a quality based routing protocol for wireless mesh networks

... and location-based routing [2, 31] The hierarchical-based schemes aim to cluster the nodes so that cluster heads can be responsible for aggregating and disseminating data The grid-based protocols ... W., Sankarasubramaniam, Y., & Cayirci, E. (2002) A survey on sensor networks IEEE Communications Magazine, 40(8), 102–114. 2 Al-Karaki, J N., & Kamal, A E (2004) Routing techniques in wireless ... entry as (F,null,E,A) into its RIT to establish a new dis-semination path (E,F) as is marked by the gray arrow Trang 7An energy-aware grid-based routing scheme for wireless sensor networksTable

Ngày tải lên: 01/11/2022, 08:32

... Propagation delay is compensated compared with several important related papers (3) Minimum data exchange is achieved for both offset and skew rate compensation, and at the same time the propagation ... performance when the network is time delay balanced The reason is that Trang 4the averaging operation for a Gaussian distributed delay approaches zero This method would not be suitable for an ... propagation delay and further used for offset and skew rate compensation Without extra data exchange, just using the exchanged messages, the algorithm takes average of the offset and skew rate value

Ngày tải lên: 02/11/2022, 08:52

... (WSN) Nomenclature AAS Automatic Active and Sleep ADC-SMAC Adaptive Duty Cycle SMAC A-MAC Advertisement-based MAC BDIF Broadcast Destinations Inter Frame BN-MAC Boarder Node Medium Access Control ... four major application areas: monitoring and behavioral areas, controlling natural disasters, human-centric applications, and tracking mobility and static home automation devices from remote places ... scheduled and contention-based MAC protocols Like contention-based MAC protocols, BN-MAC achieves high channel utilization, network adaptability under heavy traffic and mobility, and low latency and

Ngày tải lên: 02/11/2022, 09:25

... multipath-based, quality-of-service-based, coherent-based, and negotiation-based For each routing technique, they state its advantages and shortcomings and study the energy and communication overhead ... different available routing techniques They classify the techniques based on the network structure as flat, hierarchical, or location-based; and based on the protocol operation as query-based, multipath-based, ... Negotiation-based: Such protocols initiates negotiation messages prior to data messages in an attempt to eliminate the transmission of duplicate or redundant information  Data Aggregation: The

Ngày tải lên: 01/11/2022, 09:08

... but separate, basic quarterly and annual feed-back reports containing data on the extended indicator set Also, support by the NICE data managers is available and includes data quality audits, ... quality assurance [32], including elements like periodical on-site data quality audits and automated data range and consis-tency checks For each ICU, additional data checks for completeness and accuracy ... stay for admissions to adult general critical care units in England, Wales and Northern Ireland: the Intensive Care National Audit & Research Centre Case Mix Programme Database Critical Care

Ngày tải lên: 10/08/2014, 11:20

... node and sink node and included a load balancing algorithm to distribute source node's traffic over multiple paths based on the relative quality of each path The simulation shows that in high traffic ... (as closer as possible) In this section, we analyze packet latency and make the probabilistic formulation of reliability for both single-path and multipath routing The results show that load-sharing ... only N packets would be sent over one path, so the average queuing delay of packet type A and B is equal and can be approximately calculated as the delay of the middle packet  N / 2  For type

Ngày tải lên: 12/02/2020, 17:14

... high-fidelitycomputationalsoftware andprotocols, withappropriate verificationandvalidation(V&V)accordingtoapplicablenational standards.Asuiteofwell-recognizedstochasticanddeterministic transporttheorybasedreactorphysicscodesandtheirsupporting ... forV&Vintheneartermandpossiblyasadvancedplatformsfor full3-dimensionalMonteCarlobasedfuelcycleanalysisandfuel managementinthelongerterm Ontheexperimentalsideoftheeffort,severalnew benchmark-qualitycodevalidationmeasurementsbasedonneutronactivation ... etal.,1996)andMCNP5(Goorleyetal.,2004))isinplaceatthe INLforthispurpose,andcorrespondingbaselinemodelsoftheATR anditscompanioncriticalfacility(ATRC)areoperational Further-more,acapabilityforrigoroussensitivityanalysisanduncertainty quantification

Ngày tải lên: 24/12/2022, 00:50

... as a single entity Cloud computing is an example of an ultimately virtu-alized system, and a natural evolution for data centers that employ automated systems management, workload balancing, and ... Java™ and Linux, Apache, MySQL, PHP (LAMP) stack-based applications as well as new architectures such as Map- Reduce and the Google File System, which provide a means to scale applications across ... Unavailability of a web site may hinder the on-going transactions and it may lead to loss of money and cus-tomers Technologies such as load balancing hardware and software are aimed at ensuring availability

Ngày tải lên: 31/07/2013, 09:43

... conversation about how to move the postsecondary and employment and training fields toward a qualifications framework for awarding educational credit for occupational education and training based ... can earn educational credit for technical instruction What began as an effort to ensure that postsecondary credits can transfer has led to a process for awarding educational credit for occupational ... However, ANSI is perhaps the best illustration of the sort of broad-based, voluntary national standards organization that could serve as a model for creating a competency-based framework for noncredit

Ngày tải lên: 16/02/2014, 03:20

... statistical machine translation In NAACL. H Hassan, K Sima’an, and A Way 2007 Supertagged phrase-based statistical machine translation In ACL. M Johnson 2003 Learning and parsing stochastic unification-based ... The alignment template approach to statistical machine translation Computational Linguistics, 30(4):417–449. F J Och, D Gildea, S Khudanpur, A Sarkar, K Yamada, A Fraser, et al 2004 A smorgasbord ... Habash and O Rambow 2005 Arabic tokenization, part-of-speech tagging and morphological disambiguation in one fell swoop In ACL. N Habash and F Sadat 2006 Arabic preprocessing schemes for statistical

Ngày tải lên: 16/03/2014, 19:20

... as it is calculating the update Zhang and Clark compare aspects of transition-based and graph-based pars-ing, and end up using a transition-based parser with a combined transition-based/second-order ... integrated algorithm we are looking for has to be transition-based at the top level The advan-tages of the graph-based approach – a more glob-ally informed basis for the decision among dif-ferent attachment ... in the beam are recalculated based on a scoring model inspired by the graph-based parsing ap-proach, i.e., taking complete factors into account as they become incrementally available As a con-sequence

Ngày tải lên: 17/03/2014, 22:20

... Trang 1R E S E A R C H Open AccessModelling the guaranteed QoS for wireless sensor networks: a network calculus approach Lianming Zhang1*, Jianping Yu2and Xiaoheng Deng3 Abstract Wireless ... this article are a system skeleton and a guaranteed QoS model that are suitable for the WSNs To do it, we develop a sensor node model based on virtual buffer sharing and present a two-layer scheduling ... Network calculus is the results of the studies on traffic flow problems, min-plus algebra and max-min-plus algebra applied to qualitative or quantitative analysis for networks in recent years, and

Ngày tải lên: 21/06/2014, 00:20

... parameters of FPGA A buzzer is for alarm on the test failure Trang 8SRAM 64 MB (for display and alarm)LED and buzzerSARC Altera EP2C8 FPGA CPU AT91SAM7X256 Ethernet PHY: DM9161A Serial port A ... core application is for network data gathering and information classification Other applications are listed as following “Interconnect Signal Analyzer” is to reconstruct raw internal signals and ... in Figure 9 All synchronized data are classified to separated categories, and saved to trace files at the same time There are a number of applications to analyze the network behavior for different

Ngày tải lên: 21/06/2014, 17:20

... [14], cars act as data mules and employ a carry-and-forward paradigm to transfer data packets to a portal Finally, in [15], opportunistic data delivery is studied when both traditional routing and ... delay-tolerant applications A variety of measurements have been made recently available on the Internet [3, 26] in the form of traffic traces or contact patterns When a historical database of contacts ... 8th ACM International Symposium on Mobile Ad Hoc Networking and Computing (MobiHoc ’07), pp 32–40, ACM, September 2007 [6] A Balasubramanian, B Levine, and A Venkataramani, “DTN routing as a resource...

Ngày tải lên: 21/06/2014, 11:20

... packet Therefore, data packets are piggybacked to update buffer state When a sensor x sends out a data packet, it piggybacks its residual-buffer size in the frame header If a neighbor y overhears ... introduce a schedule -based scheme at the transport layer for rate assignment and ordered delivery of event packets to underlying routing layer By using a schedulebased scheme at the transport layer ... the next hop node’s transport buffer Nodes maintain a queue at the transport layer and Faisal B Hussain et al forward a single packet from it during their allocated slots Packet delivery time not...

Ngày tải lên: 21/06/2014, 23:20

... state-free gradient -based forwarding protocol for wireless sensor networks ACM Trans Sen Netw 5(2), 1–25 (2009) A Basu, A Lin, S Ramanathan, Routing Using Potentials: A Dynamic TrafficAware Routing Algorithm, ... phase, sinks flood an ADV packet In receiving an ADV packet, a senor node calculates its gradient using the information specified in the received ADV packet In the data forwarding phase, an address ... the proposed addressing-free forwarding strategy GLOBAL includes an addressing-free data forwarding strategy In GLOBAL, if a node (say node A) updates its gradient after receiving a packet, the...

Ngày tải lên: 21/06/2014, 00:20

... omni-directional or directional antenna for the backbone of the WMN A directional antenna (also called a sectored antenna) is different from an omni-directional antenna in that it only transmits the signal ... the backbone network In general, the local service antenna has a smaller transmission range, and the backbone service antenna has a larger transmission range, i.e., PL

Ngày tải lên: 20/06/2014, 22:20

... WSNHA-LBAR and LAR maintained a high packet delivery ratio However, the performance for packet average delay of LAR and AODVjr was better than that of WSNHALBAR because automatic self-learning ... performance for packet average delay of LAR and AODVjr was better than that of WSNHALBAR because automatic self-learning in WSNHA-LBAR is exchanged by the decrease of performance for packet average ... performance for packet average delay of LAR and AODVjr was better than that of WSNHA-LBAR because automatic self-learning in WSNHA-LBAR is exchanged by the decrease of performance for packet average...

Ngày tải lên: 21/06/2014, 05:20

... nDL LDATA nDL + L + tST + ACK (12) R TDATA R TDATA LDATA nDL L n +1 + tST + ACK DL , R TDATA R TDATA (13) LDATA R TDATA (15) In B-MAC, all data in a radio range is received As a leaf node has ... neigha a a aa bor discovery protocol for mobile wireless sensor networks, ” Ad Hoc Networks, vol 7, no 1, pp 24–41, 2009 [39] A Sakata, T Yamazato, H Okada, and M Katayama, “Throughput comparison ... (HR) and CC1000 (LR) platforms Channel access is based on superframes that are repeated at regular intervals (access cycle) as shown in Figure A node may act as a cluster head and maintain its...

Ngày tải lên: 21/06/2014, 11:20

... sana1691@yahoo.com SMRI: riazulislam@ieee.org Abstract Applications of wearable and implanted wireless sensor devices are hot research area A specialized field called the body area networks (BAN) ... applications such as BAN Another argument in favor of using out-of-band wakeup radio is that a wakeup radio -based scheme in BAN can save a significant amount of power 2.2 Motivation A BAN needs ... radio can be used to design a power efficient MAC A TDMA -based approach has many advantages over other similar techniques such as CSMA/CA and FDMA Authors of [12] have provided a comparison between...

Ngày tải lên: 21/06/2014, 17:20