performance analysis of wireless ad hoc networks
Stochastic optimal control and performance analysis of wireless ad hoc networks
... é ểệ ỉ ẹì ì ễểé í ệ ềỉ Use Markov Decision Process Single-Agent: basic MDP, SMDP, HSMDP Mobile Ad Hoc Network Multi-Agent: DEC-POMDP How to Achieve Stability? How to Control & Optimize? How to ... ì
ìì ẵ ìẹẹ ệ ị ì ễỉ ệ Wireless Queueing Model for time-varying channel & topology Assumption: Channel State & Topology State Processes as Irreducible Aperiodic Markov Chain Wireless Queue Scheduling ... Other Contributions: Decentralized Model-free Algorithm, Handle Partial Observability & Locality of Interaction ỉ ểềì ề ỉ ểềá ỉ ểềỉệểéé ểẹ ỉệ èể ỉ ệìỉ ìỉ é ỉí ề ề ề ỉ ệ ỉ ề ế é ỉí ểề ỉ ểệì ỉ...
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Báo cáo hóa học: " Research Article Capacity of Wireless Ad Hoc Networks with Opportunistic Collaborative Communications" pptx
... “The capacity of wireless networks, ” IEEE Transactions on Information Theory, vol 46, no 2, pp 388–404, 2000 [2] S Toumpis and A J Goldsmith, “Capacity regions for wireless ad hoc networks, ” IEEE ... Qin and R S Blum, “Capacity of wireless ad hoc networks with cooperative diversity: a warning on the interaction of relaying and multi-hop routing,” in Proceedings of IEEE International Conference ... [5] S Toumpis and A J Goldsmith, Performance, optimization, and cross-layer design of media access protocols for wireless ad hoc networks, ” in Proceedings of IEEE International Conference on...
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Báo cáo hóa học: " Research Article Capacity of Wireless Ad Hoc Networks with Opportunistic Collaborative Communications" pdf
... “The capacity of wireless networks, ” IEEE Transactions on Information Theory, vol 46, no 2, pp 388–404, 2000 [2] S Toumpis and A J Goldsmith, “Capacity regions for wireless ad hoc networks, ” IEEE ... Qin and R S Blum, “Capacity of wireless ad hoc networks with cooperative diversity: a warning on the interaction of relaying and multi-hop routing,” in Proceedings of IEEE International Conference ... [5] S Toumpis and A J Goldsmith, Performance, optimization, and cross-layer design of media access protocols for wireless ad hoc networks, ” in Proceedings of IEEE International Conference on...
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Báo cáo hóa học: " A survey of performance enhancement of transmission control protocol (TCP) in wireless ad hoc networks" pptx
... challenges TCP faces in wireless ad hoc networks Section presents a survey of the approaches available to improve the performance of TCP in wireless ad hoc networks and provides taxonomy of these approaches ... TCP in wireless ad hoc networks TCP was designed for wired networks without considering the complexity of wireless networks With the advent of wireless technology TCP was also employed in wireless ... 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...
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Implementation and performance study of opportunistic network coding in 802 11 based wireless ad hoc networks using qualnet
... the performance of opportunistic network coding in wireless mobile ad- hoc networks In this thesis we propose to first study and investigate the performance behavior and key control parameters of ... impact of control message on the performance of opportunistic network coding scheme We then use the findings for further study of network coding scheme on large scale wireless ad- hoc networks ... (P2P) file distribution networks to wireless ad- hoc networks, from the improvement of network capacity to increase of network security 1.5 Thesis Organization The rest of this thesis is organized...
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Báo cáo hóa học: " Research Article On the Throughput Capacity of Large Wireless Ad Hoc Networks Confined to a Region of Fixed Area" pptx
... 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, ” ... “Delay-limited 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 wireless ad- hoc networks, ” in ... constrained ad- hoc networks, ” in Proceedings of the 23rd Conference of the IEEE Communications Society (INFOCOM ’04), vol 1, pp 443–453, Hong Kong, March 2004 [11] H Zhang and J C Hou, “Capacity of wireless...
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Báo cáo hóa học: " On the Geometrical Characteristics of Three-Dimensional Wireless Ad Hoc Networks and Their Applications" pptx
... local topological status of the wireless ad hoc network To a certain extent, the node locations and their corresponding degrees would affect the configuration of the wireless ad hoc network and even ... with that of the simulation NETWORK CAPACITY As mentioned above, the max-flow capacity is another important parameter on the performance of network However, in the case of wireless ad hoc networks, ... Letaief, “On the geometrical characteristic of wireless ad hoc networks and its application in network performance analysis, ” to appear in IEEE Transactions on Wireless Communications [6] J Orriss and...
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Báo cáo hóa học: " Improving TCP Performance over Wireless Ad Hoc Networks with Busy Tone Assisted Scheme" pdf
... protocol for improving TCP performance on multihop wireless ad hoc networks, ” in Proceedings of the 7th International Symposium on Modeling Analysis and Simulation of Wireless and Mobile Systems ... problem in 802.11-based wireless ad hoc networks was first reported in [1], and it was further investigated in [2] The TCP unfairness problem in multihop wireless ad hoc networks was reported in ... source routing in ad hoc wireless networks, ” in Mobile Computing, chapter 5, pp 153–181, Kluwer Academic, Norwell, Mass, USA, 1996 R K Jain, The Art of Computer Systems Performance Analysis, John...
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On applying network coding to wireless ad hoc networks a study of robustness, efficiency and cross layer synergy
... dynamic nature of data flows in a network 17 2.1.1 Robustness in wireless ad hoc networks In recent years, a number of routing protocols have been designed for wireless ad hoc networks Many routing ... wireless networks are also very useful for wireless ad hoc networks, so we will also include them in the investigation 2.1.1.1 Routing Structure Generally, routing structure for wireless ad hoc ... connections to wireless ones Yet these advances are based on infrastructural topologies where all wireless terminals connect to a single gateway A wireless ad hoc network is a collection of wireless...
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WIRELESS AD-HOC NETWORKS docx
... Section Comparison of the Maximal Spatial Throughput of Aloha and CSMA in Wireless Ad- Hoc Networks Comparison of the Maximal Spatial Throughput of Aloha and CSMA in Wireless Ad- Hoc Networks http://dx.doi.org/10.5772/53264 ... r Comparison of the Maximal Spatial Throughput of Aloha and CSMA in Wireless Ad- Hoc Networks Comparison of the Maximal Spatial Throughput of Aloha and CSMA in Wireless Ad- Hoc Networks http://dx.doi.org/10.5772/53264 ... per Comparison of the Maximal Spatial Throughput of Aloha and CSMA in Wireless Ad- Hoc Networks Comparison of the Maximal Spatial Throughput of Aloha and CSMA in Wireless Ad- Hoc Networks http://dx.doi.org/10.5772/53264...
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security for wireless ad hoc networks
... SECURITY FOR WIRELESS AD HOC NETWORKS Farooq Anjum and Petros Mouchtaris SECURITY FOR WIRELESS AD HOC NETWORKS SECURITY FOR WIRELESS AD HOC NETWORKS Farooq Anjum and Petros ... managing the security of the network Such solutions are not applicable for wireless ad hoc networks on account of the features of these networks The increased vulnerabilities of ad hoc networks and the ... system administration, and physical security Without adequate security, enterprises will shy away from the use of wireless ad hoc networks, governmental agencies will ban the use of wireless ad hoc...
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Báo cáo hóa học: " Coherence time-based cooperative MAC protocol 1 for wireless ad hoc networks" doc
... throughput performance is compared for increasing number of source nodes in the ad hoc network All the nodes are randomly placed in a radius of 200 m Concurrent transmissions always lead to collisions ... are worth mentioning when ad hoc network operates under heavy load and fast fading conditions: (1) A particular relay may not be reachable due to fading condition or out of coverage range, and (2) ... rate as a function of SNR A Overview of IEEE 802.11 protocol Figure Cooperative ad hoc network illustration and 11 Mbps [10] It uses direct sequence spread spectrum at a frequency of 2.4 GHz in Industrial,...
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Báo cáo hóa học: "Research Article OMNeT++-Based Cross-Layer Simulator for Content Transmission over Wireless Ad Hoc Networks" pot
... RadioChannelManager ∗ rcm; RadioChannelManager PathLoss ∗ pl; ReceiverNoise ∗ rn; FastFading ∗ ff; SlowFading ∗ sf; FastFading double getFastFading() { return 1; } double getFastFading(FastFadingInfo ... return 1; } SlowFading FastFadingInfo double getSlowFading() { return 1; } double getSlowFading(SlowFadingInfo ∗ sfi) { return 1; } GroundBasedShadowing SlowFadingInfo Figure 5: Radio channel manager ... hybrid wired /wireless ad hoc networks and the design of innovative radio access schemes Details of the API allowing highfidelity simulations by transmitting bits and bytes over the radio channel...
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Báo cáo hóa học: " Research Article On Wireless Ad Hoc Networks with Directional Antennas: Efficient Collision and Deafness Avoidance Mechanisms" ppt
... full exploitation of directional antennas in ad- hoc wireless networks, ” in Proceedings of the 4th ACM International Symposium on Mobile Ad Hoc Networking and Computing (MobiHoc ’03), pp 98–107, ... R Kumar, “The capacity of wireless networks, ” IEEE Transactions on Information Theory, vol 46, no 2, pp 388–404, 2000 [11] R Ramanathan, “On the performance of ad hoc networks with beamforming ... antennas cannot be realized In [11], the author provides a broad examination of many factors that affect network performance in wireless ad hoc networks with directional antennas, such as channel access,...
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Báo cáo hóa học: "Research Article Intelligent Stale-Frame Discards for Real-Time Video Streaming over Wireless Ad Hoc Networks" ppt
... server is located at one side of a WiMAX (IEEE 802.16a) network On the other side, an ad hoc gateway brings in the video streams to the multihop ad hoc network consisting of two embedded systems served ... scheme for jitter-tolerant video streaming over a multi-hop wireless ad hoc network A video packet temporarily buffered at IN on a wireless ad hoc network may exceed its end-to-end jitter constraint ... 2005 [2] G D Delgado, V C Fr´as, and M A Igartua, “Videoı streaming transmission with QoS over cross-layered ad hoc networks, ” in Proceedings of the International Conference on Software, Telecommunications...
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Báo cáo hóa học: " Research Article QoS-Aware Maximally Disjoint Routing in Power-Controlled Multihop CDMA Wireless Ad Hoc Networks" pdf
... Mobile Ad Hoc Networking & Computing (MobiHoc ’03), pp 153–164, Annapolis, Md, USA, June 2003 [2] V Kawadia and P R Kumar, “Power control and clustering in ad hoc networks, ” in Proceedings of the ... Extensions of the proposed scheme to other popular ad hoc routing algorithms such as ad hoc on-demand multipath distance vector (AOMDV) [13] are underway The extension of the current scheme to wireless ... Mobile Ad Hoc Networks (DSR),” Internet Draft, http://ietf.org/internet-drafts/draft-ietf-manet-dsr-10 txt [8] A Srinivas and E Modiano, “Minimum energy disjoint path routing in wireless ad- hoc networks, ”...
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Báo cáo hóa học: " Performance Evaluation of Important Ad Hoc Network Protocols" potx
... the end of simulation time EFFECT OF LOAD VARIATION To study the effect of load (number of nodes in a network) variation, the following number of nodes were used to evaluate the performance of the ... Figure 2: A setup model of the ad hoc network protocol simulation PERFORMANCE COMPARISON OF THE PROTOCOLS For performance evaluation of different protocols, the latest version of OPNET was used, which ... performance parameters For comparative performance analysis, we first simulated each protocol for ad hoc networks with 40 nodes In case of wireless LAN, TORA shows good performance for the control traffic...
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Báo cáo hóa học: " Research Article Tree-Based Distributed Multicast Algorithms for Directional Communications and Lifetime Optimization in Wireless Ad Hoc Networks" pptx
... 2002 [4] I Kang and R Poovendran, “Maximizing static network lifetime of wireless broadcast ad hoc networks, ” in Proceedings of IEEE International Conference on Communications (ICC ’03), vol 3, ... Sun, M Min, and D.-Z Du, “Energy-efficient broadcast and multicast routing in ad hoc wireless networks, ” in Proceedings of the 22nd IEEE International Performance, Computing and Communications Conference ... Guo and O W W Yang, “Formulation of optimal tree construction for maximum lifetime multicasting in wireless ad hoc networks with adaptive antennas,” in Proceedings of IEEE International Conference...
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Báo cáo hóa học: " Cross-Layer QoS Control for Video Communications over Wireless Ad Hoc Networks" docx
... node in a wireless ad hoc network under a specified traffic pattern and then propose the use of a cross-layer rate-control scheme based on the resulting analysis We consider a wireless ad hoc network ... networks with emphasis on providing quality -of- service assurance in high-speed networks, DWDM optical networks, wireless and mobile networks, network security, modeling and queuing analysis of ... over wireless ad hoc network are the following (1) FEC coding, especially using RS codes, is quite effective in dealing with bursty packet losses commonly encountered on wireless ad hoc networks...
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Topology Control in Wireless Ad Hoc Networks phần 1 pdf
... energy and capacity are limited resources in ad hoc networks In case of Wireless Sensor Networks (WSN), energy consumption is especially critical The ad hoc network designer should strive for reducing ... 5th ACM MobiHoc – Tokyo, May 24, 2004 Tutorial outline Introduction – – – Stationary networks – – – Motivation: the need for Topology Control (TC) in ad hoc networks An ad hoc network model ... choice of the nodes’ transmit power levels to achieve a certain global property – Power control: a wireless channel perspective — optimize the choice of the transmit power level for a single wireless...
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