applications and recent developments in ad hoc networks

... antenna arrays in ad hoc networks is to use standard beamforming, that is, to point the main lobe of EURASIP Journal on Wireless Communications and Networking Interference Destination S Source ... Ramanathan, and N H Vaidya, “Using directional antennas for medium access control in ad hoc networks, ” in Proceedings of the 8th ACM Annual International Conference on Mobile Computing and Networking ... Ramanathan, “On the performance of ad hoc networks with beamforming antennas,” in Proceedings of the 2nd ACM International Symposium on Mobile Ad Hoc Networking & Computing (MobiHoc ’01), pp 95–105, Long...

Ngày tải lên: 21/06/2014, 22:20

... Analytical modeling The SIMM model uses two Markov chains with discrete parameters and states (0, 1, and 2), to represent movements in the x- and y-coordinate, with changes in coordinates x and y assumed ... representing not only patterns with only one increment in the x and y coordinates (e.g., the SIMM model), but also with several increment values in these coordinates, with a smooth variation in this increment ... [3] K H Wang and B Li, “Efficient and guaranteed service coverage in partitionable mobile ad hoc networks, ” in Proceedings of the 21st Annual Joint Conference of the IEEE Computer and Communications...

Ngày tải lên: 22/06/2014, 19:20

... [in ASCII format] [9] Kärpijoki, V Signalling and Routing Security in Mobile Ad Hoc Networks Proceedings of the Helsinki University of Technology, Seminar on Internetworking - Ad Hoc Networks, ... [in ASCII format] [12] Mäki, S Security Fundamentals in Ad Hoc Networking Proceedings of the Helsinki University of Technology, Seminar on Internetworking - Ad Hoc Networks, ... Aspects Ad hoc networks may apply either hierarchical or flat infrastructure both in logical and physical layers independently As in some flat ad hoc networks the connectivity is maintained directly...

Ngày tải lên: 22/03/2014, 15:21

... Multi-channel Mac for Ad Hoc Networks: Handling Multichannel Hidden Terminals Using a Single Transceiver, in 5th ACM International Symposium on Mobile Ad Hoc Networking and Computing, MobiHoc ‘04, 222–233 ... Quality of Service Provisioning in Ad hoc Wireless Networks: A Survey of Issues and Solutions Ad Hoc Networks 4, 83–124 (2006) L Kleinrock, F Tobagi, Packet Switching in Radio Channels: Part I-Carrier ... Multi-Channel Multi-Hop Ad Hoc Network, in 17th International Conference on Advanced Information Networking and Applications, AINA ‘03, 312–317 (2003) T Luo, M Motani, V Srinivasan, CAM-MAC: A Cooperative...

Ngày tải lên: 20/06/2014, 22:20

... grouping or clustering issues for reducing traffic overhead and broadcast storm problems of MANETs, reducing the rekeying costs in Figure 2: A elliptic curve with P + Q + R = O key updating and increasing ... Joining = O (1) Delete = O (log n) Joining = O(log n) Node joining/delete Node operations Max = 2h − Min = Fab(h + 2) − Max = 2h − Min = Fab(h + 2) − Max = n Min = Max = n Min = Max = 2h − Min ... efficient and scalable for numerous mobile nodes in ad hoc networks [13] [14] [15] [16] References [1] S M Das, H Pucha, and Y C Hu, “Distributed hashing for scalable multicast in wireless ad hoc networks, ”...

Ngày tải lên: 21/06/2014, 11:20

... capacity improvement of ad hoc wireless networks using directional antennas,” in Proceedings of the 4th ACM International Symposium on Mobile Ad Hoc Networking and Computing (MobiHoc ’03), pp 108–116, ... Kong and X Hong, “ANODR: anonymous on demand routing with untraceable routes for mobile ad- hoc networks, ” in Proceedings of the 4th ACM International Symposium on Mobile Ad Hoc Networking and ... Wireless Ad- Hoc Networks (ADHOC ’03), 2003 8 EURASIP Journal on Wireless Communications and Networking [8] Z Zhang, “Pure directional transmission and reception algorithms in wireless ad hoc networks...

Ngày tải lên: 21/06/2014, 20:20

... beamforming consists of two stages, local broadcasting and cooperative transmission In particular, in local broadcasting, each source node broadcasts its databearing signal to the other ones in the ... Journal on Advances in Signal Processing which is essentially equivalent to SINRi It should be notified that the SINRi based analysis and optimization are quite involved in cooperative ad hoc networks, ... multiple beamforming in wireless ad hoc networks: two concurrent beams are formed; K = 10 nodes in the source/destination cluster; M = source/destination nodes; K − M = unintended destination nodes...

Ngày tải lên: 22/06/2014, 19:20

... concern and are increasingly important Ad hoc networks cannot be used in practice if they are not secure, because ad hoc networks are subject to various attacks Wireless communication links can be intercepted ... used in the DCA (namely, Ch(v) and Join(v, u)) [3] In the following we use Cluster(v) and ClusterHead to indicate the set of nodes in the cluster whose ClusterHead is v and the ClusterHead of ... “Securing Ad Hoc networks, ” IEEE Network, vol 13, no 6, pp 24–30, 1999 [8] M Steenstrup, “Cluster-based networks, ” in Ad Hoc Networking, C E Perkins, Ed., chapter 4, pp 75–138, Addison-Wesley, Reading,...

Ngày tải lên: 23/06/2014, 00:20

... Chen and K Nahrstedt, “Distributed quality-of-service routing in ad hoc networks, ” IEEE J Select Areas Commun., vol 17, no 8, pp 1488–1505, 1999 [4] B Das and V Bharghavan, “Routing in ad- hoc networks ... routing (AQOR) in mobile ad hoc networks, ” Journal of Parallel and Distributed Computing, vol 63, no 2, pp 154–165, 2003 [11] C Zhu and M S Corson, “QoS routing for mobile ad hoc networks, ” in Proc ... and S K Tripathi, “Signal stability-based adaptive routing (SSA) for ad hoc mobile networks, ” IEEE Pers Commun., vol 4, no 1, pp 36–45, 1997 [10] Q Xue and A Ganz, Ad hoc QoS on-demand routing...

Ngày tải lên: 23/06/2014, 00:20

... should be evenly spread in the network 2.3.2.1 Creating a dominating set In [26], a dominating set is created to handle the discovery of services A dominating set is defined as a set that nodes ... as ring head The ring heads can then create level rings, and so on Each ring head caches the summary of the services hosted in its ring A query for a service then travels up and down in the hierarchy ... scheme could be only efficient in almost static networks, but it has the advantage of combining routing and resource discovery 2.3.2.2 Backbone and selective forwarding In order to make the service...

Ngày tải lên: 05/10/2015, 21:22

... Introduction 1.1 Introduction to Ad Hoc Networks 1.1.1 Advantages & Applications of Ad Hoc Networks 1.1.2 Challenges Faced by Ad Hoc Networks 1.1.3 Routing ... key joint mobile nodes Hidden-terminal and exposed-terminal problems are also faced by mobile ad hoc networks In a mobile ad hoc network, mobile nodes have both power and bandwidth constraints, ... N1, N2, N3, N4 and N5 then act as routers while establishing the connection between N0 and N6 1.1.1 Advantages & Applications of Ad Hoc Networks The major advantage of a mobile ad hoc network is...

Ngày tải lên: 10/11/2015, 11:07

... can handle mobility of nodes It minimizes routing loads and enhances expandability of network by allowing participating nodes to authenticate each other without being interrupted by joining the ... bootstrapping, applying a DCA private key, joining a new CH, evicting an existing CH, refreshing CH shares In Bootstrapping operation, to construct the shared key and establish a (k,n) threshold sharing ... even in the destination cluster or position Also, we can consider two kind of client nodes mobility, nodes mobility inside the nodes administrative domain and between the administrative domains...

Ngày tải lên: 20/06/2014, 22:20

... [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 [2] D B Johnson, D A Maltz, and J Broch, ... [9] A Alshanyour and U Baroudi, “Bypass-AODV: improving performance of ad hoc on-demand distance vector (AODV) routing protocol in wireless ad hoc networks, ” in Proceedings of the International ... the dynamic source routing protocol for multi-hop wireless ad hoc networks, ” in Ad Hoc Networking, pp 139–172, AddisonWesley, Reading, Mass, USA, 2001 [3] T Camp, J Boleng, and V Davies, “A survey...

Ngày tải lên: 21/06/2014, 11:20

... Jetcheva and D B Johnson, “Adaptive demand-driven multicast routing in multi-hop wireless ad hoc networks, ” in Proceedings of the 2nd ACM International Symposium on Mobile Ad Hoc Networking and Computing ... supporting ad hoc multicast routing protocol,” in Proceedings of the ACM International Symposium on Mobile Ad Hoc Networking and Computing (MobiHoc ’00), pp 37–44, 2000 C.-C Hu, E H.-K Wu, and G.-H ... reliability and robustness, and results in the consumption of less power In addition, it discovers routes and detects link failures on demand, thereby minimizing channel and storage overhead (improving...

Ngày tải lên: 21/06/2014, 22:20

... Beijing, China, in 2005 and is currently working toward the Master’s degree in communication engineering in Tsinghua University, Beijing, China From July to August 2004, he took part in an internship ... He graduated with the honor of eminent graduate from Tsinghua University in 2005 His research interests include wireless communications and networking, signal processing, and so forth Pingyi ... University, Beijing, China, in 2001 and 2004, respectively He is now a Research Fellow in the Electronic Engineering Department, Tsinghua University, Beijing, China His research interests are in the areas...

Ngày tải lên: 22/06/2014, 22:20

... “Towards commercial mobile ad hoc network applications: a radio dispatch system,” in Proceedings of the 6th International Symposium on Mobile Ad Hoc Networking and Computing (MobiHoc ’05), pp 355–365, ... envision realistic applications oriented to multihop ad hoc networks and understand how they could be developed in practice From this standpoint, GC applications are quite interesting They fit well ... middleware and routing issues,” Ad Hoc & Sensor Wireless Networks, An International Journal, vol 1, no 1-2, 2005 L Ji and M S Corson, “Explicit multicasting for mobile ad hoc networks, ” Mobile Networks...

Ngày tải lên: 22/06/2014, 22:20

... Cheng, J Sun, M Min, and D.-Z Du, “Energy-efficient broadcast and multicast routing in ad hoc wireless networks, ” in Proceedings of the 22nd IEEE International Performance, Computing and Communications ... dark arrows indicate links that are included into the tree in search phases and the light arrows indicate the links that are included into the tree in grow phases.) Finally, it remains to show ... by the shaded sector in Figure 5(a) There is no any other link included in the tree in the following grow operation Step In the second iteration, the link (4, 1) is found and added into the tree...

Ngày tải lên: 22/06/2014, 22:20

... mobile computing in wireless Ad Hoc networks, ” IEEE Commun Mag., vol 39, no 6, pp 138–147, 2001 [5] S Singh, M Woo, and C S Raghavendra, “Power-aware routing in mobile Ad Hoc networks, ” in Proc 4th ... Aruppukottai, Madurai University, in 1975, and graduated from Madras Institute of Technology with a major in electronics and communication engineering in 1978 He obtained his Ph.D degree in the area ... areas of research interest are mobile ad hoc networks, cellular IP networks, broadband ATM networks, and CDMA engineering and digital communication He received IETECDIL Award in September 2000...

Ngày tải lên: 23/06/2014, 00:20

... Packet Scheduling her research domain to broadband communication networks She is currently involved in the research and education on broadband mobile and wireless communication networks and on multimedia ... multimedia over IP Her main research interests related to mobile and wireless communication networks are adaptive QoS routing in wireless ad hoc networks, personal networks, body area networks, wireless ... Balakrishnan, and R Morris, “Span: An energy-efficient coordination algorithm for topology maintenance in ad hoc wireless networks, ” in Proc 7th Annual International Conference on Mobile Computing and Networking...

Ngày tải lên: 23/06/2014, 00:20

... following factors (Fig 3): (1) the area of the drain; (2) the effect of lateral earth pressure; (3) possible folding, bending and crimping of the drain, and (4) Infiltration of fine particles into ... site can be graded and a sand blanket placed and compacted Field instrumentation for monitoring and evaluating embankments is vital to examine and control any geotechnical problems Instrumentation ... and Geoenvironmental Engineering Vol 124, No 2, 180-184, 1998 15 Indraratna, B and Redana, I W Numerical modeling of vertical drains with smear and well resistance installed in soft clay Canadian...

Ngày tải lên: 21/07/2014, 17:20