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 ... 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 as their application ... mobile ad hoc networks (MANETs) There are various reasons why wireless ad hoc networks are at risk, from a security point of view. The next paragraphs discuss the characteristics that make these networks...

Ngày tải lên: 25/03/2014, 12:07

... 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 NETwork (MANET) is a system of wireless mobile ... 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 ... 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 A nurag Kumar and Aditya Karnik 6 ...

Ngày tải lên: 03/06/2014, 01:08

... 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 ... connectivity probability of a wireless ad hoc network,” in Proceedings of the International Workshop on Wireless Ad- Hoc Networks, pp. 120–124, June 2004. [5] F. Bai, N. Sadagopan, and A. Helmy, “Important: ... 2005-16. References [1]C.E.PerkinsandE.M.Royer,“Theadhocon-demand distance vector protocol,” in Ad Hoc Networking, pp. 173–219, Addison-Wesley, Reading, Mass, USA, 2001. [2]D.B.Johnson,D.A.Maltz,andJ.Broch,“DSR:the dynamic...

Ngày tải lên: 21/06/2014, 11:20

... (WLANs). Although often used in practical implementations 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. ... Rasmussen, “Channel MAC: a novel medium access control paradigm for wireless ad hoc networks, ” in Proceedings of the Australian Telecommunication, Networks and Applications Conference (ATNAC ’06), pp. ... capacity of wireless networks, ” IEEE Transactions on Information Theory,vol.46,no.2,pp. 388–404, 2000. [2] M. Grossglauser and D. N. C. Tse, “Mobility increases the capacity of ad hoc wireless networks, ”...

Ngày tải lên: 21/06/2014, 22:20

Ngày tải lên: 22/06/2014, 22:20

... ad hoc wireless networks, ” in Mobile Computing,T.Imielinskiand H. F. Korth, Eds., chapter 5, Kluwer Academic Publishers, Dodrecht, The Netherlands, 1996. [4] C. E. Perkins and E. M. Royer, Ad ... routing protocols for ad hoc topology wireless sensor networks. Most of the above protocols use broadcast to do routing, which will cause high energy consumption and high control overhead. Recently, ... routing algorithm in wireless sensor ad hoc networks. The random ant-like unicast routing (RAUR) scheme is proposed and simulations were run to compare the network performance of networks running...

Ngày tải lên: 21/06/2014, 17:20

Ngày tải lên: 23/06/2014, 00:20

Ngày tải lên: 09/07/2014, 08:13

... MAC protocols studied in this paper. In Section 3 Wireless Ad- Hoc Networks4 Section 1 MAC Protocols for Wireless Ad- Hoc Networks WIRELESS AD- HOC NETWORKS Edited by Hongbo Zhou Comparison of the ... chapter. Wireless Ad- Hoc Networks2 6 Chapter 1 Comparison of the Maximal Spatial Throughput of Aloha and CSMA in Wireless Ad- Hoc Networks B. Blaszczyszyn, P. Mühlethaler and S. Banaouas Additional ... IEEE 802.11. The header fields are defined as follows. Wireless Ad- Hoc Networks3 0 18 Mobile Ad- Hoc Networks 0 0.2 0.4 0.6 0.8 1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 Offerred Load Fairness Index GR-PSMAC GR-Limited-1 Figure...

Ngày tải lên: 14/03/2014, 21:20

... pursuing. 15 Security for Wireless Ad Hoc Networks, by Farooq Anjum and Petros Mouchtaris Copyright # 2007 John Wiley & Sons, Inc. 1.3.2 Vulnerabilities in Ad Hoc Networks Mobile computing ... of ad hoc networks, some reside in their routing, others in their use of wireless links and still some others in their auto-configuration mech- anisms. These key functionalities of ad hoc networks ... used, especially in the context of broad- cast authentication. Broadcast ing and multicasting are used widely in a variety of appli- cations in wireless ad hoc networks. Example applications include...

Ngày tải lên: 25/03/2014, 12:07

... Spatio-Temporal Opportunism in Ad Hoc Networks 241 8.5 Spatiotemporal-Spectral Opportunism in Ad Hoc Networks 247 8.6 Conclusions 250 9 Localization Techniques for Wireless Local Area Networks 255 9.1 Introduction ... important issues in wireless sensor networks is the data delivery service between sensors and the data collection unit (the sink). Although sensor networks and mobile ad hoc networks (MANETS) are similar ... Cataloging‑in‑Publication Data Wireless ad hoc networking : personal‑area, local‑area, and the sensory‑area networks / editors, Shih‑Lin Wu and Yu‑Chee Tseng. p. cm. ‑‑ (Wireless networks and mobile communications) Includes...

Ngày tải lên: 01/06/2014, 11:10

... in ad hoc wireless, networks. Ad hoc Netw. 4, 687–708 (2006). doi:10.1016/j.adhoc.2005.08.001 37. E Hamadani, V Rakocevic, A cross layer solution to address TCP, intra-flow performance degradation ... in wireless ad hoc networks TCP was designed for wired networks without consider- ing the complexity of wireless networks. With the advent of wireless technology TCP was also employed in wireless ... on wireless ad hoc networks, those readers who are interested in single-hop wireless networks are referred to [17]. The readers inter- ested in the surveys of TCP enhancement in wireless networks...

Ngày tải lên: 21/06/2014, 00:20

... signal-to-noise ratio, ad hoc network, coherence time, cooperative communication Introduction Ever-increasing demand for higher throughput and lower delay in wireless ad hoc networks led to an exten- sive ... protocol 1 for wireless ad hoc networks Murad Khalid 1* , Yufeng Wang 1 , Ismail Butun 1 , Hyung-jin Kim 2 , In-ho Ra 3 and Ravi Sankar 1 Abstract In this article, we address the goal of achieving ... article as: Khalid et al.: Coherence time-based cooperative MAC protocol 1 for wireless ad hoc networks. EURASIP Journal on Wireless Communications and Networking 2011 2011:3. Submit your manuscript...

Ngày tải lên: 21/06/2014, 03:20

... Romaszko and C. Blondia, “A MAC protocol for wireless ad hoc networks with power control,” in Proceedings of the Inter- national Workshop on Wireless Ad- hoc Networks (IWWAN ’05), no. 54, London, UK, ... layer misbehavior in ad hoc networks, ” in Proceedings of IEEE International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob ’06), pp. 116–123, Montreal, Canada, June 2006. [5] ... Radio 9th Computer Networking Conference, pp. 134–140, Ontario, Canada, September 1990. [7] S. Agarwal, R. H. Katz, S. V. Krishnamurthy, and S. K. Dao, “Distributed power control in ad- hoc wireless...

Ngày tải lên: 21/06/2014, 22:20

... 0; } RadioChannelManager ∗ rcm; double getFastFading() { return 1; } double getFastFading(FastFadingInfo ∗ ffi) { return 1; } double getSlowFading() { return 1; } double getSlowFading(SlowFadingInfo ∗ sfi) ... Journal on Wireless Communications and Networking 7 FreeSpacePathLoss InterfererNoiseInfo NoiseInfo ReceiverNoise RcmModule FastFading FastFadingInfo RadioChannelManager SlowFading SlowFadingInfo GroundBasedShadowing UwbInterfererNoise PathLoss PathLossInfo double ... hybrid wired /wireless ad hoc networks and the design of innovative radio access schemes. Details of the API allowing high- fidelity simulations by transmitting bits and bytes over the radio channel...

Ngày tải lên: 21/06/2014, 23:20

... cellular networks, have to be enforced in a distributed and collabora- tive fashion by the nodes in wireless ad hoc networks [3, 4]. Numerous MAC schemes have been proposed for wireless ad hoc networks, ... infrastructure-based wireless networks, such as cellular networks, a wireless ad hoc network is an autonomous system consisting of wireless hosts that do not rely on any fixed network infrastructure or central administration ... MAC sublayer for WLANs as well as wireless ad hoc networks. IEEE 802.11 is based on MACA [6] and MACAW [7]. Nevertheless, IEEE 802.11 is designed for WLANs and wireless ad hoc networks with omnidirectional...

Ngày tải lên: 21/06/2014, 23:20

... streaming over a multihop wireless ad hoc network. In a multihop wireless ad hoc network, the quality of transferring real-time video streams could be seriously degraded, since every intermediate ... the quality of video streams over multi-hop wireless ad hoc networks. Previous works on improving the quality of video streaming over a wireless ad hoc network include different aspects, bandwidth ... how to accurately estimate RTT in a multi-hop wireless ad hoc network was not addressed in [10]atall. In delivering video streams over wireless ad hoc net- works, most of the previous works focused...

Ngày tải lên: 21/06/2014, 23:20

... with only the last hop being wireless. Cellular phones and wireless networks using 802.11 (WI-FI) are examples of this. Ad hoc networks are another type of wireless networks. They are formed by ... capacity of wireless networks, ” IEEE Transactions on Information Theory,vol.46,no.2,pp. 388–404, 2000. [2] M. Grossglauser and D. N. C. Tse, “Mobility increases the ca- pacity of ad hoc wireless networks, ” ... throughput of ad hoc networks, ” IEEE Transactions on Communications, vol. 52, no. 11, pp. 1957–1968, 2004. [5] N. Bansal and Z. Liu, “Capacity, delay and mobility in wire- less ad- hoc networks, ”...

Ngày tải lên: 22/06/2014, 00:20

Ngày tải lên: 22/06/2014, 01:20

Ngày tải lên: 22/06/2014, 19:20