outdoor environment sensing using wireless sensor networks with
... make multi-functional tiny sensor devices, which can be used to observe and to react according to physical phenomena of their surrounding environment [1]. Wireless sensor nodes are low-power devices equipped with processor, storage, a power supply, a transceiver, one or more sensors and, in some cas ...
... make multi-functional tiny sensor devices, which can be used to observe and to react according to physical phenomena of their surrounding environment [1]. Wireless sensor nodes are low-power devices equipped with processor, storage, a power supply, a transceiver, one or more sensors and, in some cas ...
Comparison and Contrast between the OSI and TCP/IP Model
... These 2 layers of the OSI correspond directly to the subnet layer of the TCP/IP model. Majority of the time, TCP/IP model does nothing, it will vary from host to host and network to network Since these two layers deal with functions that are so inherently specific to each individual networking techn ...
... These 2 layers of the OSI correspond directly to the subnet layer of the TCP/IP model. Majority of the time, TCP/IP model does nothing, it will vary from host to host and network to network Since these two layers deal with functions that are so inherently specific to each individual networking techn ...
Slide 1
... Wireless Network Challenges 1) Devices are mobile or wiring is inconvenient, which means the wireless network must rearrange itself dynamically 2) Wireless signals are not protected => subject to mutual interference, especially as devices move, and to eavesdropping 3) Power: both because mobile dev ...
... Wireless Network Challenges 1) Devices are mobile or wiring is inconvenient, which means the wireless network must rearrange itself dynamically 2) Wireless signals are not protected => subject to mutual interference, especially as devices move, and to eavesdropping 3) Power: both because mobile dev ...
Lesson 2-3: Ethernet Basics
... is completed. Early DIX Ethernet did not have a carrier signal. Therefore, a collision was not detected until the destination device received the framed packet. The addition of a jam signal is one example of how Ethernet technology has evolved. Multiple Access means that all devices have equal acces ...
... is completed. Early DIX Ethernet did not have a carrier signal. Therefore, a collision was not detected until the destination device received the framed packet. The addition of a jam signal is one example of how Ethernet technology has evolved. Multiple Access means that all devices have equal acces ...
GTS SAN Usage A UNIX SysAdmin`s View of How A SAN Works
... “RAID 5 performs poorly compared to RAID 0+1 when both are implemented with software RAID” ...
... “RAID 5 performs poorly compared to RAID 0+1 when both are implemented with software RAID” ...
Peer-to-Peer Approaches to Grid Resource Discovery
... • So DHT systems provide good scalability as well as fault tolerance • DHT systems include Pastry, Chord, CAN and Koorde ...
... • So DHT systems provide good scalability as well as fault tolerance • DHT systems include Pastry, Chord, CAN and Koorde ...
The University of Queensland
... In traditional IP routing, all packets between a source and destination follow the same path through the network. This is due to the fact that forwarding decisions at each hop are based on the destination IP address in the packet. In contrast, the matching rules in flow tables of SDN switches are mu ...
... In traditional IP routing, all packets between a source and destination follow the same path through the network. This is due to the fact that forwarding decisions at each hop are based on the destination IP address in the packet. In contrast, the matching rules in flow tables of SDN switches are mu ...
An Energy and Trust-aware Routing Protocol for Large Wireless
... environment. Although significant research effort has been spend on the design of trust models to detect malicious nodes based on direct and indirect evidence, this comes at the cost of additional energy consumption. The situation is further aggravated as the next generation wireless sensor network ...
... environment. Although significant research effort has been spend on the design of trust models to detect malicious nodes based on direct and indirect evidence, this comes at the cost of additional energy consumption. The situation is further aggravated as the next generation wireless sensor network ...
Advances in Natural and Applied Sciences
... different (W. Kumwilaisak, 2003). A revolutionary approach can however be applied to highly specific problems where backwards potential is not important. For example, we take a look at the Wireless Sensor Network (WSN) setting, where this approach can be applied (Shu, 2010). At present, design of ne ...
... different (W. Kumwilaisak, 2003). A revolutionary approach can however be applied to highly specific problems where backwards potential is not important. For example, we take a look at the Wireless Sensor Network (WSN) setting, where this approach can be applied (Shu, 2010). At present, design of ne ...
Virtual Slice Management and Resource
... Setting: 124 nodes, 510 links, 4-node transit domain, each transit node attached by three 10-node stub domain. VNA schemes performs better than least-load scheme: the lowest stress may be scattered in different domains, least-load algorithm will select them for a single VNR, leading to highly loaded ...
... Setting: 124 nodes, 510 links, 4-node transit domain, each transit node attached by three 10-node stub domain. VNA schemes performs better than least-load scheme: the lowest stress may be scattered in different domains, least-load algorithm will select them for a single VNR, leading to highly loaded ...
www.ijecs.in International Journal Of Engineering And Computer Science ISSN:2319-7242
... accidents, here we are using Alcohol sensor which detects caused by driver distractions we are implementing this the alcohol based on the human breath. In such case if the project using different sensors. Increasing stress levels in driver has consumed alcohol the vehicle won’t start at all. drivers ...
... accidents, here we are using Alcohol sensor which detects caused by driver distractions we are implementing this the alcohol based on the human breath. In such case if the project using different sensors. Increasing stress levels in driver has consumed alcohol the vehicle won’t start at all. drivers ...
Link Layer - dbmanagement.info
... seldom used on low bit-error link (fiber, some twisted pair) wireless links: high error rates • Q: why both link-level and end-end reliability? 5: DataLink Layer ...
... seldom used on low bit-error link (fiber, some twisted pair) wireless links: high error rates • Q: why both link-level and end-end reliability? 5: DataLink Layer ...
Part I: Introduction
... encapsulate datagram into frame, adding header, trailer implement channel access if shared medium, ‘physical addresses’ used in frame headers to identify source, dest • different from IP address! ...
... encapsulate datagram into frame, adding header, trailer implement channel access if shared medium, ‘physical addresses’ used in frame headers to identify source, dest • different from IP address! ...
Slide 1
... (CIDR addressing, 2n-2 subnets (for subnets, always subtract the 2 addresses consisting of all 1s (broadcast) and all 0s (current environment); 24 = 16; 16–2 = 14). ...
... (CIDR addressing, 2n-2 subnets (for subnets, always subtract the 2 addresses consisting of all 1s (broadcast) and all 0s (current environment); 24 = 16; 16–2 = 14). ...
Presentation
... Beacon (via Chord) 3. Beacon forwards verified packet to secret servlet 4. Secret Servlet forwards verified packet to target ...
... Beacon (via Chord) 3. Beacon forwards verified packet to secret servlet 4. Secret Servlet forwards verified packet to target ...
E43032231
... to preserve network performance. By using channel and radio diversities in Wireless networks, ARS generates necessary changes in local radio and channel assignments in order to recover from failures. Next, based on the thus-generated configuration changes, the system cooperatively reconfigures netwo ...
... to preserve network performance. By using channel and radio diversities in Wireless networks, ARS generates necessary changes in local radio and channel assignments in order to recover from failures. Next, based on the thus-generated configuration changes, the system cooperatively reconfigures netwo ...
Chapter 5
... • Model’s foundation: networking can be separated into a series of related tasks – Each task can be conceptualized as a single aspect, or layer, of the communication process • Reduces complexity of networked communications into series of interconnected tasks and activities • “Divide and conquer” app ...
... • Model’s foundation: networking can be separated into a series of related tasks – Each task can be conceptualized as a single aspect, or layer, of the communication process • Reduces complexity of networked communications into series of interconnected tasks and activities • “Divide and conquer” app ...
Lecture 1
... Application Software • You programs need to have an API to deal with the network – Find other computer to send/receive data to – Invoke the routines provides by the OS to use the network – Determine the way in which data will be exchanged • Characters • Binary code ...
... Application Software • You programs need to have an API to deal with the network – Find other computer to send/receive data to – Invoke the routines provides by the OS to use the network – Determine the way in which data will be exchanged • Characters • Binary code ...
Document
... A source or destination needs to have a global address which is unique address over the global space. However, Global addressing in virtual circuit networks is used only to create a virtual circuit identifier. ...
... A source or destination needs to have a global address which is unique address over the global space. However, Global addressing in virtual circuit networks is used only to create a virtual circuit identifier. ...
ZigBee, ZDO, and ZDP
... A tool may want to collect the IEEE (aka MAC) address of every node in the network (using IEEE_addr_req , for example) so all nodes in the network must support the server side ( IEEE_addr_rsp ). Use requestType 0x00 to get only the IEEE and NWK address for one node. Use the extended requestType 0x01 ...
... A tool may want to collect the IEEE (aka MAC) address of every node in the network (using IEEE_addr_req , for example) so all nodes in the network must support the server side ( IEEE_addr_rsp ). Use requestType 0x00 to get only the IEEE and NWK address for one node. Use the extended requestType 0x01 ...