greedy perimeter stateless routing for wireless networks

... COMPRESSION FOR WIRELESS NETWORKSHo Anh Tuy H anoi University o f Technology N gu yen V inh An Hanoi Open University A b s tr a ct The demands for transmission of image, video and multimedia over wireless ... compression for image and video over wireless networks This paper also introduces some change of wavelet parameters in order to improve quality of transmission image and video over wireless network ... designed for a specific application an d bit r a t e M P E G-1 was designed for up to 1.5 Mbps, st a n d ad i ze d for compression of moving pict ures a n d audio MPEG-2 was designed for betw

Ngày tải lên: 11/12/2017, 22:25

... used in routing schemes for traditional wired networks Moreover, the routing protocol for WSN needs to be capable of data aggregation, data dissemination, and spe-cial application—and therefore ... spe-cial application—and therefore using the proposed routing protocols for wireless ad hoc networks is also not suitable for WSN [24] Therefore, finding an efficient method of dis-seminating the ... with each DEN caching the Trang 3An energy-aware grid-based routing scheme for wireless sensor networksposition of the upstream DEN for routing As the source re-ports the sensing data to the sink,

Ngày tải lên: 01/11/2022, 08:32

... difference between sensor networks and traditional wireless ad hoc networks For each layer of the protocol stacks, they survey the different issues and technologies for the sensor networks and provide ... every node 3.8 Routing Information Dissemination Block Finally the Routing Information Dissemination Block is initiated to synchronize the pass number and distribute the routing information to ... Efficient Routing protocol with an appropriate authentication scheme for wireless sensor networks (WSN) CENTERA utilizes the more powerful base station (BS) to gather minimal neighbor trust information

Ngày tải lên: 01/11/2022, 09:08

... non-cellular standards like for example Wireless LAN and Bluetooth In-building solutions are increasingly deployed and introduced to mobile networks, as user demands for “everywhere coverage” are ... are widely used for coverage of e.g road and train tunnels, but can also be used for other types of buildings or parts of buildings A repeater has a donor antenna that is used for communicating ... particularly apparent in already deployed 3G mobile networks in urban areas in-In-building solutions in combination with standard and customized wireless applications will offer additional value

Ngày tải lên: 27/01/2014, 15:20

... Trang 2SECURITY FOR WIRELESSAD HOC NETWORKS Farooq Anjum and Petros Mouchtaris Trang 4SECURITY FOR WIRELESSAD HOC NETWORKS Trang 6SECURITY FOR WIRELESSAD HOC NETWORKS Farooq Anjum and ... radio communicationmedium for wireless networks is a big vulnerability that can be exploited to launchseveral attacks against wireless networks In addition, wireless ad hoc networks usuallycannot ... 10viiTrang 114 Secure Routing 69Trang 125.5 Evidence Collection 148Trang 138 Conclusions and Future Research 224Trang 14Wireless networks, whether cellular networks or wireless local area networks (LANs),have

Ngày tải lên: 25/03/2014, 12:07

... Trang 1FED: F UZZY E VENT D ETECTION MODEL FOR WIRELESS SENSOR NETWORKS HadiTabatabaee Malazi1,Kamran Zamanifar1 and Stefan Dulman2 1 Department of ... false.To provide more information on the detected event, the sensed value field can be added to the notification tuple Theproblem with the latter form of notification format is that the fusion ... one of the main challenges for most of the sensor network services and applications.Traditionally, nodes submit the sensed values of interest to the base station for information fusion The centralapproach

Ngày tải lên: 30/03/2014, 16:20

... Trang 1EmErging CommuniCations for WirElEss sEnsor nEtWorks Edited by anna förster and alexander förster Trang 2Emerging Communications for Wireless Sensor NetworksEdited by Anna Förster and ... 10Emerging Communications for Wireless Sensor Networks 2 traffic patterns, and require different sets of application Qualtiy of Services (QoS) Before the emerging of wireless sensor networks, the research ... Low Duty Cycle MAC Protocols in Wireless Sensor Networks 69 M Riduan Ahmad, Eryk Dutkiewicz and Xiaojing Huang A new MAC Approach in Wireless Body Sensor Networks for Health Care 91 Begonya Otal,

Ngày tải lên: 20/06/2014, 06:20

... MAC Protocols for Wireless Sensor Networks: A Survey IEEE Communications Magazine Elabdin, Z., Elshaikh, O., Islam, R., Ismail, A P., & Khalifa, O O (2006) High Altitude Platform for Wireless Communications ... 21-23) A Study of Routing protocols in Wireless Sensor Networks 6th World Congress On Intelligent Control and Automation, Dalian, China 24 Emerging Communications for Wireless Sensor Networks Mohammed, ... Antennas for Cellular Coverage from a High Altitude Platform IEEE Transactions on Wireless Communications, 2, No 3, 484-492 Tozer, T C., & Grace, D (2001) High-Altitude Platforms for Wireless

Ngày tải lên: 20/06/2014, 06:20

... software system families for the ScatterWeb sensor boards For this purpose, a component meta model was developed, which builds a basis for a complete tool chain, from the model platform all the way to ... software system families for the ScatterWeb sensor boards For this purpose, a component meta model was developed, which builds a basis for a complete tool chain, from the model platform all the way to ... developed for the first generation ScatterWeb platform – eGate and ESB sensor nodes – and we wanted to keep the advantage of Scatterfactory also for the second generation ScatterWeb platform - MSB

Ngày tải lên: 20/06/2014, 06:20

... Standard, 2006) for wireless personal area networks (WPANs) equipped with a duty cycle mechanism where the size of active and inactive parts can be adjustable during the PAN formation The IEEE ... Standard, 2006) for wireless personal area networks (WPANs) equipped with a duty cycle mechanism where the size of active and inactive parts can be adjustable during the PAN formation The IEEE ... longest sleep period Channel access is performed through CSMA and DMAC utilises only one frequency channel for communication The DMAC protocol is energy efficient for low load; however it suffers higher

Ngày tải lên: 20/06/2014, 06:20

... argumentation for maximizing its throughput performance (Xu & Campbell, 1992) A DQ MAC protocol consists of several strategic rules, independently performed by each station by managing the aforementioned ... simulations, we evaluate its overall performance 4 DQ MAC energy-saving enhancements for BSNs Fig 2 shows the energy-saving superframe format of a DQ MAC protocol proposal for star-based BSNs The complete ... argumentation for maximizing its throughput performance (Xu & Campbell, 1992) A DQ MAC protocol consists of several strategic rules, independently performed by each station by managing the aforementioned

Ngày tải lên: 20/06/2014, 06:20

... 802.15.4-2003, IEEE Standards for Information Technology Part 15.4: Wireless Medium Access Control (MAC) and Physical Layer (PHY) Specifications for Low-Rate Wireless Personal Area Networks (LR-WPANs), ... Analysis of Wireless Sensor Networks via Evaluation of Connectivity and MAC performance 117 Throughput Analysis of Wireless Sensor Networks via Evaluation of Connectivity and MAC performance Flavio ... qp is straightforward In Figure 6 we report qp , q1 , q2 , q3 , q4 130 Emerging Communications for Wireless Sensor Networks ¯ As for qM... , n Instead, sensors are uniformly and randomly

Ngày tải lên: 20/06/2014, 06:20

... Protocols and Architectures for Wireless Sensor Networks, John Wiley & Sons Karp, B & Kung, H T (2000) GPSR: greedy perimeter stateless routing for wireless networks, Proceedings of the ... Protocols and Architectures for Wireless Sensor Networks, John Wiley & Sons Karp, B & Kung, H T (2000) GPSR: greedy perimeter stateless routing for wireless networks, Proceedings of the ... computa-tional intelligence for wireless sensor networks, under review Liu, Z & Elahanany, I (2006) RL-MAC: A reinforcement learning based MAC protocol for wireless sensor networks, International

Ngày tải lên: 20/06/2014, 06:20

... The parents subsequently forward this information to upper nodes until the information is delivered and collected by the base station (or the querier) Each reported information contains the sensor ... The parents subsequently forward this information to upper nodes until the information is delivered and collected by the base station (or the querier) Each reported information contains the sensor ... in WSNs, therefore, travel to only one aggregator point in the network before reaching the querier On the other hand, collected data in WSNs are aggregated more than one time before reaching

Ngày tải lên: 20/06/2014, 06:20

... (LQI) at 100 for various distances Therefore, transmission power for outdoor environment must be as high as possible to maintain a safety level of LQI, thus ensuring the quality of wireless communication ... consider hop counting for distance estimation This work uses an approach that is similar to vector routing algorithms At first, all sensor nodes broadcast their node ID and information to the nearest ... or ( - ) is the acute angle for the second node Fig 5 Estimation in Centralized System (Pu, 2009) For the second case, computation of triangulation can be performed inside the target node if

Ngày tải lên: 20/06/2014, 06:20

... Routing for Wireless Ad Hoc Networks, ICC, pp.443–447, Anchorage, Alaska, USA, May 2003 Lin C.-Y & Tseng, Y.-C (2004) Structures for In-Network Moving Object Tracking in Wireless Sensor Networks, ... Routing for Wireless Ad Hoc Networks, ICC, pp.443–447, Anchorage, Alaska, USA, May 2003 Lin C.-Y & Tseng, Y.-C (2004) Structures for In-Network Moving Object Tracking in Wireless Sensor Networks, ... Tracking Scheme for Wireless Sensor Networks with Deficient Number of Sensor Nodes Po-Hsuan Tseng, Wen-Jiunn Liu and Kai-Ten Feng X Mobile Location Tracking Scheme for Wireless Sensor Networks with

Ngày tải lên: 20/06/2014, 06:20

... placement, wireless mesh networks, wireless multi-hop networks 1 Introduction In the near future, broadband wireless mesh networks (WMNs) [1,2] are expected to be widely deployed for providing ... routing schemes However, different routing schemes are suita-ble for different networks, such as ad hoc networks, sen-sor networks, and stationary networks, such as WMNs Routing has been primarily designed ... multi-hop wireless network must have a routing scheme that selects a path to relay packets between IGW and MRs The shortest path routing and the mini-mum hop routing (e.g., AODV) are two popular routing

Ngày tải lên: 20/06/2014, 22:20

... environment for wireless sensor networks Wan Du * , Fabien Mieyeville, David Navarro and Ian O Connor Abstract This article presents IDEA1, a SystemC-based system-level design and simulation framework for ... platforms are evaluated. 1 Introduction In recent years, numerous applications of wireless sen- sor networks (WSNs) have been developed. Different applications have diverse requirements; for ... improves the performance of ATEMU in scalability. Node emulators provide the highest behavioral and timing accuracy of software execution. T he embedded software developed for physical platforms can

Ngày tải lên: 20/06/2014, 22:20

... AccessModelling the guaranteed QoS for wireless sensor networks: a network calculus approach Lianming Zhang1*, Jianping Yu2and Xiaoheng Deng3 Abstract Wireless sensor networks (WSNs) became one of ... Single-hop delay for N = 2, and multi-hops delay for N > 2 ΔD N Single-hop delay jitter for N = 2, and multi-hops delay jitter for N > 2 ee N Single-hop effective bandwidth for N = 2, and ... individual traffic flows, in feed-forward networks under arbitrary multiplexing, was computed [8] The maximum end-to-end delay, for a given flow in any feed-forward network under blind multiplexing,

Ngày tải lên: 21/06/2014, 00:20

... == greedy) { greedy forwarding; if (fail) mode = perimeter; } if (mode == perimeter) { if (have left local maxima) mode = greedy; else (right-hand rule); } GPSR greedy fails Greedy Forwarding greedy ... less collision Greedy Perimeter Stateless Routing (GPSR) Ì Maintenance r r all nodes maintain a single-hop neighbor table Use RNG or GG to make the graph planar Ì At source: r mode = greedy Ì Intermediate ... 802.11 MAC Ì Link bidirectionality Geographic Routing: Greedy Routing Closest to D S A D - Find neighbors who are the closer to the destination - Forward the packet to the neighbor closest to...

Ngày tải lên: 12/07/2014, 09:20