mac routing andcross layer design protocols for wsn
Báo cáo hóa học: " Editorial Cross-Layer Design for the Physical, MAC, and Link Layer in Wireless Systems" doc
... information at the receiver (TBIR) when the transmitter has a partial channel state information The author develops a design framework for systems that utilize feedback and feed-forward information ... 2 information from the PHY layer is allowed to influence the operation of the MAC layer The second paper, “Exploiting transmit buffer information at the receiver in block-fading ... with random access protocols The paper by Romaszko and Blondia, entitled “Cross layer PHY -MAC protocol for wireless static and mobile ad hoc networks,” introduces a novel protocol for use in ad hoc...
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Báo cáo hóa học: " Research Article Efficient MAC Protocols for Wireless Sensor Networks Endowed with Directive Antennas: A Cross-Layer Solution" pot
... original IEEE 802.11 MAC in the presence of directional antennas, as directional MAC (DMAC) [10] or multihop MAC (MMAC) [11] to mention a few, while other solutions have been proposed for scheduled ... 2, the characteristics of the proposed D-STAR MAC protocol are described To this purpose, some preliminary remarks on existing MAC protocols for WSNs are given in Section 2.1, while the benefits ... framework, following a cross -layer design A novel MAC layer protocol, namely, D-STAR is proposed, aiming at expanding the capabilities of previously introduced STAR MAC approach [6] toward the...
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Báo cáo hóa học: " Research Article On Energy-Efficient Hierarchical Cross-Layer Design: Joint Power Control and Routing for Ad Hoc Networks" pdf
... on information sharing among layers Figure illustrates this hierarchical model for the first three layers of the protocol stack: physical layer, MAC (data link) layer, and network layer As protocols ... Networking Network layer MA lay C er cal ys i Ph yer la i Figure 1: Hierarchical cross -layer design model: interactions among physical, MAC, and network layers include multiuser detection, for a further ... the physical layer, while large-scale events can be handled by changes in routing, which implies at least local neighborhood information updates Our proposed hierarchical cross -layer design framework...
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Báo cáo hóa học: " Research Article On Energy-Efficient Hierarchical Cross-Layer Design: Joint Power Control and Routing for Ad Hoc Networks" pptx
... on information sharing among layers Figure illustrates this hierarchical model for the first three layers of the protocol stack: physical layer, MAC (data link) layer, and network layer As protocols ... Networking Network layer MA lay C er cal ys i Ph yer la i Figure 1: Hierarchical cross -layer design model: interactions among physical, MAC, and network layers include multiuser detection, for a further ... the physical layer, while large-scale events can be handled by changes in routing, which implies at least local neighborhood information updates Our proposed hierarchical cross -layer design framework...
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Design Patterns for SOAP Messaging with WS-Addressing and Routing
... addition to routing it 238 3901c09_final.qxd 6/30/04 3:19 PM Page 239 Design Patterns for SOAP Messaging with WS-Addressing and Routing Figure 9-3 Network design patterns for SOAP message routing ... efficient routing and referral implementation for these protocols In addition, WS-Addressing may be more efficient for implementing the chain routing model For more on this, refer to the section Routing ... reference information, which is binding information for a service Continued 222 3901c09_final.qxd 6/30/04 3:19 PM Page 223 Design Patterns for SOAP Messaging with WS-Addressing and Routing Table...
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Báo cáo hóa học: "Adaptive QoS provision for IEEE 802.16e BWA networks based on cross-layer design" ppt
... time) per bit in the PHY layer (Equation 8), we proceed to investigate cross -layer design for bandwidth resource management in the following section Cross -layer design for QoS-adaptive resource ... constraints in the MAC layer and the channel conditions in the PHY layer The resource allocation result for downlink transmission is reflected in DL-MAP message, while the one for uplink transmission ... scenarios for performance comparison, which is, respectively, denoted as EAC1, EAC2, and EAC3 EAC1, EAC2, and EAC3 assume that the resource consumption for transmitting one bit in MAC layer equals...
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báo cáo hóa học: " Cross-layer design for radio resource allocation based on priority scheduling in OFDMA wireless access network" docx
... WMAP-before is determined by knowing the number of traffic bursts for the session under scheduling using the original modulation level However, it is noted that the proposed TSA scheme is designed for ... Choi, J Tim, D Cho, S Cho, S Yun, W Park, K Kim, Design and implementation of a simulator based on a cross -layer protocol between MAC and PHY layers in a WiBro compatible IEEE 802.16e OFDMA system ... by each MS for receiving and transmitting its data frames However, the transmission of the MAP information may introduce large overhead of the downlink channel if the traffic bursts for each MS...
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Báo cáo hóa học: " Research Article Cross-Layer Design for Video Transmission over Wireless Rician Slow-Fading Channels Using an Adaptive Multiresolution Modulation and Coding Scheme" pptx
... singlelayer VBR H.263+ coder together with a single -layer JSCC delivery scheme This optimized single -layer system will be used as a baseline for comparison purposes For the 2 -layer system, before ... video stream with uniform modulation; for the 2 -layer system, the same R(1) = 1/2 code is used for the base layer and an RCPC c code with R(2) = 1/3 is used for the enhancement layer. 7 c The results ... 2 -layer adaptive modulation/coding scheme employing JSCC 37.6 PSNR (dB) 37.4 37.2 Single -layer uniform 8-PSK with JSCC Single -layer uniform QPSK with JSCC 37 36.8 36.6 36.4 Single -layer uniform...
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Báo cáo hóa học: " On Cross-Layer Design for Streaming Video Delivery in Multiuser Wireless Environments" pptx
... optimization of three layers in the protocol stack, namely the application layer (layer 7), the data link layer (layer 2), and the physical layer (layer 1) We include the application layer in the joint ... at any of the higher layers Its influence on system performance therefore has to be abstracted into a form which is meaningful for the other layers involved in the cross -layer optimization (2) ... individual layer performance may be better understood than those of the original layer parameters In wireless networks, the physical layer and the data link layer are dedicatedly designed for the...
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Báo cáo hóa học: "Robust System and Cross-Layer Design for H.264/AVC-Based Wireless Video Applications" pptx
... transmitter, for example, for rate control purposes The decoder can be informed about lost data units, which, for example, allow invoking appropriate error concealment methods Finally, the transport layer ... performance of reliability methods Specifically, we have considered to add means for reliability to four different layers of the wireless system, namely, (i) on the physical layer, (ii) on RLC layer, ... captured above the physical layer and below the RLC layer, and, therefore, they are used as the physical layer simulation in practice The provided bit-error patterns for a walking user can basically...
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Báo cáo hóa học: " MAC Protocols for Optimal Information Retrieval Pattern in Sensor Networks with Mobile Access" pptx
... proposed schemes only consider the MAC layer performance, that is, throughput The effect of MAC for information retrieval on information processing is analyzed in [7, 8] for infinite and finite sensor ... Besides the vector form as in (9) and (10), the input parameters of dmax (q) for both fields also take other forms in this paper for the ease of presentation The MAC design objective for the circular ... channel, some form of MAC is needed In this paper, we propose and discuss four MAC protocols, with different performance and complexity trade-off, to optimize the reconstruction performance In each...
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Báo cáo hóa học: " Cross-Layer Design of an Energy-Efficient Cluster Formation Algorithm with Carrier-Sensing Multiple Access for Wireless Sensor Networks" pdf
... between physical and MAC layers and MAC and network layers are introduced For the interaction between physical and MAC layers, a power control algorithm is proposed which accounts for the number of ... between MAC and routing protocols, and physical and MAC protocols are introduced; moreover, performance is evaluated either in terms of energy efficiency, or in terms of packets loss A routing ... components can be implemented as usual in WSNs [21] We apply the CL paradigm to the design of a protocol for WSNs where MAC and routing (i.e., cluster formation) aspects are jointly considered...
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On Sink Mobility Trajectory in Clustering Routing Protocols in WSNs
... Abstract—Energy efficient routing protocols are consistently cited as efficient solutions for Wireless Sensor Networks (WSNs) routing The area of WSNs is one of the emerging and fast ... hierarchal routing protocols Two scenarios are discussed to compare the performances of routing protocols; in first scenario static sink is implanted and in later one mobile sink is used We perform ... to border axis in many routing schemes We implement sink on the top axis of the network region and compare the results of all routing protocols 3 ENERGY EFFICIENT ROUTING PROTOCOLS Clustered sensor...
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Analysis, design and optimization of energy efficient protocols for wireless sensor networks
... standard, the transport layer is implicit, protocol stack include four layers which are application layer, network layer, MAC layer and physical layer The MAC layer and physical layer are defined by ... 2.2.1 Overview of routing protocols in WSNs 27 2.2.2 Classification and Operation of routing protocols in WSNs 29 iv 2.3 34 2.3.1 Clustering Algorithms for cluster-based protocols ... selected node before transmitting data This technique can be applied in two categories of routing protocol: cluster-based routing protocols and tree-based routing protocols The cluster-based routing...
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Cross layer design for communication systems
... Application Layer Presentation Layer Transport Layer Network Layer Data Link Control (DLC) Layer Medium Access Control (MAC) Layer Physical Layer Figure 1.4: The reference model for the layered architecture ... look at cross -layer design we present a definition for cross -layer design, discuss the approaches for cross -layer design, and discuss some aspects of the impact of cross -layer design on architecture ... set a lower layer parameter Interface for explicit notification Upward Information Flow Downward Information Flow A B Back-and-forth information flow C Designed Layer Fixed Layer Super Layer Merging...
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MAC protocols for wireless networks spatial reuse and energy efficiency
... Energy-Efficient MAC Protocols for WSNs This section surveys several MAC protocols for WSNs and highlights their design and limitations We choose to focus on synchronized duty-cycle MAC protocol for its ... multi-channel MAC protocols for wireless ad-hoc networks and also energy-efficient MAC protocols for WSNs Chapter presents the design and evaluation of our traffic-adaptive multi-channel MAC protocol for ... problematic RMAC (2007, IEEE Infocom) RMAC (Routing enhanced MAC) [54] exploits cross -layer routing information to reduce latency in multi-hop forwarding without sacrificing energy efficiency In RMAC,...
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Wes Mosler - The Piping and Tubing Design Guide for SolidWorks Routing
... Externally” is checked For more information on Routing Options, see the next section Routing Options and Settings” Refer to the “See Also” comment at the end of this section for routing tubing or ... box only applies to routing electrical cable See the SolidWorks help files for more information on routing electrical cables Basics 1-22 2011 Piping & Tubing Design Guide v1.2 Routing File Locations ... adding columns for material, weight, part number and description Figure 2A – Typical Base Elbow Part Design Table See Chapter 10 – Design Tables for more information on setting up the design table,...
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Distributed Algorithms and Protocols for Scalable Internet Telephony
... reviewing existing protocols for resource discovery (and finding them lacking for wide area applications), we present a scalable protocol for wide area service discovery, which is ideal for discovery ... Call flow for web form entry for call center 297 6.21 Bidirectional translation services for the hearing impaired 299 xiv xv Acknowledgments First and foremost, ... playout buffers for trace information, the impact of playout buffers on application performance cannot be determined either However, the round trip information is very useful for examining round...
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Multiple Access Protocols for Mobile Communications - GPRS, UMTS and Beyond
... R-ALOHA Design Options 3.7.1 3G Requirements Relevant for the MAC Layer 3.7.2 Quality of Service Requirements and the MAC Layer 3.7.3 A few R-ALOHA Design Options 3.7.4 Suitable R-ALOHA Design ... GPRS Models for the Physical Layer and for User Traffic Generation 5.1 How to Account for the Physical Layer? 5.1.1 What to Account For and How? 5.1.2 Using Approximations for Error Performance Assessment ... and the lower sub -layer of layer 2, the MAC (sub- )layer We associate ‘basic multiple access schemes’ with the physical layer, and ‘multiple access protocols with the MAC (sub- )layer Unlike the...
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design manual for machine lubrication
... www.norgren.com Design Manual for Machine Lubrication Introduction The information given in this manual is presented to enable the user to properly utilize Norgren products in the design of his machine ... www.norgren.com 23 Design Manual for Machine Lubrication Initial Adjustment and Start-Up The system MUST be designed and installed per the Norgren “Micro-Fog Machine Lubrication Application Design Manual” ... 5,000 4,000 3,000 10,000 20,000 50,000 –30 100,000 Design Manual for Machine Lubrication 31 Viscosity, Saybolt Universal Seconds Design Manual for Machine Lubrication Checking Manifold Pressure with...
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