed for data One Priority Quality is worse than Telephone System Quality is better than Internet Voice CIR guarantees Bandwidth FRAD can prioritize voice Video over FR products now available ...
High Speed 1760 and FC-AE-1553
... operate over a fabric network, rather than a multi-drop bus like MIL-STD-1553, it is possible to have multiple active NCs operating over the same network simultaneously. For example, this could enable one weapon attached to an AS5653 network to transmit a video stream to a stores management computer ...
... operate over a fabric network, rather than a multi-drop bus like MIL-STD-1553, it is possible to have multiple active NCs operating over the same network simultaneously. For example, this could enable one weapon attached to an AS5653 network to transmit a video stream to a stores management computer ...
Information Networks
... “P2P is a class of applications that take advantage of resources – storage, cycles, content, human presence – available at the edges of the Internet. Because accessing these decentralized resources means operating in an environment of unstable and unpredictable IP addresses P2P nodes must operate ...
... “P2P is a class of applications that take advantage of resources – storage, cycles, content, human presence – available at the edges of the Internet. Because accessing these decentralized resources means operating in an environment of unstable and unpredictable IP addresses P2P nodes must operate ...