Density aware hop count localization (DHL) algorithm in unevenly distributed wireless sensor networks

... 2.1 WIRELESS SENSOR NETWORKS 2.2 LOCALIZATION IN WIRELESS SENSOR NETWORKS 2.2.1 Applications of Localization in Wireless Sensor Networks 2.2.2 Localization Constraints in Wireless ... overheads in DHL Lastly, Section 3.4 concludes Chapter 3.1 Density- aware Hop- Count Localization (DHL) Algorithm In the Density- aware Hop- count Locali...

Ngày tải lên: 04/10/2015, 10:26

... different indoor multipath environments 3.1 INDOOR COOPERATIVE LOCALIZATION BOUNDS Problem formulation Based on the ranging models of Section 2, we derive the G-CRLB for cooperative localization in indoor ... and localization accuracy Therefore, there is a need to analyze the impact of these channel limitations on the performance of cooperative localization in indoor...

Ngày tải lên: 22/06/2014, 06:20

... trellis using either Viterbi decoding, MAP decoding, or sequential decoding Another categorization is based on the decoding algorithms: (1) noniterative decoding algorithms, such as syndrome decoding ... n ≥ [35] ERROR CONTROL CODING Error control coding (ECC) introduces redundancy into an information sequence u of length k by the addition of extra parity bits, based on various...

Ngày tải lên: 22/06/2014, 22:20

... world In the paper, we presented an analytical modeling to formulate the hop-distance relationship considering the quasi-UDG model Senor nodes are randomly distributed in a circular region according ... developed hop-distance relationship considering the quasi-UDG model in WSN localizations We designed a LS-based localization algorithm using our developed relationship...

Ngày tải lên: 20/06/2014, 22:20

... thống thương mại, hỗ trỡ hiệu cho trình định Đồ án Localization in the wireless sensor networks 10 Đồ án Localization in the wireless sensor networks CHƯƠNG II ỨNG DỤNG MẠNG CẢM BIẾN KHÔNG DÂY ... nút localized 28 Đồ án Localization in the wireless sensor networks Hình 4.1 Thuật toán Min-Max P = [min(x i +d i ),min(yi +d i )] P2 = [max(x i -d i ),min(yi +d...

Ngày tải lên: 27/05/2014, 11:41

... respectively Then, the cluster-heads and the sink node distribute the schedules to their clustered nodes and the cluster-heads in the network, respectively In the case of the cluster-heads, the schedules ... article as: Choi and Lee: Energy consumption and lifetime analysis in clustered multi-hop wireless sensor networks using the probabili...

Ngày tải lên: 20/06/2014, 22:20

... at home This requires that the routing algorithm be able to self-adapt to link instability Using wireless sensor networks in home automation is prevalent and cost effective A routing algorithm for ... transmission, in this paper we present a new routing algorithm for WSNHA, namely, WSNHA-LBAR (location-based selfadaptive routing for WSNHA) Instead of using flo...

Ngày tải lên: 21/06/2014, 05:20

... Locator Sensor Attacker S3 L5 L2 Locator Sensor Attacker (a) (b) Figure 1: The attack scenarios in WSN (a) Attacker model in range-based localization; (b) Attacked locators with temporal and spatial ... and Z Wang, A secure localization approach against wormhole attacks using distance consistency,” EURASIP Journal on Wireless Communications and Networking, vol 2010, 11 pages...

Ngày tải lên: 21/06/2014, 11:20

... relevant prior work in wireless sensor network broadcast security 2.1 Operating Environment and Threat Model We assume a single-hop wireless sensor network in which a single source of broadcast data, ... data in a wireless sensor network Our work in this paper is restricted to single-hop networks There are two reasons for this (i) First, broadcast secrecy is a...

Ngày tải lên: 21/06/2014, 11:20

... S Boyd, and S Lall, “A scheme for robust distributed sensor fusion based on average consensus, ” in Proceedings of the 4th International Symposium on Information Processing in Sensor Networks ... failure, and other practical conditions when utilizing the DAC algorithm in wireless sensor networks References [1] R Olfati-Saber, J A Fax, and R M Murray, Consensus...

Ngày tải lên: 21/06/2014, 16:20

... Mahonen, Combining Particle Filtering with Cricket System for Indoor Localization and Tracking Services Personal, Indoor and Mobile Radio Communications, 2007, in PIMRC 2007 IEEE 18th International ... Bayesian filtering for indoor localization and tracking in wireless sensor networks Anup Dhital1,2 , Pau Closas∗3 and Carles Fern´ ndez-Prades3 a Universita...

Ngày tải lên: 21/06/2014, 17:20

... Mahonen, Combining Particle Filtering with Cricket System for Indoor Localization and Tracking Services Personal, Indoor and Mobile Radio Communications, 2007, in PIMRC 2007 IEEE 18th International ... Bayesian filtering for indoor localization and tracking in wireless sensor networks Anup Dhital1,2 , Pau Closas∗3 and Carles Fern´ ndez-Prades3 a Universita...

Ngày tải lên: 21/06/2014, 23:20

... link costs IL,B-Sink , IL,D-Sink , and IL,J-Sink , and then add their link costs to ASink to form CB-Sink , CD-Sink , and CJ-Sink , respectively Nodes B, D, and J store these information in their ... carefully defining link cost as a function of receiving and transmission power using that link The transmission-value is set initially same for all the nodes The link cost between nodes u...

Ngày tải lên: 21/06/2014, 23:20

... Cort´ s, and A Brandwajn, e Exploring landmark placement strategies for self localization in wireless sensor networks,” 2006, http://rp.lip6.fr/∼benbadis/landmarks placement/ ... routing performance, avoiding the need of equally distant landmark placement We also notice again that as the number of landmarks increases up to a certain threshold, considerable performance ga...

Ngày tải lên: 22/06/2014, 00:20

... Figure 9: Finding a BACDS in the network in Figure 6(a) (a) SET+ and SET− in G, set list(i) or listgray (i) of each node i are listed above (b)–(e) Finding COV in SET− (f) Finding CDS+ in SET+ ... another dominator node u in N(v) to connect the original dominating set, a spanning tree rooted at u can be formed among the nodes in N(v) Nodes in this spanning tree become the new...

Ngày tải lên: 22/06/2014, 19:20