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This article presents a new flooding routing protocol for wireless sensor networks based on a Location-Aided data dissemination scheme. This protocol uses node's information to select proper routing path in virtual grids, thereby balancing energy consumption to better prolong the life-time of the whole network. Multiple paths from internal nodes to gateway nodes are established as much as possible,...
This paper proposes the Distributional Load-Equalization Routing Protocol (DLER) in wireless Mesh network. The protocol is improved on the basis of the ADOV Protocol in Ad-Hoc and realizes the communication between two wireless clients in different BSS (Basic Service Set) by wireless relaying. The use of exchanging the link loss information between central nodes can realize the dynamical load balance,...
The scour is one of the major causes for bridge failure. Scour failure occurs suddenly without prior warning or sign of distress to the bridge. However, there are many challenges to monitor the processes of hydraulic scour, such as measuring equipments are essentially critical, especially during the floods. This paper presents an in-situ scour monitoring system by using the novel mobile wireless technology...
Pervasive computing is a rapidly developing area of Information and Communications Technology (ICT). It refers to the increasing integration of ICT into people's lives and environments, made possible by the convergence of advanced electronic - and particularly, wireless - technologies and the Internet. Wireless technologies are expected to connect various devices in many potential applications, from...
This design takes the 16-bit ultra-low power MSP430F149 micro controller produced by TI Company as the control core. Using a high-precision single-bus device DS18B20 as the temperature sensor, the keyboard as the temperature input setting, and the temperature value displayed by the 1602 LCD, temperature measurement and controlling are realized within the closed environment. And the nRF401 wireless...
“Push-to-talk over Cellular” (PoC) which is wireless technology and is used on mobile telecom network can enable cell phones capability of one-to-many communications, as the walkie-talkie. PoC is a new potential communication service using cellular network without the defect of walkie-talkie limited communication distance. In this paper, the performance of today's PoC is evaluated,...
Clustering technique is an effective topology control approach which can improve the scalability and lifetime in wireless sensor networks (WSNs). LEACH is a classical clustering algorithm for low energy scheme, however, it still have some deficiencies. This paper studies LEACH protocol, and put an Improved LEACH protocol which has more reasonable set-up phase. In the cluster heads election phase,...
The article developed a path planning method for mobile robots moving to the target position on the unknown environment, and uses the dynamic programming algorithm to solve the minimum displacement techniques. The mobile robot has the shape of cylinder and its diameter, height and weight is 8cm, 15cm and 1.5kg. The controller of the mobile robot is MCS-51 microchip. The mobile robot contains a controller...
Rumor routing is a routing protocol based on query for wireless sensor networks, which selects next hop randomly during establishing path and the path may not be optimal and may be loop. So this paper puts forward a novel rumor routing (NRR), which bases on ant colony optimization and can resolve the loop route that established by rumor routing, and has good convergence, comparing to rumor routing,...
In this paper, based on requirements of wireless Mesh network Multi-service and high speed, Is proposed based on more access control technology and the QoS control technology of new wireless resource allocation methods of the upward, To better solve the uplink bandwidths business concurrently, And both to delay and bandwidth requirements, improving the bandwidth of the system. Finally, simulation...
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