ad hoc wireless networks architectures and protocols chapter 6 ppt

... Track project FT 2005-16 References [1] 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 ... B Johnson, D A Maltz, and J Broch, “DSR: the dynamic source routing protocol for multi-hop wireless ad hoc networks,” in Ad Hoc Networking, pp 139–172, Addison-Wesley, Reading, Mass, USA, 2001 ... 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

... 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 ... 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 ... 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

... 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 - The ... Chapter4 - The Data Link Layer Chapter5 - The Network Layer Chapter 6 - Practical Implementation Issues Chapter 7 - Power Management Chapter8 - Antennas and the Definition of RF Performance Chapter9 ... 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

... 5 6 7 000ced9158c9 588490792e94 54882eb9409b a2a006077207 280e26b621e4 e 030 38a08bc7 84867056a6 93 5a1ec4b60e98 710c31 833 4c6 c5a8b4ec83a5 96a696124ecf 7e16225e9191 ea906c 836 569 88c25e6abb00... ... Z (37 , 38 , , 52) Z38 = Z( 53, 54, , 68) Z39 = Z(69, 70, ... 88c25e6abb00 03e4ee7c63c8 8486dd46ac65 575a226a8ddc aab9e009d59b 98664f4f5421 615718ca496c 4499e580db9c SYMMETRIC BLOCK CIPHERS ... CIPHERS 63 Table 3.4 Initial permutation (IP) 58 50 42 34 26 18 10 2 L i 60 52 44 36 28 20 12 4 62 54 46 38 30 22 14 6 64 56 48 40 32 24 16 8 57 49 41 33 25 17 9 1 R i 59 51 43 35 27 19 11 3 61 53

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 ... thenext section In 1976, Diffie and Hellman introduced the idea of the exponential key exchange In 1977Rivest, Schamir and Adleman invented the RSA algorithm for encryption and digital sig-natures

Ngày tải lên: 09/08/2014, 06:23

... ≡ 1 669 61 (mod 851) ≡ 41 . . . 084 61 (mod 851) ≡ 10 Hence,h= 1411003032239129071 43 18 37 47 76 01 18 20 35 10 Convert it to the hexadecimal number: h = 6a26ee0ed9ce3963ec8b0f98ebda8476 Thus, ... e A = 61 from CA and apply e A to the signed hash value c: c = 001 669 084 400 400 091 348 719 157 303 635 439 333 047 089 001 439 520 466 084 Using e A , compute h = c eA as follows: 1 61 (mod ... H(m) = H(785ac3a4bd0fe12d) = 6a26ee0ed9ce3963ec8b0f98ebda8476 ( hexadecimal) h = 141100303223912907143183747760118203510 ( decimal) Choose d A = 13 (A’s private key) and compute: c = h d A PUBLIC-KEY

Ngày tải lên: 09/08/2014, 06:23

... and thecomputer spreadsheets is common If the data entered onto the spreadsheet are doubleentered or cross-checked, this error is significantly reduced * Plate 6.1 appears at the end of the chapter. ... multiple wells by three consultants between 1991 and 1994.In Figure 6.1, the TCE values for samples collected by Consultants A and B between 1991 and 1993 are smaller than the TCE concentrations ... southwest andnortheast Figure 6.2A does not contain reference to the omitted data FIGURE 6.1 TCE concentrations from five groundwater monitoring wells collected by three consultants between 1991 and

Ngày tải lên: 11/08/2014, 09:21

... as follows: 6.6 Binary Adders and Subtractors Half and Full Adders Half adder A circuit that will add two bits and produce a sum bit and a carry bit Full adder A circuit that will add a carry ... on the full adder andhalf adder circuits The half adder adds two bits and produces a sum and a carry The fulladder also allows for an input carry from a previous adder stage Parallel adders have ... two numbers being added are called the augend and the addend, or more erally, the operands. gen-For example, in the decimal addition 9
6  15, 9 is the augend, 6 is the addend, and 15 is the sum

Ngày tải lên: 14/08/2014, 10:22

... Figure 12-26 appears Name the profile on the lefthand side of the box and select the network type on the right Access Point networks and Residential Gateways are infrastructure networks, and Peer-to-Peer ... development lines in Windows (9x versus NT and progeny), and adding additional software such as a VPN client can further complicate matters (My advice is to install the wireless LAN card before any VPN ... After naming the profile and entering a detailed description, the user must then select the type of network in use Infrastructure networks use access points, and ad hoc networks are independent

Ngày tải lên: 14/08/2014, 13:20

... 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 ... though nodes are moving. Trang 2Flooding 65vector and link state protocols tailored for ad hoc networks Section 4 describesthree prominent on-demand protocols along with some generic optimizations.In

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

... communication and introduce 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 ... the wireless communication device when the node is idle [26] [34] [56] [57] [65] [69] [72] [35]. Communication in ad hoc networks necessarily drains the batteries of the participating nodes, and ... 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

Ngày tải lên: 14/08/2014, 13:20

... 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 ... 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 ... Computing, chapter Dynamic source routing in ad hoc wireless networks, pages 153–181 Kluwer demic Publishers, February 1996 Aca-E.-S Jung and N H Vaidya A power control MAC protocol for ad hoc networks

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 ... two sources and and these nodes want to establishconnections with nodes and respectively For the connection from node to node two distinct routes are feasible The first is via nodes andand the second

Ngày tải lên: 14/08/2014, 13:20

... Routing in mobile ad hoc networks 110 6. 3 Routing with quality of service constraints 112 6. 4 Quality of service routing in ad hoc networks 118 6. 5 Conclusion and further reading 1 26 6 .6 References ... C. 6 Introduction SECURITY AND QUALITY OF SERVICE IN AD HOC WIRELESS NETWORKS Ensuring secure transmission and good quality of service (QoS) are key commercial concerns in ad hoc wireless networks ... an ad hoc network, as we shall see below. I address the general issue of routing in mobile ad hoc networks separately in the next section. The shared wireless environment of mobile ad hoc networks...

Ngày tải lên: 25/03/2014, 12:07

... Personal, and Local Ad Hoc Wireless Networks M arco Conti 2 M ulticasting Techniques in Mobile Ad Hoc Networks X iao Chen and Jie Wu 3 Qualit y of Service in Mobile Ad Hoc Networks ... switches, and servers). Such systems are sometimes referred to as mobile ad hoc networks (MANETs) [33] or as infrastructure-less wireless networks. 1.2 Mobile Ad Hoc Networks A Mobile Ad hoc ... Chakrabarti and Amitabh Mishra 4 P ower-Conservative Designs in Ad Hoc Wireless Networks Y u-Chee Tseng and Ting-Yu Lin 5 P erformance Analysis of Wireless Ad Hoc Networks...

Ngày tải lên: 03/06/2014, 01:08

... EURASIP Journal on Advances in Signal Processing 0.54 0. 56 0.58 0 .6 0 .62 0 .64 0 .66 0 .68 0.7 0.72 0.74 Saturated throughput 0.10.15 0.20.25 Probability of the channel being bad n = 5 n = 10 n = ... of mobile ad hoc networks, IEEE 802.11 presents several drawbacks in the context of ad hoc networks, one of them being its poor throughput performance. Gupta and Kumar introduced a random network ... 3, pp. 833–8 36, Montreal, Canada, May 2004. [11] M. Ashraf, A. Jayasuriya, S. Perreau, and L. Rasmussen, “Channel MAC: a novel medium access control paradigm for wireless ad hoc networks, ” in...

Ngày tải lên: 21/06/2014, 22:20