ad hoc wireless networks architectures and protocols by murthy ppt

... multi-hop wireless ad hoc networks,” in Ad Hoc Networking, pp 139–172, Addison-Wesley, Reading, Mass, USA, 2001 [3] T Camp, J Boleng, and V Davies, “A survey of mobility mod-els for ad hoc network ... C E Perkins and E M Royer, “The ad hoc on-demand distance vector protocol,” in Ad Hoc Networking, pp 173–219, Addison-Wesley, Reading, Mass, USA, 2001 [2] D B Johnson, D A Maltz, and J Broch, ... Study: The Impact of Random and Realistic Mobility Models on the Performance of Bypass-AODV in Ad Hoc Wireless Networks Ahed Alshanyour1and Uthman Baroudi2 Correspondence should be addressed to Uthman

Ngày tải lên: 21/06/2014, 11:20

... Table of Contents Wireless Sensor Networks—Architectures and Protocols Chapter 1 - Introduction to Wireless Sensor Networks Chapter2 - The Development of Wireless Sensor Networks Chapter 3 - ... or enabled by wireless sensor networks is limited only by one's imagination, and range from conventional radio-controlled cars and boats to computer games employing wireless joysticks and controllers ... Callaway, Edgar H 'Wireless sensor networks : architectures and protocols / Edgar H Callaway p em Includes bibliographical references and index 0-8493-1823-8 1 Sensor networks 2 Wireless LANs I

Ngày tải lên: 20/10/2022, 13:50

... view adhoc wireless networks as a special subset of wireless networks In fact, the adhoc radio technology and most of the MAC technology will be driven by theadvancements in infrastructure wireless ... characteristics of adhoc networks in more detail 1.1.2 Ad hoc Networks Characteristics Mobility: the fact that nodes can be rapidly repositioned and/or move is the raison d’etre of ad hoc networks Rapid ... evolution, ad hoc networking will get a new spin and wired Internetand ad hoc networks will finally come together to produce viable commercialapplications 1.1.1 Wireless Evolution We begin by studying

Ngày tải lên: 01/06/2014, 00:31

... these protocols have been proposed for use in ad hoc networks These protocols are broadly classified into the two traditionalcategories: distance vector and link state In distance vector protocols, ... 19] and linkstate-based OSPF [40]) fall under this category However, these protocols arenot directly suitable for resource-poor and mobile ad hoc networks because oftheir high overheads and/or ... 65vector and link state protocols tailored for ad hoc networks Section 4 describesthree prominent on-demand protocols along with some generic optimizations.In Section 5, we compare proactive and reactive

Ngày tải lên: 14/08/2014, 13:20

... ordesigned specifically for ad hoc networks Most of these protocols attempt toadapt to the network dynamics in ad hoc networks The primary goal of adhoc multicasting protocols should be to construct/maintain ... protocols for ad hoc casting, both tree-based and mesh-based, do not make explicit efforts to takeadvantage of the broadcast nature of wireless medium In an ad hoc networkwith a shared wireless channel, ... to the receivers as possible In ad hoc networks, we want to adhere to thisrequirement as closely as possible because of the severe bandwidth limitations in ad hoc networking environments Similar

Ngày tải lên: 14/08/2014, 13:20

... losses In ad-hoc networks, in addition to congestion and random wirelesserrors, mobility serves as another primary contributor to losses perceived byconnections Random wireless errors are addressed ... Trang 1K Tang and M Gerla Random access MAC for efficient broadcast supportin ad hoc networks In Proc of IEEE WCNC 2000 P Mohapatra, J Li, and C Gui QoS in mobile ad hoc networks SpecialIssue ... Next-Generation Wireless Multimedia Communications Systems in IEEE Wireless Communications Magazine, June 2003 [34] [35] Trang 2TRANSPORT LAYER PROTOCOLS IN AD HOC NETWORKSAd-hoc networks, TCP

Ngày tải lên: 14/08/2014, 13:20

... Performance over Three Routing Protocols for Mobile Ad Hoc Networks ,” in Proceedings of ACM MOBIHOC 2001, Long Beach, CA, Oct 2001. J Liu and S Singh, “ATCP: TCP for Mobile Ad Hoc Networks,” in IEEE Journal ... as-sociated with communication in ad hoc networks and then discuss the use ofcommunication-time and idle-time energy conservation Trang 5Energy Consumption in Ad Hoc Networks 155In general there are ... energy-saving mechanisms used by many protocols 6.1 Energy Consumption in Ad Hoc Networks 6.1.1 Point-to-Point Communication The basis for all communication in ad hoc networks is the point-to-pointcommunication

Ngày tải lên: 14/08/2014, 13:20

... multi-hop wireless networks In 3rd ACM Internacommunica-tional Symposium on Mobile Ad Hoc Networking and Computing (MobiHoc), 2002. L Bao and J J Garcia-Luna-Aceves Topology management in ad hoc networks ... for mobile ad hoc networks Mobile Networks and Applications, 6(3):239–249, June 2001. L M Feeney A QoS aware power save protocol for wireless ad hoc networks In Mediterranean Ad Hoc Networking ... protocol for wireless ad hoc networks In IEEE INFO-COM, 2003. S Narayanaswamy, V Kawadia, R S Sreenivas, and P R Kumar Powercontrol in ad-hoc networks: Theory, architecture, algorithm and imple-

Ngày tải lên: 14/08/2014, 13:20

... antennas on theperformance of on-demand routing protocols (such as the Ad hoc On DemandDistance Vector Routing or the Dynamic Source Routing [9]) On-demand routing protocols are based on searching ... these antennas can in fact cause a degradation inperformance 7.5 Broadcast with Directional Antennas In mobile ad hoc networks, it is often required to send a broadcast packet to all nodes in the ... example wherein node B iniates acommunication with node E The handshake is achieved by the exchange of aDRTS and a DCTS message (from B and C respectively) If A is in the omni-directional reception

Ngày tải lên: 14/08/2014, 13:20

... Ariadne: A secure on-demand routing protocol for ad hoc networks. .. fairness in dynamic ad- hoc networks In Proceedings of the IEEE/ACM Workshop on Mobile Ad Hoc Networking and ... an ad-hoc network, either this functionality needs to be performed distributedly or other changes need to be made to these protocols to use them in ad-hoc networks. 246 QoS Issues in Ad-hoc Networks ... Johnson, and A Perrig SEAD: secure efficient distance vector routing for mobile wireless ad hoc networks Ad Hoc Networks, 1(1): 175– 192, July 2003 [18] Y Hu, A Perrig, and D Johnson

Ngày tải lên: 14/08/2014, 13:20

... mobile ad hoc networks, data is transmitted continu-ously and randomly so mobile device has to wake up to listen to the channel Therefore, unlike mobile ad hoc networks, the MAC design for sensor networks ... these papers are designed for mobile ad hoc networks but not sensor networks Unlike sensor networks, bat-tery constraint is not a major issue of mobile ad hoc networks Therefore, only few papers ... applications, wireless sensor networks still face a number of challenges due to their particular characteristics that other wireless networks, like cellular networks or mobile ad hoc net-works

Ngày tải lên: 14/12/2017, 17:47

... Abstract: Broadcasting is a common and basic operation used to support various network protocols in wireless networks To achieve energy-efficient broadcasting is especially important for ad hoc wireless ... Broadcasting in Ad Hoc Wireless Sensor Networks Naixue Xiong 1,2 , Xingbo Huang 3 , Hongju Cheng 3, * and Zheng Wan 1 1 School of Information Technology, Jiangxi University of Finance and ... of ad hoc wireless sensor networks, which consist of a large number of sensing devices that are capable of sensing, processing and transmitting environmental information The wireless sensor networks

Ngày tải lên: 02/11/2022, 09:22

... 1ARTIFICIAL NEURALNETWORKS – ARCHITECTURES AND APPLICATIONS Edited by Kenji Suzuki Trang 2Edited by Kenji SuzukiContributors Eduardo Bianchi, Thiago M Geronimo, Carlos E D Cruz, Fernando de Souza ... network by learning The purpose of this book is to provide recent advances of architectures, methodologies andapplications of artificial neural networks The book consists of two parts: architectures ... hidden units, and C output units w 1 andw 2 are the synaptic weight matrices between input and hidden layers and between hidden and output layers, respectively The “extra” neurons in input and hidden

Ngày tải lên: 15/03/2014, 23:20

... different habitats, e.g., ponds and streams, soils and farmland, shrubs and trees, grassland and dwellings They were then preserved according to standard methods [27] and identified with the help ... do and consume mostly Coleoptera and Hemiptera; amongst the Galo, on the other hand, Odonata and Orthoptera dominate The selection of the food insects amongst the Nyishi and Galo is dictated by ... (N) Aug-Oct Adult stage is consumed Boiled, roasted and paste is made Anal cirri and antennae are discarded Esteemed by all age groups Brachytrypes sp (African genus, but given as such by Zool Survey

Ngày tải lên: 10/08/2014, 09:21

... Signore, IP, RM, TG and EL performed research and analysed data GT and PC selected the patients and performed clinical and laboratory analyses. M Sorice and GD designed the research and wrote the paper. ... for one hour at 4°C and supernatants were transferred to new vials Protein content was determined by Bradford assay using BSA as a standard (Bio-Rad Lab., Richmond, CA, USA) and samples were frozen ... fentanyl and vecuronium administered according to clinical need In all patients a radial artery catheter was inserted for continuous monitoring of arterial blood pressure In addition, standard

Ngày tải lên: 13/08/2014, 21:21

... Caspase-2 Protocols 71 Loretta Dorstyn and Sharad Kumar 5 Caspase-14 Protocols 89 Mami Yamamoto-Tanaka and Toshihiko Hibino 6 Caspase Protocols in Caenorhabditis elegans 101 Eui Seung Lee and ... Fogarty and Andreas Bergmann 8 Methods for the Study of Caspase Activation in the Xenopus laevis Oocyte and Egg Extract 119 Francis McCoy, Rashid Darbandi, and Leta K Nutt 9 Caspase Protocols ... established protocols for high-throughput analysis of caspase substrate specifi city and caspase substrates by employing chemistry and teomics The second part of the book provides experimental protocols

Ngày tải lên: 25/11/2021, 21:21

... contain a rook and are notcanceled by a rook in P Then one can prove a q-analogue of (1.5) by summing F(q) = X P∈F n (B x ) in two different ways Theorem 2.2 For any x ∈ N and and skyline board ... rook in P and which arenot j-attacked by any rook in P, 3 eB(P)equals the number of cells of B which lie in a column with no rook in P andwhich are not j-attacked by any rook in P, and 4 c1 <· ... cells canceled by the rook in the first column of upper augmented part by placing a • in those cells and the cells canceled by therook in the second column of the upper augmented part by placing

Ngày tải lên: 07/08/2014, 21:20

... evaluate the algo-rithm’s security and to determine its suitability as a federal standard In November 1976,the Data Encryption Standard was adopted as a federal standard and authorised for use onall ... description of the standard, FIPS PUB 46, Data Encryption Standard was published on 15 January 1977 The DES algorithm was the best one proposed and was adopted in 1977 as the Data EncryptionStandard even ... equal to the additive inverse modulo 216 of the corresponding subkeys’ third and second encryption subkeys For rounds 1 and 9,the second and third decryption subkeys are equal to the additive inverse

Ngày tải lên: 09/08/2014, 06:23

... numberp and two random numbers, gandx, such that bothg < pandx < p, wherex is a private key The random numberg Trang 13is a primitive root modulop The public key is defined byy,gandp Then ... public keyeand the modulusn, the private keyd for decryption has to be found by factoringn Choose two large prime numbers,p and q, and compute the modulus n Trang 6The decryption keyd and the modulusnare ... chooses a random integer X i and the userj a random integerX j.Then the user i picks a random number X i from the integer set {1, 2, , q − 1} Theuseri keepsX i secret, but sends and useK ij

Ngày tải lên: 09/08/2014, 06:23

... RTP/UDP/IP protocols The total header overheadconsists of: IP header: 20 bytes for IPv4 (IPv6 would add a 20 bytes overhead); UDP header: 8 bytes;RTP header: 12 bytes Table 3.10 Potential services ... IPv4 The space RTP payload vs headers overhead Figure 3.11 Bandwidth of RTP payload and RTP/UDP/IP header for different packet sizes. Trang 10occupied by RTP payload headers is considered to be ... RTP payload format and file storage format for the Adaptive Multi-Rate (AMR) and Adaptive Multi-Rate Wideband (AMR-WB) audio codecs RFC 3389 RTP payload for comfort noise RFC 3497 RTP payload format

Ngày tải lên: 14/08/2014, 12:20