Internet Connectivity for Ad hoc Mobile Networks
... Wireless LANs are becoming a prevalent method for obtaining network connectivity because they have the desirable property of allowing users freedom of mobility. Wireless LANs are infrastructured wireless networks, whereby mobile nodes communicate directly with an access point to the wired network. T ...
... Wireless LANs are becoming a prevalent method for obtaining network connectivity because they have the desirable property of allowing users freedom of mobility. Wireless LANs are infrastructured wireless networks, whereby mobile nodes communicate directly with an access point to the wired network. T ...
Linux+ Guide to Linux Certification
... wired or wireless networks together • Transmit at higher power than WLAN APs • Use directional antennas to focus transmission in single direction • Delay spread: Minimize spread of signal so that it can reach farther distances • Have software enabling selection of clearest transmission channel and a ...
... wired or wireless networks together • Transmit at higher power than WLAN APs • Use directional antennas to focus transmission in single direction • Delay spread: Minimize spread of signal so that it can reach farther distances • Have software enabling selection of clearest transmission channel and a ...
AV specification
... Messaging in HPAV is direct from station to station; however, the CCo monitors the messages. The header of each message contains information about how much data is pending for transmission on the connection; if this amount becomes large on a given connection, the CCo may allocate additional non-pers ...
... Messaging in HPAV is direct from station to station; however, the CCo monitors the messages. The header of each message contains information about how much data is pending for transmission on the connection; if this amount becomes large on a given connection, the CCo may allocate additional non-pers ...
Connecting Devices, By- Prof. Vineeta Shakya
... Used to connect stations adapters in a physical star topology but logically bus Connection to the hub consists of two pairs of twisted pair wire one for transmission and the other for receiving. Hub receives a bit from an adapter and sends it to all the other adapters without implementing any access ...
... Used to connect stations adapters in a physical star topology but logically bus Connection to the hub consists of two pairs of twisted pair wire one for transmission and the other for receiving. Hub receives a bit from an adapter and sends it to all the other adapters without implementing any access ...
Control Message
... May also be sent when packet fragmentation is required in order to forward a packet. May also be generated if IP related services such as FTP or Web services are unavailable. ...
... May also be sent when packet fragmentation is required in order to forward a packet. May also be generated if IP related services such as FTP or Web services are unavailable. ...
Chs6-8min
... deliver datagram to destination D over that network (ENCAPSULATE); else if table contains a route for network prefix N send datagram to next hop specified in table (ENCAPSULATE); else if table contains a default route send datagram to default router specified (ENCAPSULATE); else declare a forwarding ...
... deliver datagram to destination D over that network (ENCAPSULATE); else if table contains a route for network prefix N send datagram to next hop specified in table (ENCAPSULATE); else if table contains a default route send datagram to default router specified (ENCAPSULATE); else declare a forwarding ...
Part 1
... link, router resources (bandwidth, buffers) may be allocated to VC (dedicated resources = predictable ...
... link, router resources (bandwidth, buffers) may be allocated to VC (dedicated resources = predictable ...
High Speed Communication Protocols
... provide end-to-end reliable transmission of data ■ To fulfill this objective, the transport layer protocol performs the following: - Connection Management - Error Control - Flow Control - Synchronization - Transmitting and Receiving ECE 677, High Speed Protocols ...
... provide end-to-end reliable transmission of data ■ To fulfill this objective, the transport layer protocol performs the following: - Connection Management - Error Control - Flow Control - Synchronization - Transmitting and Receiving ECE 677, High Speed Protocols ...
for TCP
... – Measure RTT variation, or |RTT-M|. – Keeps smoothed value of cumulative variation D=alpha*D+(1-alpha)|RTT-M|. – Alpha may or may not be the same as value used to smooth RTT. – Timeout = RTT+4*D. ...
... – Measure RTT variation, or |RTT-M|. – Keeps smoothed value of cumulative variation D=alpha*D+(1-alpha)|RTT-M|. – Alpha may or may not be the same as value used to smooth RTT. – Timeout = RTT+4*D. ...
例外(exception）とは何か
... Motivation for Change from IPv4 to IPv6 - Current version of IPv4 - is more than 30 years old - IPv4 has shown remarkable success !!! - Then why change? Address space - 32 bit address space allows for over a million networks - But...most are Class C and too small for many organizations - 214 = 163 ...
... Motivation for Change from IPv4 to IPv6 - Current version of IPv4 - is more than 30 years old - IPv4 has shown remarkable success !!! - Then why change? Address space - 32 bit address space allows for over a million networks - But...most are Class C and too small for many organizations - 214 = 163 ...
Chapter 3 - PIRUN Server
... segments may be: lost delivered out of order to app connectionless: no handshaking between UDP sender, receiver each UDP segment handled independently of others ...
... segments may be: lost delivered out of order to app connectionless: no handshaking between UDP sender, receiver each UDP segment handled independently of others ...
A Review of 6LoWPAN Routing Protocols
... protocols. A suitable routing protocol only can be chosen based on the application that it involves. 2. 6LoWPAN Overview 6LoWPAN is a simple low cost communication network that allows wireless connectivity in applications with limited power and relaxed throughput requirements as it provides IPv6 net ...
... protocols. A suitable routing protocol only can be chosen based on the application that it involves. 2. 6LoWPAN Overview 6LoWPAN is a simple low cost communication network that allows wireless connectivity in applications with limited power and relaxed throughput requirements as it provides IPv6 net ...
Chapter 9: Circuit Switching and Packet Switching Switching Networks
... • Use digital time division techniques to set up and maintain virtual circuits • Partition low speed bit stream into pieces that share higher speed stream ...
... • Use digital time division techniques to set up and maintain virtual circuits • Partition low speed bit stream into pieces that share higher speed stream ...
Real Time Network Policy Checking using Header Space
... Our paper describes a verification tool called NetPlumber for SDNs and conventional networks. In SDNs, NetPlumber sits in line with the control plane, and observes state changes (e.g. OpenFlow messages) between the control plane and the switches (Figure 1). NetPlumber checks every event, such as inst ...
... Our paper describes a verification tool called NetPlumber for SDNs and conventional networks. In SDNs, NetPlumber sits in line with the control plane, and observes state changes (e.g. OpenFlow messages) between the control plane and the switches (Figure 1). NetPlumber checks every event, such as inst ...
Turbo Codes and their Implementation
... • TCP without any congestion control and without SACK is very inefficient • At p=0.1%, SACKEXP achieves 91% of the goodput of a lossless link, whereas TCP SACK only achieves 65% (at identical efficiencies of 91%) • As the loss rate increases to 20%, SACKEXP achieves goodputs in the order of 700% at ...
... • TCP without any congestion control and without SACK is very inefficient • At p=0.1%, SACKEXP achieves 91% of the goodput of a lossless link, whereas TCP SACK only achieves 65% (at identical efficiencies of 91%) • As the loss rate increases to 20%, SACKEXP achieves goodputs in the order of 700% at ...
CSC 311 - School of Computing Homepage
... Link state routing: • Each node communicates what it knows to its neighbors 1. bit rate 2. delay 3. queue length 4. reliability • a node builds a link state packet for each link • nodes receiving link state packets forward them to neighbors • as these packets are exchanged , nodes learns about the n ...
... Link state routing: • Each node communicates what it knows to its neighbors 1. bit rate 2. delay 3. queue length 4. reliability • a node builds a link state packet for each link • nodes receiving link state packets forward them to neighbors • as these packets are exchanged , nodes learns about the n ...
Network-Assisted Mobile Terminal Support Technology
... appearing one after another, and their enhancements and expansions are expected in the years to come. In short, mobile terminals are becoming capable of diverse applications, and under continuous-connection conditions, they should be able to not only receive services as a client but also to provide ...
... appearing one after another, and their enhancements and expansions are expected in the years to come. In short, mobile terminals are becoming capable of diverse applications, and under continuous-connection conditions, they should be able to not only receive services as a client but also to provide ...