Adaptive antenna adjustment for 3d urban wireless mesh networks
Adaptive antenna adjustment for 3d urban wireless mesh networks
... nodes that are equipped with steerable omnidirectional antenna Designed for 3D wireless mesh networks, these nodes adaptively adjust the antenna orientation to improve the connectivity and the ... 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...
báo cáo hóa học:" Research Article On Optimizing Gateway Placement for Throughput in Wireless Mesh Networks" docx
... than one mesh routers and the number of mesh routers is smaller than that of mesh clients Mesh routers constitute a wireless mesh backbone providing a wireless infrastructure for mesh clients In ... reconstructing the table of non-overlapping interfering groups by adding the potential location into the consideration; (3) computing the sharing efficiency for the potential...
Báo cáo hóa học: "Research Article A Cross-Layer Routing Design for Multi-Interface Wireless Mesh Networks" pptx
... F Akyildiz and X Wang, A survey on wireless mesh networks,” IEEE Communications Magazine, vol 43, no 9, pp 22–30, 2005 [3] A Adya, P Bahl, J Padhye, A Wolman, and L Zhou, A multiradio unification ... placed in a 500 m × 500 m area (Figure 7) The simulation parameters are the same as the uniform topology The throughputs are almost similar in these routing protocols at low traffic lo...
Báo cáo hóa học: " A novel cross-layer mesh router placement scheme for wireless mesh networks" pptx
... omni-directional or directional antenna for the backbone of the WMN A directional antenna (also called a sectored antenna) is different from an omni-directional antenna in that it only transmits the signal ... International Conference on Advanced Information Networking and Applications, 465–472 (2010) F Xhafa, C Sanchez, L Barolli, R Miho, An annealing approach to router nodes placem...
Báo cáo hóa học: " Hidden node aware routing method using highsensitive sensing device for multi-hop wireless mesh network" docx
... this article as: Parvin and Fujii: Hidden node aware routing method using high-sensitive sensing device for multi-hop wireless mesh network EURASIP Journal on Wireless Communications and Networking ... http://jwcn.eurasipjournals.com/content/2011/1/114 Page of 17 Sensing area for high sensitive sensing device with low sensing level (-92dBm) Hidden node...
Báo cáo hóa học: " Research Article Texture Classification for 3D Urban Map" pdf
... resolution is found for each texture, and the texture at the resolution is loaded The appropriate resolution is determined for each texture image by two criteria “Level” and “Class” The former considers ... the texture is estimated by using d, S, and r The “look” of the texture is evaluated by (1) the ratio of sharp edges in the texture and (2) the number of colors used in the...
Wireless Mesh Networks Part 1 pptx
... in Wireless Backbone Mesh Networks ⎡ A 11 ( ε ) ε 12 A 12 ⎢ A 22 ( ε ) ε A Aε = ⎢ 21 21 ⎢ ⎢ ⎢ε N 1A N ε N A N ⎣ ⎡ W 11 ( ε ) ε 12 W12 ⎢ W22 ( ε ) ε W Wε = ⎢ 21 21 ⎢ ⎢ ε N WN ε N WN ⎢ ⎣ 13 ... Technical Issues in Wireless Mesh Networks 14 9 Chapter On the Capacity and Scalability of Wireless Mesh Networks 15 1 Yonghui Chen Chapter The Performance of Wireless Me...
Wireless Mesh Networks Part 2 doc
... threshold 4 Wireless Mesh Networks 32 Wireless Mesh Networks 13 concrete slab block brick plaster board window door Table Attenuation factors of five obstacle types 2. 2 AP allocation problem 2. 2.1 Objectives ... 6538-65 42, ISBN: 07695 -28 05-8, Glasgow, Scotland, 20 07 28 Wireless Mesh Networks Wang, J.; Fang, Y & Wu, D (20 06) A power-saving multi-radio multi-channe...
Wireless Mesh Networks Part 3 doc
... 100.0 50.0 0.0 48 44 40 36 32 28 24 23 22 21 H Proposal Comparison Fig 12 Average throughputs for different bandwidth limits 30 58 Wireless Mesh Networks Wireless Mesh Networks 60 150.0 40 100.0 ... Their 400.0 30 0.0 200.0 100.0 0.0 Instance Proposal Comparison Fig 16 Average throughputs for random networks 10 32 60 Throughput (Mbps) Wireless Mesh Networks Wireless...
Wireless Mesh Networks part 5 pdf
... Random medium access schemes 0.4 Win =50 Win=100 Win= 150 Win=200 Win= 250 Unified Throughput 0. 35 0.3 0. 25 0.2 0. 15 0.1 0. 05 0 50 100 150 200 250 300 350 400 450 50 0 Number of Transmssions Fig The ... 2006) and AODV-ST (Ramachandran, K et al., 20 05) 110 Wireless Mesh Networks Mesh Router Static Mesh Client Mobile Mesh Client Fig Infrastructure wireless mesh netwo...
Wireless Mesh Networks part 8 pot
... 166 Wireless Mesh Networks Wireless Mesh Networks STA4 STA2 STA1 STA3 MAP STA5 MAP MP MP MP MP: Mesh Point MPP: Mesh Portal MAP: Mesh Access Point STA: Station MPP Wired infrastructure Fig A wireless ... the transmission range of the nodes 1 78 16 Wireless Mesh Networks Wireless Mesh Networks d12 d13 d14 d15 d9 c6 c7 c8 d10 d7 c3 c4 c5 d8 d5 c0 c1 c2 1.0 0 .8...
Wireless Mesh Networks part 9 pot
... provided by a combined multiple recursive generator (CMRG) (L’Ecuyer, 199 9) 10 194 Wireless Mesh networks Wireless Mesh Networks Essentially, a master process (Akmaster) is started on a processor, ... of VoIP Over Wireless Mesh Networks Pursuing Credibility in Performance Evaluation of VoIP Over Wireless Mesh Networks 191 – Sensitivity analysis, that is, the investig...
Wireless Mesh Networks part 11 ppt
... communication overhead 248 Wireless Mesh Networks Secure Routing Protocols for WMNs Extensive work has been done in the area of secure unicast routing in multi-hop wireless networks (Hu et al., 2002a; ... varying levels of network privileges to a user This is particularly common in 802 .11 WiFi networks However, today’s MAC protocols (802 .11) and network interface cards not pro...
Báo cáo hóa học: "Adaptive QoS provision for IEEE 802.16e BWA networks based on cross-layer design" ppt
... framework for adaptive QoS provision cross-layer -based design Our major QoS provision mechanism concerns are about connection-level QoS provision through dynamic RR and AC, as well as packet-level QoS ... best QoS performance for nrtPS connections, because approach1 has no QoS consideration, approach2 causes the real-time connections preempting too much bandwidth fo...
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