ad hoc networking with bonjour

... Journal on Wireless Communications and Networking [8] B Zhao, R Iyer Seshadri, and M C Valenti, “Geographic random forwarding with hybrid-ARQ for ad hoc networks with rapid sleep cycles,” in Proc ... ad hoc and sensor networks: Multihop performance,” IEEE Transactions on Mobile Computing, vol 2, no 4, pp 337–348, 2003 [7] M Zorzi and R R Rao, “Geographic random forwarding (GeRaF) for ad hoc ... distribution of entire network is two-dimensional Poisson with density ρ, then any region within the network will have a Poisson node distribution with density ρ The source and destination are separated...

Ngày tải lên: 23/06/2014, 00:20

... N C E S IN AD HOC NETWORKING Proceedings of the Seventh Annual Mediterranean Ad Hoc Networking Workshop, Palma de Mallorca, Spain, June 25-27, 2008 Edited by Pedro Cuenca Universidad de Castilla-La ... for Context-Aware ad- hoc Networking Applications 145 Y Venturini, V Coroama, T C M B Carvalho, M Naslund and M Pourzandi MAC Protocols No Ack in IEEE 802.1 l e Single-Hop Ad- Hoc VolP Networks ... citing this" chapter: Gu, Y., Prasad, R V., Niemegeers, i., 2008, in IFIP International Federation for information Processing, Volume 265, Advances in Ad Hoc Networking, eds Cuenca, P., Guerrero...

Ngày tải lên: 10/12/2013, 14:15

... and adequate power supplies (see Figure 2.1) Due to this routing paradigm, the 25 26 Wireless Ad Hoc Networking Sensor nodes To internet A B C Sink Users Application field Figure 2.1 An paradigm ... address field is employed in Zigbee for packet transmission If the IPv6 standard, with 128-bit addresses, is used, the effective payload is even less unless some header compression method is adopted ... Networks, pp 672–681, 2005 24 Wireless Ad Hoc Networking S Meguerdichian, F Koushanfar, M Potkonjak, and M.B Srivastava Coverage problems in wireless ad- hoc sensor networks In IEEE INFOCOM, vol...

Ngày tải lên: 01/06/2014, 11:10

... group membership, however, leads to additional overhead in this protocol The protocol proposed by the authors of [10] elects a group leader who then communicates with the RSU on behalf of the ... suffers the disadvantage of the overhead associated with the RL management required to authenticate group membership A solution suggested as a third approach breaks this linkability along with the ... signature-based BLS and GSIS dispense with the certificate because all group members agree on the group key Consequently, these two can avoid the additional overhead associated with certificate validation...

Ngày tải lên: 21/06/2014, 11:20

... “On the performance of ad hoc networks with beamforming antennas,” in Proceedings of the 2nd ACM International Symposium on Mobile Ad Hoc Networking and Computing (MobiHoc ’01), pp 95–105, Long ... schemes have been proposed for wireless ad hoc networks with directional antennas In principle, most of the proposed MAC protocols [11, 20–30] for ad hoc networks with directional antennas are based ... sensing for directional antennas in mobile ad hoc networks,” in Proceedings of the 3rd ACM International Symposium on Mobile Ad Hoc Networking and Computing (MobiHoc ’02), pp 183–193, Lausanne, Switzerland,...

Ngày tải lên: 21/06/2014, 23:20

... in ad hoc wireless networks,” in Mobile Computing, T Imielinski and H Korth, Eds., chapter 5, pp 153–181, Kluwer Academic Publishers, Norwell, Mass, USA, 1996 [2] C E Perkins and E M Royer, Ad- hoc ... Chen, and J.-P Sheu, “The broadcast storm problem in a mobile ad hoc network,” in Proceedings of the 5th Annual ACM/IEEE International Conference on Mobile Computing and Networking (MOBICOM ’99), ... approach for reducing broadcast storms in mobile ad hoc networks,” in Proceedings of the 56th IEEE Vehicular Technology Conference (VTC ’02), vol 2, pp 1036–1040, Vancouver, BC, Canada, September 2002...

Ngày tải lên: 22/06/2014, 19:20

... Mobile Ad Hoc Networking and Computing (MobiHoc ’01), pp 95–105, Long Beach, Calif, USA, October 2001 [17] R Ramanathan, J Redi, C Santivanez, D Wiggins, and S Polit, Ad hoc networking with directional ... using spatial multiplexing with directional antennas, ad hoc networking can be implemented in practical sized systems without experiencing performance degradation (compared with the individual link ... precisely, the nodes with coordinates (x + m, y) are identified with nodes with coordinates (x, y) for y = 1, 2, , m + and nodes with coordinates (x, m + y) are identified with nodes with coordinates...

Ngày tải lên: 22/06/2014, 19:20

... neighbors can know the broadcast, and they should refrain from initialize broadcasts to avoid collision The probability of only node S sending PILOT within the circular region with radius 2R is ∞ 3.4 ... between R and 2R cannot sense the broadcast and may broadcast during the period when sender S is broadcasting Therefore, we divide the whole circular region with radius 2R into two areas: the carrier ... same contention area with a radius of 100 m Totally, four TCP flows compete with each other with the source destination pairs as (0, 2), (5, 3), (6, 8), and (11, 9), respectively With the cross-topology,...

Ngày tải lên: 22/06/2014, 22:20

... (a2 ) Ca2 (a1 ) (2) Ca3 (Ad ) a2 a2 s = a1 a1 a2 s = a1 a2 a3 f1 a3 f1 + f2 a4 a4 f1 + f2 + f3 a5 t (1) Ad f1 + f2 + f3 + f4 = {M,a,f } m=1, ,M+1 f1 (3) Ad f1 + f2 (4) Ad a4 a5 t f1 + f2 + f3 ... impact of fading, we consider the (per node) uniform capacity Ru (recall Section 5.1), averaged over the distribution of fading To account for a fading margin, the average SNR at d0 with no interference ... [bps] on the wireless link between the set of nodes A j and j is SYSTEM MODEL Consider an ad hoc network with n single-antenna nodes, collected in the set N = [1, , n] Each node may want to...

Ngày tải lên: 22/06/2014, 22:20

... (a2 ) Ca2 (a1 ) (2) Ca3 (Ad ) a2 a2 s = a1 a1 a2 s = a1 a2 a3 f1 a3 f1 + f2 a4 a4 f1 + f2 + f3 a5 t (1) Ad f1 + f2 + f3 + f4 = {M,a,f } m=1, ,M+1 f1 (3) Ad f1 + f2 (4) Ad a4 a5 t f1 + f2 + f3 ... impact of fading, we consider the (per node) uniform capacity Ru (recall Section 5.1), averaged over the distribution of fading To account for a fading margin, the average SNR at d0 with no interference ... [bps] on the wireless link between the set of nodes A j and j is SYSTEM MODEL Consider an ad hoc network with n single-antenna nodes, collected in the set N = [1, , n] Each node may want to...

Ngày tải lên: 22/06/2014, 22:20

... units for other nodes Ad hoc network applications Here are three kinds of applications of the ad hoc concept: ad hoc linking, ad hoc networking and ad hoc association Ad hoc linking is a feature ... shortage of paradigms in computer networking Ad hoc networking, which is the subject of the current book, is the latest Despite the fact that it is less than a decade old, it is already becoming ... Principles of Ad Hoc Networking Principles of Ad Hoc Networking Michel Barbeau and Evangelos Kranakis Carleton University, Canada Copyright  2007 John Wiley & Sons Ltd,...

Ngày tải lên: 04/07/2014, 06:20

... evaluation in ad hoc networks Though these studies address various transmission scenarios and performance metrics of ad hoc networks, most of them focus only on the capacity of ad hoc networks ... affecting the performance of ad hoc networks Taxonomy for performance evaluation of ad hoc networks is presented in Figure 2.1 In the taxonomy, we classify general ad hoc networks into two categories, ... source-destination pair in the ad hoc network communicates through a common broadcast channel using omni-directional antennas with the same transmission range The topology of an ad hoc network can thus...

Ngày tải lên: 02/10/2015, 12:56

... 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 Schemes for Ad Hoc Networks ... 1.1 Introduction to Ad Hoc Networks GSM, GPRS or even 3G [2] With further advances in technology, mobile ad hoc networks will be implemented in various situations A mobile ad hoc network can be ... can operate together 1.1 Introduction to Ad Hoc Networks 1.1.3 Routing Schemes for Ad Hoc Networks Both the advantages and the challenges of mobile ad hoc networks are due to the mobility of nodes,...

Ngày tải lên: 10/11/2015, 11:07

Ngày tải lên: 13/09/2012, 11:16

... có kênh truyền Mạng ad hoc • Mạng ad hoc đặc trưng đặc điểm sau: – Một tập hợp host hình thành mạng ad hoc – Các host truyền tin sử dụng kênh không dây – Các nốt mạng ad hoc sử dụng nốt khác ... động chuyển dịch vị trí Mạng ad hoc • Tô pô mạng ad hoc đồ thị đỉnh host, cạnh hai host biểu thị phạm vi liên lạc hai host • Tên khác mạng ad hoc MANET (Mobile Ad hoc NETwork) • MANET xác định ... Sóng radio (Radio Frequency – RF) – Tia hồng ngoại Tôpô mạng WLAN • • Khối mạng 802.11 BSS (Basic Service Set) bao gồm nhóm trạm truyền thông với BSS gồm có hai loại: Independent BSS (Ad hoc) ...

Ngày tải lên: 13/09/2012, 11:16

... TNFα expression in sputum and peripheral blood of CF patients with acute exacerbation Combination with intravenous antibiotics had no additional effect In our study we used fucose/galactose solution ... Moreover, patients with exacerbation but not patients with stable disease were investigated Inhalation with fucose/galactose has never been used before in a clinical trial with CF patients For ... findings in this report show that inhalation with fucose/galactose solution could reduce P aeruginosa in sputum of adult CF patients with chronic infection with this bacterium It was well tolerated...

Ngày tải lên: 03/11/2012, 11:48

... QUAN VỀ AD HOC NETWORK Vũ Huy Cường- ĐT3- K49 Đánh giá thông lượng giao thức định tuyến mạng Ad hoc Chương trình bày khái niệm tổng quan mạng Ad hoc, ứng dụng nhiều lĩnh vực sống mạng Ad hoc Đồng ... ad hoc networks with respect to more traditional wireless networks, such as cellular networks and wireless LAN, in which nodes communicate with each other through BS Some challenges that ad hoc ... Ad hoc 1.3 NHỮNG THÁCH THỨC ĐỐI VỚI MẠNG AD HOC 1.3.2 Chi phí cho việc sử dụng tần số Hầu hết các mạng Ad hoc thử nghiệm hiện đều dựa băng tần ISM Để ngăn ngừa nhiễu, mạng Ad...

Ngày tải lên: 16/11/2012, 16:10

... Internetwork Operating System Internet Protocol Local Area Network Link-State Advertisement Mobile Ad Hoc Networks Multicast Ad hoc On Demand Distance Vector Multicast Open Shortest Path First Maximum ... In addition to having the lowest control overhead compared with ODMRP and MAODV [10], PUMA provides a very tightly bounded threshold of control overhead In other words, the controls overhead ... - CHAPTER 4: AN ADAPTIVE CORE SELECTION BASED MULTICAST ROUTING PROTOCOL FOR MANETs 4.1 Introduction Mobile ad hoc networks (MANET) consist of mobile computing devices with radio transmission...

Ngày tải lên: 23/11/2012, 15:03

... 1: Giới thiệu mạng ad- hoc, tầm quan trọng, tính bật thách thức xây dựng mạng ad- hoc Chương 2: Mô hình hóa mạng ad- hoc, mô hình kênh truyền không dây, xây dựng topology mạng ad- hoc dựa đồ thị truyền ... mạng ad- hoc Về bản, mạng ad- hoc kết nối tất thiết bị truyền thông không dây mà không sử dụng sở hạ tầng cố định Rất nhiều vấn đề đặt tạo mạng ahoc tối ưu Một vấn đề cần giải làm để trì mạng ad- hoc ... mạng ad- hoc Trong chương này, giới thiệu mô hình mạng ad- hoc không dây đơn giản áp dụng rộng khắp.Mô hình áp dụng cho mạng có kiểu tương tự mạng ad- hoc 2.1 Kênh truyền không dây Những node mạng ad- hoc...

Ngày tải lên: 23/11/2012, 15:04