vimloc for large scale wireless mesh networks

... smaller than that of mesh clients Mesh routers constitute a wireless mesh backbone providing a wireless infrastructure for mesh clients In each cell, mesh clients are connected to the mesh router like ... infrastructure wireless mesh networks, ” IEEE Transactions on Mobile Computing, vol 7, no 8, pp 1011–1024, 2008 J Robinson and E W Knightly, “A performance study of deployment factors in wireless mesh networks, ” ... non-asymptotic throughput derivation for WMNs The WMN model indicates that all wireless mesh routers contend for the same wireless channel of capacity W1 in EURASIP Journal on Wireless Communications and...

Ngày tải lên: 21/06/2014, 18:20

... routing protocol Internet Mesh gateway Mesh routers Mesh backbone/backhaul Mesh clients Conventional clients Wired connection Wireless connection Figure 1: Wireless Mesh Networks 2.1 Transmission ... accounts for interference among the successive links of a path Although ETX does well in single-radio wireless ad hoc network, it does not perform well in multiradio and multichannel wireless mesh networks ... “802.11 TGs simple efficient extensible mesh (SEE -Mesh) proposal,” IEEE802.11 document 05/0562r0, 2005 [2] I F Akyildiz and X Wang, “A survey on wireless mesh networks, ” IEEE Communications Magazine,...

Ngày tải lên: 21/06/2014, 23:20

... consists of mesh gateways, mesh routers and mesh clients as illustrated in Fig 2.1 [3] The mesh gateways make it possible for WMNs to integrate with any Figure 2.1: Wireless Mesh Networks general ... antenna systems 2.1 Wireless Mesh Networks In this section, we discuss the motivation and characteristics of general WMNs followed by an introduction of MIT Roofnet Wireless mesh networks are a natural ... [3] I F Akyildiz, X Wang, and W Wang Wireless mesh networks: a survey Computer Networks, 47(4):445–487, 2005 [4] J Bicket Bit-rate selection in wireless networks Master’s thesis, MIT, 2005 [5]...

Ngày tải lên: 26/09/2015, 10:59

... decentralized wireless networks, ” IEEE Transactions on Wireless Communications, vol 7, no 12, pp 5408–5419, 2008 [22] M Ebrahimi, M A Maddah-Ali, and A K Khandani, “Throughput scaling laws for wireless networks ... power control for wireless ad hoc networks, ” IEEE Transactions on Wireless Communications, vol 3, no 1, pp 74–85, 2004 [11] I Katzela and M Naghshineh, “Channel assignment schemes for cellular ... in wireless data networks, ” IEEE Transactions on Communications, vol 50, no 2, pp 291–303, 2002 [16] J Huang, R A Berry, and M L Honig, “Distributed interference compensation for wireless networks, ”...

Ngày tải lên: 21/06/2014, 08:20

... framework for multihop multicast in wireless mesh networks, ” IEEE Journal on Selected Areas in Communications, vol 24, no 11, pp 2092–2102, 2006 [6] C S R Murthy and B S Manoj, Ad Hoc Wireless Networks ... distributed and cooperative link scheduling (DCLS) algorithm which is especially useful for large- scale multihop wireless networks This algorithm partitions a set of links into several subsets of links, ... long as λl is large enough, upon convergence, Pl (i) (k) for each l becomes nonzero for some (at least one) of k = 1, 2, , K, and zero for the rest of k = 1, 2, , K Then for each k, there...

Ngày tải lên: 22/06/2014, 06:20

... suitable for different networks, such as ad hoc networks, sensor networks, and stationary networks, such as WMNs Routing has been primarily designed to maintain connectivity for ad hoc networks ... framework for multihop multicast in wireless mesh networks IEEE J Sel Areas Commun 24(11), 2092–2103 (2006) S Kim, X Wang, M Madihian, Cross-layer design of wireless multihop backhaul networks ... capacity of wireless mesh networks IEEE Wireless Commun Mag 10(5), 8–14 (2003) doi:10.1109/MWC.2003.1241089 KD Lee, VCM Leung, Fair allocation of subcarrier and power in an OFDMA wireless mesh network...

Ngày tải lên: 20/06/2014, 22:20

... W Wang, Wireless mesh networks: a survey,” Computer Networks, vol 47, no 4, pp 445–487, 2005 [3] J Lei, R Yates, L Greenstein, and H Liu, “Mapping link SNRs of real-world wireless networks onto ... Infrastructures for the Development of Networks and Communities (TRIDENTCOM ’05), pp 130–135, Trento, Italy, February 2005 [5] J Lei, R Yates, L Greenstein, and H Liu, “Mapping link SNRs of wireless mesh networks ... versus log-distance for all nodeto-node link gains inside the Crawford Hill Building (Figure 11) Most of the points near the top are for LOS paths gain estimation errors for most cases are likely...

Ngày tải lên: 21/06/2014, 23:20

... address routing for scalable ad hoc and mesh networks, ” IEEE/ACM Transactions on Networking, vol 15, no 1, pp 119–132, 2007 [2] A Wheeler, “Commercial applications of wireless sensor networks using ... addressing scheme for wireless multi-hop networks, ” Tech Rep., Mitsubishi Electric Research Laboratories, Cambridge, Mass, USA, 2005 [5] H.-I Jeon, “Efficient address assignment for mesh nodes in real-time,” ... will be allocated to a new node Therefore, it will also be acceptable for a parent (including ZC) to have grandchildren before the address segment reserved for its children is used up In other...

Ngày tải lên: 21/06/2014, 23:20

... (wz,t,i,j ) end for wz,t,i+1,0 ← wz,t,i,P end for end for Collect/stack weights W ← [w1,t,S,0 | |wZ,t,S,0 ]T Select top K feature columns of W by norm and for k ← K v[k] = end for end for return ... learning for SMT not only to large feature 18 sets but also to large sets of parallel training data Since inference for SMT (unlike many other learning problems) is very expensive, especially on large ... 1}: Decode ith input with wt,i,0 for all pairs xj , j ∈ {0 P − 1}: wt,i,j+1 ← wt,i,j − η lj (wt,i,j ) end for wt,i+1,0 ← wt,i,P end for wt+1,0,0 ← wt,I,0 end for return T T wt,0,0 t=1 While...

Ngày tải lên: 19/02/2014, 19:20

... translations—or applying automatic techniques to large- scale parallel corpora where data sparsity poses a problem for lowfrequency terms Data sparsity is also an issue for more general state-of-the-art bilingual ... structure in large- scale ontology translation In Proceedings of the 11th Annual Conference of the European Association for Machine Translation Oslo, Norway Our thanks to Doug Oard for his contribution ... of the Third Asian Conference for Information Technology in Agriculture Beijing, China: Chinese Academy of Agricultural Sciences (CAAS) and Asian Federation for Information Technology in Agriculture...

Ngày tải lên: 08/03/2014, 02:21

... system for automatically acquiring verbal, nominal and adjectival subcategorization and associated frequency information from English corpora, which can be used to build large- scale lexicons for ... Figure 4: Pattern for frame adj-obj -for- to-inf adj-obj -for- to-inf (|These:1_DD2| |example+s:2_NN2| |of:3_IO| |animal:4_JJ| |senses:5_NN2| |be+:6_VBR| |relatively:7_RR| |easy:8_JJ| |for: 9_IF| |we+:10_PPIO2| ... which easy[8] occurs as a complement The first (PP)-complement is for us, as indicated by ncmod (for[ 9] easy[8] we+[10]), with for as PFORM and we+ (us) as NP The second complement is represented by...

Ngày tải lên: 17/03/2014, 04:20

Ngày tải lên: 19/03/2014, 00:20

... 368 s for ours) and 7∼12 times faster for decoding (2.881 ms for M ALLET, 5.028 ms for C RF ++, and 0.418 ms for ours) This result demonstrates that learning and decoding CRFs for large- scale ... performs 5∼50 times faster for training (1,774 s for M ALLET, 18,134 s for C RF ++, Experiment We evaluated our method on six large- scale natural language data sets (Table 1): Penn Treebank3 for ... the forward-backward procedure to calculate marginals (Sutton and McCallum, 2006) We formally describe here an efficient calculation of α and β recursions for the forwardbackward procedure The forward...

Ngày tải lên: 23/03/2014, 17:20

... constant dimension for each vector, its runtime is linear in the number of vectors, so detection can scale to large logs yn = PPT y = Cn y, where P = [v1 , v2 , , vk ], is formed by the first ... information for automatic analysis of console logs, and is widely used in prior work [17, 11] Identifying the message type and extracting the message variables are crucial preprocessing steps for ... when exceptional behavior happens, and therefore Approach There are four steps in our approach for mining console logs We first extract structured information from console logs By combining logs...

Ngày tải lên: 30/03/2014, 16:20

... a separate clustering for each word position in a trigram model In the experimental evaluation, the authors observe the largest improvements using a specific clustering for the last word of each ... those sets of clusters for which N (w, c) > or N (c, w) > for a word w about to be exchanged, both of which can be calculated efficiently when exchanging a word The algorithm scales linearly in the ... Nc ))) When using large corpora with large numbers of bigrams the number of required updates can increase pre and towards the quadratic upper bound as Nc suc Nc approach Nc For a more detailed...

Ngày tải lên: 31/03/2014, 00:20

... service for Internet applications In Proc ACM SIGCOMM’01, San Diego, CA, Aug 2001 25 P F Tsuchiya The landmark hierarchy: a new hierarchy for routing in very large networks In SIGCOMM’88, Stanford, ... perform experiments with large networks of Pastry nodes, we also implemented a network emulation environment, permitting experiments with up to 100,000 Pastry nodes All experiments were performed ... so forth Results are shown for the three different protocols for initializing a new node’s state, with (“Estimation”) and without (“Standard”) the heuristic mentioned in Section 2.5, and for...

Ngày tải lên: 28/04/2014, 13:40

... Technical Issues in Wireless Mesh Networks 149 Chapter On the Capacity and Scalability of Wireless Mesh Networks 151 Yonghui Chen Chapter The Performance of Wireless Mesh Networks with Apparent ... Management Service (VIMLOC) for Large- Scale Wireless Mesh Networks 209 J Mangues-Bafalluy, M Requena-Esteso, J Núñez-Martínez and A Krendzel Chapter 11 Secure Routing in Wireless Mesh Networks 237 Jaydip ... Algorithms for Scalable Wireless Internet-Access Mesh Networks Nobuo Funabiki Chapter Performance Analysis of MAC Protocols for Location-Independent End-to-end Delay in Multi-hop Wireless Mesh Networks...

Ngày tải lên: 20/06/2014, 12:20

... considered as a general framework for the wireless 30 Wireless Mesh Networks Wireless Mesh Networks Internet GW GW AP GW host Fig An WIMNET topology Internet-access mesh network Actually, WIMNET ... Algorithms for Scalable Wireless Internet-Access Mesh NetworksScalable Wireless Internet-Access Mesh Networks Access-Point Allocation Algorithms for 37 Fig AP allocations with three GW positions for ... point, we regard that the wireless link from its source can exist to this point if the strength is larger than the threshold 4 Wireless Mesh Networks 32 Wireless Mesh Networks 13 concrete slab...

Ngày tải lên: 20/06/2014, 12:20

... 1086–1092 34 62 Wireless Mesh Networks Wireless Mesh Networks Farag, T., Funabiki, N & Nakanishi, T (2009) An access point allocation algorithm for indoor environments in wireless mesh networks, IEICE ... throughput for Access-Point Allocation Algorithms for Scalable Wireless Internet-Access Mesh NetworksScalable Wireless Internet-Access Mesh Networks Access-Point Allocation Algorithms for (a) instance ... Allocation Algorithms for Scalable Wireless Internet-Access Mesh NetworksScalable Wireless Internet-Access Mesh Networks Access-Point Allocation Algorithms for 17 45 3.4 Simulation results for dependability...

Ngày tải lên: 20/06/2014, 12:20

... and AODV-ST (Ramachandran, K et al., 2005) 110 Wireless Mesh Networks Mesh Router Static Mesh Client Mobile Mesh Client Fig Infrastructure wireless mesh network As evinced in (Chen, J et al., 2006) ... allocation of CCC’s data channels Since mesh has been employed in Wireless Personal Area Networks (WPAN), Wireless Local Area Networks (WLAN), Wireless Metropolitan Area Networks (WMAN), corresponding ... Multi-radio Wireless Mesh Networks Proceedings of IEEE GLOBECOM 2006, pp 1-5, San Francisco, California, USA, Nov.-Dec 2006 IEEE 802.11-1999 (R2003), Information Technology-Telecommunications and Information...

Ngày tải lên: 20/06/2014, 12:20