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mac os
(101 results)-
Webcasts
Systm #58: The Best Way To Run Windows On Your Mac: VMWare Vs. Parallels
Nov 2008
In this webcast, the presenter answers the great VMWare vs. Parallels question. Which is best for running Windows applications inside of OS X? The presenter replies there's nothing wrong with...
Provided by Oleksiy Kovyrin
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Whitepapers
Identity-Aware Networking
Nov 2010
When you think about identity management, what comes to mind? Probably things like LDAP directories, strong authentication, and Single Sign-On (SSO) systems. In general, these technologies are...
Provided by Enterprise Strategy Group
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Whitepapers
Infiltrate the Vault: Security Analysis and Decryption of Lion Full Disk Encryption
Jul 2012
With the launch of Mac OS X 10.7 (Lion), Apple has introduced a volume encryption mechanism known as FileVault 2. Apple only disclosed marketing aspects of the closed-source software, e.g. its use...
Provided by University of California, Santa Cruz
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Whitepapers
Performance Analysis of Scheduling Algorithms For VoIP Services in IEEE 802.16 Systems
Nov 2012
VoIP applications are being widely used in today's networks challenging their capabilities to provide a good quality of experience level to the users. In particular, there are several scheduling...
Provided by International Journal of Computer Science Issues
-
Whitepapers
Improving Quality of VoIP over WiMAX
May 2012
Real-time services such as VoIP are becoming popular and are major revenue earners for network service providers. These services are no longer confined to the wired domain and are being extended...
Provided by International Journal of Computer Science Issues
-
Whitepapers
Improvement in Medium Access Control Protocol Based on New Contention Scheme for Wireless Ad Hoc Network
May 2012
In todays wireless networks, stations using the IEEE 802.11 standard contend for the channel using the Distributed Coordination Function (DCF). Research has shown that DCF's performance degrades...
Provided by International Journal of Computer Science Issues
-
Whitepapers
Priority Based Scheduling Algorithm Using Time and Transmission Length in 802.11 Networks
Aug 2012
The fairness of IEEE 802.11 wireless networks is rigid to forecast and organize since it constructed based on uncertainty and difficulty of the MAC conflicts and dynamics. So, there is a great...
Provided by International Journal of Computer Technology and Applications
-
Whitepapers
Underwater Acoustic Sensor Networks: A Survey on MAC and Routing Protocols
May 2012
In this paper, a detailed survey on the current protocols for medium access control layer and routing layer in the area underwater acoustic sensor networks are given. This survey is on some of the...
Provided by International Journal of Computer Technology and Applications
-
Whitepapers
A Comparative Simulation Platform for Ieee 802.11 and Ieee 802.15 Standards in Tree Topology
Oct 2012
Wireless Personal Area Networks (WPANs) are an emerging technology for future short range indoor and outdoor multimedia and data centric applications. In this paper the authors' work in modeling...
Provided by Creative Commons
-
Whitepapers
Routing Through Cross Layer Approach for Wireless Mac Layer Networks
Aug 2012
Wireless Mesh Networks (WMNs) are dynamically self-organized and self-configured, with the nodes in the network automatically establishing an ad hoc network and maintaining the mesh connectivity....
Provided by Creative Commons
-
Whitepapers
A New Energy Saving Mechanism in IEEE 802.16e/m
Nov 2011
To extend lifetime of battery-powered mobile device before its recharging in broadband wireless access networks, power saving mechanism in MAC (Medium Access Control) has become a significant...
Provided by Science and Development Network (SciDev.Net)
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Whitepapers
A Survey of Using Directional Antennas in Ad Hoc Networks
Oct 2012
In this paper, the authors present a comprehensive overview on Ad hoc networking by directional antennas. Use of Directional antennas can largely reduce the interference, increase the spatial...
Provided by AIRCC
-
Whitepapers
Performance Analysis of Improved Autonomous Power Control Mac Protocol (IAPCMP) for MANETs
Oct 2012
Power Control in Mobile Ad Hoc networks is a critical issue, since nodes are powered by batteries. The main idea of power control schemes is to use different power levels for RTS/CTS and DATA/ACK....
Provided by AIRCC
-
Whitepapers
Energy Efficient Mac Protocols for Wireless Sensor Networks: A Survey
Aug 2011
Use of Wireless sensor networks has been widely seen in the fields of target detection and tracking, environmental monitoring, industrial process monitoring, and tactical systems. In wireless...
Provided by AIRCC
-
Whitepapers
Impact of Contention Window on Congestion Control Algorithms for Wireless Ad Hoc Networks
Oct 2012
TCP congestion control mechanism is highly dependent on MAC layer Back-off algorithms that predict the optimal Contention Window size to increase the TCP performance in wireless ad hoc network....
Provided by AIRCC
-
Whitepapers
Next Generation 4G WiMAX Networks - IEEE 802.16 Standard
Oct 2012
This paper gives an overview about the various PHY and MAC layer specification which define the IEEE 802.16 standard and which define the Fixed WiMAX (Ver. 802.16d-2004) and Mobile WiMAX (Ver....
Provided by AIRCC
-
Whitepapers
A Novel Analysis of T Mac and S Mac Protocol for Wireless Sensor Networks Using Castalia
Jan 2013
Wireless sensor networks have been kept evolving due to the advancements in various technologies like radio, battery and operating systems in sensor elements but mac protocols are still most...
Provided by Amity University
-
Whitepapers
A Cellular Pulse Switching Architecture for Binary Event Sensing
Nov 2012
This paper presents a novel energy-efficient pulse switching protocol for ultra-light-weight cellular sensor network applications. The key idea is to summerize a single pulse, as opposed to...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
A Dynamic Channel Allocation Scheme Using Spectrum Sensing for Mobile Ad Hoc Networks
Nov 2012
An important aspect of the MAC layer design for Mobile Ad hoc NETworks (MANETs) is the ability to adapt to spatially non-uniform traffic load distributions. While coordinated channel access...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
FCM: Frequency Domain Cooperative Sensing and Multi-channel Contention for CRAHNs
Nov 2012
Radio spectrum resource is shown to be significantly underutilized with fixed spectrum assignment policy. As a promising solution, cognitive radio allows unlicensed users to opportunistically...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
An Energy Efficient Multi-channel MAC Protocol for Wireless Ad hoc Networks
Nov 2012
The IEEE 802.11 provides multiple channels for wireless communications at the Physical Layer, but the Medium Access Control (MAC) protocol is only designed for a single channel. If the multiple...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Automated MAC Protocol Generation for Dynamic Topologies
Nov 2012
The authors formulate the automated MAC protocol generation problem for dynamic topologies, as encountered in wireless ad hoc networks, under multiple neighborhoods and in the presence of...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Toward MAC Protocol Service over the Air
Nov 2012
With the rapid permeation of smartphones and wireless sensors in society, smartphones are poised to become personal hubs connecting wireless sensors with users and the Internet. Due to frequent...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Sensor-MAC with Dynamic Duty Cycle in Wireless Sensor Networks
Nov 2012
Wireless sensor networks are designed to be deployed in the physical environment to monitor a wide variety of real-world phenomena. These networks are composed of various small sensor nodes...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
A Cluster-based Energy Efficient MAC Protocol for Multi-hop Cognitive Radio Sensor Networks
Nov 2012
In this paper, the authors concentrate on the design, implementation and performance evaluation of the Medium Access Control (MAC) for the multi-hop sensor networks. Being operated in unlicensed...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Asynchronous MAC Protocol with QoS Awareness in Wireless Sensor Networks
Nov 2012
In Wireless Sensor Networks (WSNs), MAC protocols utilize duty cycling to extend the network lifetime. Receiver-Initiated MAC (RI-MAC) is an asynchronous duty cycling protocol, which schedules...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
On-Demand Radio Wave Sensor for Wireless Sensor Networks: Towards a Zero Idle Listening and Zero Sleep Delay MAC Protocol
Nov 2012
In Wireless Sensor Networks (WSNs) duty cycling has been an imperative choice to reduce idle listening but it introduces sleep delay. Thus, the conventional WSN MAC protocols are bound by the...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
PHY Foundation for Multi-Factor ZigBee Node Authentication
Nov 2012
The ZigBee specification builds upon IEEE 802.15.4 low-rate wireless personal area standards by adding security and mesh networking functionality. ZigBee networks may be secured through 128-bit...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Clock Skew Based Remote Device Fingerprinting Demystified
Nov 2012
Commonly used identifiers for IEEE 802.11 Access Points (APs), such as network name (SSID), MAC, or IP address can be easily spoofed. This allows an attacker to fake a real AP and intercept,...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Secure and Efficient Constructions of Hash, MAC and PRF for Mobile Devices
Nov 2012
Numerous cryptographic techniques have been developed to be used on mobile devices for various security and privacy protections. However, these cryptographic primitives, working under different...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Fair Channel Allocation and Access Design for Cognitive Ad Hoc Networks
Nov 2012
The authors investigate the fair channel assignment and access design problem for cognitive radio ad hoc network in this paper. In particular, they consider a scenario where ad hoc network nodes...
Provided by Institute of Electrical and Electronics Engineers
-
Whitepapers
Performance of Channel Bonding for Opportunistic Spectrum Access Networks
Nov 2012
In this paper the authors propose an analytical framework which allows the investigation of the average channel throughput at the Medium Access Control (MAC) layer for Opportunistic Spectrum...
Provided by Institute of Electrical and Electronics Engineers
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Whitepapers
How Useful is Adaptive Action?
Nov 2012
Channels with action-dependent states, as defined in, are considered. While investigated the scenario of message dependent non-adaptive action sequences, this paper focuses on adaptive action...
Provided by Institute of Electrical and Electronics Engineers
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Whitepapers
On the Capacity Region of the Gaussian MAC with Batteryless Energy Harvesting Transmitters
Nov 2012
The authors consider the two-user additive Gaussian Multiple Access Channel (MAC) where the transmitters communicate by using energy harvested from nature. Energy arrivals of the users are i.i.d....
Provided by Institute of Electrical and Electronics Engineers
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Whitepapers
MAC-PHY Cross-Layer for High Channel Capacity of Multiple-Hop MIMO Relay System
Apr 2012
For the high end-to-end channel capacity, the amplify-and-forward scheme multiple-hop MIMO relays system is considered. The distance between each transceiver is optimized to prevent some relays...
Provided by Scientific Research
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Whitepapers
Pilot Based Channel Estimation in Broadband Power Line Communication Networks
Apr 2012
In this paper pilot based channel estimation is being considered for Broadband Power Line Communication (BPLC) networks witch used Orthogonal Frequency Division Multiplexing (OFDM) in order to...
Provided by Scientific Research
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Whitepapers
On the Selection of Arithmetic Unit Structure in Voltage Overscaled Soft Digital Signal Processing
Aug 2007
A soft Digital Signal Processing (DSP) design paradigm has been recently proposed to reduce the energy consumption of DSP systems through voltage over-scaling. This paper shows that the selection...
Provided by Association for Computing Machinery
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White Papers
IEEE 802.15.4 Network Emulation Testbed
Jan 2011
IEEE 802.15.4 networks are promising solutions for wireless personal area networks, and in particular for wireless home area networks. IEEE 802.15.4 has numerous applications in fields such as...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
Medium Access Control Facing the Reality of WSN Deployments
Jul 2009
Although research on algorithms and communication protocols in Wireless Sensor Networks (WSN) has yielded a tremendous effort so far, most of these protocols are hardly used in real deployments...
Provided by Université de Strasbourg
-
White Papers
A Tree-Based Energy-Efficient Collision-Free MAC in Wireless Sensor Networks
Nov 2010
The rapid proliferation of miniature wireless networking technologies drives to devise different sensor network applications with diverse QoS requirements. Achieving higher reliability is one of...
Provided by Kyung Hee University
-
Presentations
Intel® Desktop Processor Comparison Tool
Aug 2012
Use this desktop processor benefits and specifications comparison tool to find the right Intel® Core™ processor for your business needs.
Provided by Intel Corporation
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Whitepapers
Design and Analysis of a Multi-Channel Cognitive MAC Protocol for Dynamic Access Spectrum Networks
Sep 2008
This paper proposes a decentralized cognitive radio based multi-channel MAC protocol for Dynamic Spectrum Access (DSA) networks. In the authors' proposed MAC protocol, each secondary user is...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Sliding-Trellis Based Frame Synchronization
Apr 2011
Frame Synchronization (FS) is required in several communication standards in order to recover the individual frames that have been aggregated in a burst. This paper proposes a low-delay and...
Provided by Institute of Electrical & Electronic Engineers
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Podcasts
Apple'N'Apps: MacWorld-iWorld 2012
Feb 2012
In this Podcast, the speaker explains about the Apple 'N' Apps. To bringing out the latest and greatest about apple and apps. In this podcast the speakers explains about the highlights of MacWorld...
Provided by RawVoice
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Podcasts
Apple'N'Apps & Apptudes: Beginning a New
Apr 2012
In this Podcast, the speakers discuss about Apple 'N' Apps & Apptudes. They discuss about Apple's Q2 financial results, WWDC, TV English Premium and other scam apps as well as tons of updates.
Provided by RawVoice
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White Papers
How to Lower Congestion With Cross-Layer MPR-PHY/MAC Design?
Nov 2011
In this paper, the authors introduce a cross-layer design between PHY and MAC for Multiple Packet Reception (MPR). Based on the simulation results, three phases of operation has been identified...
Provided by University of California
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White Papers
Energy Efficient Token Based MAC Protocol for Wireless Sensor Networks
Mar 2011
In this paper, the authors propose on energy efficient token based MAC protocol for WSNs, in order to reduce energy consumption of each sensor node which is one of the important issues to prolong...
Provided by International Journal of Computer Science and Information Technologies
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Webcasts
Today in IOS 2011
Jul 2011
In this webcast, the presenter explains about iOS 2011. The presenter will explains some of the tips, tricks and the latest in Apple's iOS and related hardware.
Provided by Internet Archive
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White Papers
FP-MAC: A Distributed MAC Algorithm for 802.15.4-Like Wireless Sensor Networks
Sep 2007
In this paper, the authors focus on the problems of high latency and low throughput arising from the periodic operation of MAC protocols for wireless sensor networks. In order to meet both design...
Provided by Reed Elsevier
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White Papers
A New Lower Bound on the Maximal Error Probability for Discrete Memoryless Multiple-Access Channels
Jan 2008
In this paper, a new lower bound for the maximal error probability of a two-user Discrete Memory-less (DM) Multiple-Access Channel (MAC) is derived. This is the first bound of this type that...
Provided by University of Michigan
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White Papers
Model Checking for Verification of Mandatory Access Control Models and Properties
Jul 2010
Mandatory Access Control (MAC) mechanisms control which users or processes have access to which resources in a system. MAC policies are increasingly specified to facilitate managing and...
Provided by North Carolina State University
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White Papers
An Information Theoretic Approach for the Performance Evaluation of MultihopWireless Ad Hoc Networks
Jan 2011
The information theoretic principles of Maximum Entropy (ME) and Minimum Relative Entropy (MRE) are employed, as least-biased methods of inference, towards the analysis of a multi-hop ad hoc...
Provided by University of Bradford
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White Papers
Resource Allocation with MAC Layer Node Cooperation in Cognitive Radio Networks
Feb 2010
An algorithm for cooperative Dynamic Spectrum Access in Cognitive Radio networks is presented. The proposed algorithm utilizes Medium Access Control layer mechanisms for message exchange between...
Provided by Hindawi Publishing
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White Papers
On the Capacity of Quantized Gaussian MAC Channels With Finite Input Alphabet
Apr 2011
In this paper, the authors investigate the achievable rate region of Gaussian Multiple Access Channels (MAC) with finite input alphabet and quantized output. With finite input alphabet and an...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
Dynamic Connectivity and Path Formation Time in Poisson Networks
Aug 2011
The connectivity of wireless networks is commonly analyzed using static geometric graphs. However, with half-duplex radios and due to interference, static or instantaneous connectivity cannot be...
Provided by Indian Institute of Technology Madras
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White Papers
ROPA: A MAC Protocol for Underwater Acoustic Networks With Reverse Opportunistic Packet Appending
Jan 2010
In most existing sender-initiated handshaking based underwater Media Access Control (MAC) protocols, only the initiating sender is allowed to transmit data packets to its intended receiver after...
Provided by National University of Singapore
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White Papers
A Fair and Adaptive Contention Resolution Algorithm for Time-Slotted MAC Protocol Designs
Jun 2010
This paper addresses the fairness of Medium Access Control (MAC) protocols that are capable of handling interference on the physical layer to a varying extent. The variation addressed is thereby...
Provided by Technische Universitat Munchen
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Whitepapers
VMware vCenter Converter: Overview, P2V Tips, and Security Concerns
Oct 2011
vCenter Converter is becoming more robust and powerful with each new revision, and this white paper examines many common problems and possible solutions. Most systems can be virtualized, and the...
Provided by Global Knowledge
-
White Papers
A Tree-Based Energy-Efficient Collision-Free MAC in Wireless Sensor Networks
Nov 2010
The rapid proliferation of miniature wireless networking technologies drives to devise different sensor network applications with diverse QoS requirements. Achieving higher reliability is one of...
Provided by Kyung Hee University
-
White Papers
Medium Access Control Facing the Reality of WSN Deployments
Jul 2009
Although research on algorithms and communication protocols in Wireless Sensor Networks (WSN) has yielded a tremendous effort so far, most of these protocols are hardly used in real deployments...
Provided by Université de Strasbourg
-
White Papers
IEEE 802.15.4 Network Emulation Testbed
Jan 2011
IEEE 802.15.4 networks are promising solutions for wireless personal area networks, and in particular for wireless home area networks. IEEE 802.15.4 has numerous applications in fields such as...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
BurstMAC - An Efficient MAC Protocol for Correlated Traffic Bursts
May 2009
Many sensor network applications feature correlated traffic bursts: after a period of idle time with almost no network traffic, many nodes have to transmit large amounts of data simultaneously....
Provided by ETH Zurich
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White Papers
Trojan Horse Resistant Discretionary Access Control
Apr 2008
Modern operating systems primarily use Discretionary Access Control (DAC) to protect files and other operating system resources. DAC mechanisms are more user-friendly than Mandatory Access Control...
Provided by Purdue University
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Whitepapers
UNIX: Compelling Value and Bright Future
Jan 2011
Much has been written about the continued migration of UNIX workloads to other operating systems, potentially giving the impression that the market for UNIX technology is rapidly disappearing....
Provided by Hewlett-Packard (HP)
-
White Papers
Energy and Utility Optimization in Wireless Networks With Random Access
Nov 2010
Energy consumption is a main issue of concern in wireless networks. Energy minimization increases the time that networks' nodes work properly without recharging or substituting batteries. Another...
Provided by Sharif University of Technology
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White Papers
Hierarchical File Systems Are Dead
Apr 2009
For over forty years, the authors have assumed hierarchical file system namespaces. These namespaces were a rudimentary attempt at simple organization. As users have begun to interact with...
Provided by President and Fellows of Harvard College
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White Papers
Estimating Clock Uncertainty for Efficient Duty-Cycling in Sensor Networks
Jun 2008
Radio duty cycling has received significant attention in sensor networking literature, particularly in the form of protocols for medium access control and topology management. While many protocols...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
Pushing the Limits of Address Based Authentication: How to Avoid MAC Address Spoofing in Wireless LANs
Jun 2009
It is well-known that in wireless local area networks, authenticating nodes by their MAC addresses is not secure since it is very easy for an attacker to learn one of the authorized addresses and...
Provided by Middle East Technical University
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White Papers
PAC Vs. MAC for Decentralized Detection Using Non-coherent Modulation
Mar 2009
In decentralized detection, local sensor observations have to be communicated to a fusion center through the wireless medium, inherently a Multiple-Access Channel (MAC). As communication is...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
A Simplified Analytical Model for End-to-End Delay Analysis in MANET
Dec 2010
In order to provide quality delivery to delay sensitive applications such as voice and video, it is extremely important that mobile Ad hoc networks provide Quality of Service (QoS) support in...
Provided by Indian Institute of Technology Roorkee
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White Papers
Implementation and Evaluation of a Mobile PlanetLab Node
Aug 2009
With the introduction of cellular phones, mobile wireless communication has become an integral part of day-to-day life in this century. A testbed is crucial in continuing cutting-edge wireless...
Provided by University of California
-
White Papers
Java Development Guide for Mac OS X
Oct 2010
The Java Platform, Standard Edition for Mac OS X provides a Java environment that is highly integrated with Mac OS X. This integration brings together the Java platform's versatility and Mac OS...
Provided by Apple
-
Podcasts
Creating Dashboards as Easy as 1, 2, 3
Jun 2010
This podcast speaks about Microsoft-led Creating Dashboards as easy as 1, 2, 3, where one can learn how to take advantage of Microsoft SharePoint 2010 and PerformancePoint Services. The speakers...
Provided by Microsoft
-
White Papers
Securing Mac Os X Leopard (10.5)
Sep 2008
Mac OS X Leopard continues in the tradition of the previous operating system, Tiger, by providing one of the most secure default installations of any desktop operating system. The operating system...
Provided by Corsaire
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White Papers
Kanaka for Mac 2.0
May 2010
Kanaka for Mac 2.0 provides Mac OS X users automated single login access to Novell eDirectory storage resources through flexible login options. As with previous versions, the Kanaka Plug-in...
Provided by Condrey
-
White Papers
Using Centrify's DirectControl With Mac OS X
Oct 2008
This white paper provides an overview of the features and benefits of using Centrify DirectControl, and describes how an organization can realize substantial benefits by using DirectControl to...
Provided by Centrify
-
White Papers
Evaluating Mac Computers for the Enterprise: Strategies and Best Practices for Planning, Testing, and Deploying the Mac Successfully in Your Enterprise
Oct 2009
Many C-level executives and IT managers are looking to tap into technology that can give their companies an edge. From the world's only laptops that can start up in Mac OS X, Microsoft Windows,...
Provided by Apple
-
White Papers
Local Management Policy on the Mac
Jul 2009
This white paper provides a step-by-step, how-to guide for system administrators who need to implement policies on Mac systems on a local, temporary basis to promote consistent policies across the...
Provided by Apple
-
Whitepapers
Using the HP DreamColor LP2480zx Display With Apple Mac Systems
May 2009
The HP DreamColor LP2480zx professional display provides an extremely wide color gamut and a highly accurate color performance that exceeds that available with most other LCD displays. But instead...
Provided by Hewlett-Packard (HP)
-
White Papers
Advanced MAC OS X Rootkits
Jul 2009
The Mac OS X kernel (xnu) is a hybrid BSD and Mach kernel. While Unix-oriented rootkit techniques are pretty well known, Mach-based rootkit techniques have not been as thoroughly publicly...
Provided by Black Hat
-
Whitepapers
Performance Analysis of Scheduling Algorithms For VoIP Services in IEEE 802.16 Systems
Nov 2012
VoIP applications are being widely used in today's networks challenging their capabilities to provide a good quality of experience level to the users. In particular, there are several scheduling...
Provided by International Journal of Computer Science Issues
-
Whitepapers
Improving Quality of VoIP over WiMAX
May 2012
Real-time services such as VoIP are becoming popular and are major revenue earners for network service providers. These services are no longer confined to the wired domain and are being extended...
Provided by International Journal of Computer Science Issues
-
Whitepapers
Improvement in Medium Access Control Protocol Based on New Contention Scheme for Wireless Ad Hoc Network
May 2012
In todays wireless networks, stations using the IEEE 802.11 standard contend for the channel using the Distributed Coordination Function (DCF). Research has shown that DCF's performance degrades...
Provided by International Journal of Computer Science Issues
-
Whitepapers
Priority Based Scheduling Algorithm Using Time and Transmission Length in 802.11 Networks
Aug 2012
The fairness of IEEE 802.11 wireless networks is rigid to forecast and organize since it constructed based on uncertainty and difficulty of the MAC conflicts and dynamics. So, there is a great...
Provided by International Journal of Computer Technology and Applications
-
Whitepapers
Underwater Acoustic Sensor Networks: A Survey on MAC and Routing Protocols
May 2012
In this paper, a detailed survey on the current protocols for medium access control layer and routing layer in the area underwater acoustic sensor networks are given. This survey is on some of the...
Provided by International Journal of Computer Technology and Applications
-
Whitepapers
A Comparative Simulation Platform for Ieee 802.11 and Ieee 802.15 Standards in Tree Topology
Oct 2012
Wireless Personal Area Networks (WPANs) are an emerging technology for future short range indoor and outdoor multimedia and data centric applications. In this paper the authors' work in modeling...
Provided by Creative Commons
-
Whitepapers
Routing Through Cross Layer Approach for Wireless Mac Layer Networks
Aug 2012
Wireless Mesh Networks (WMNs) are dynamically self-organized and self-configured, with the nodes in the network automatically establishing an ad hoc network and maintaining the mesh connectivity....
Provided by Creative Commons
-
Whitepapers
A New Energy Saving Mechanism in IEEE 802.16e/m
Nov 2011
To extend lifetime of battery-powered mobile device before its recharging in broadband wireless access networks, power saving mechanism in MAC (Medium Access Control) has become a significant...
Provided by Science and Development Network (SciDev.Net)
-
Whitepapers
A Survey of Using Directional Antennas in Ad Hoc Networks
Oct 2012
In this paper, the authors present a comprehensive overview on Ad hoc networking by directional antennas. Use of Directional antennas can largely reduce the interference, increase the spatial...
Provided by AIRCC
-
Whitepapers
Performance Analysis of Improved Autonomous Power Control Mac Protocol (IAPCMP) for MANETs
Oct 2012
Power Control in Mobile Ad Hoc networks is a critical issue, since nodes are powered by batteries. The main idea of power control schemes is to use different power levels for RTS/CTS and DATA/ACK....
Provided by AIRCC
-
Whitepapers
Energy Efficient Mac Protocols for Wireless Sensor Networks: A Survey
Aug 2011
Use of Wireless sensor networks has been widely seen in the fields of target detection and tracking, environmental monitoring, industrial process monitoring, and tactical systems. In wireless...
Provided by AIRCC
-
Whitepapers
Impact of Contention Window on Congestion Control Algorithms for Wireless Ad Hoc Networks
Oct 2012
TCP congestion control mechanism is highly dependent on MAC layer Back-off algorithms that predict the optimal Contention Window size to increase the TCP performance in wireless ad hoc network....
Provided by AIRCC
-
Whitepapers
Next Generation 4G WiMAX Networks - IEEE 802.16 Standard
Oct 2012
This paper gives an overview about the various PHY and MAC layer specification which define the IEEE 802.16 standard and which define the Fixed WiMAX (Ver. 802.16d-2004) and Mobile WiMAX (Ver....
Provided by AIRCC
-
Whitepapers
A Novel Analysis of T Mac and S Mac Protocol for Wireless Sensor Networks Using Castalia
Jan 2013
Wireless sensor networks have been kept evolving due to the advancements in various technologies like radio, battery and operating systems in sensor elements but mac protocols are still most...
Provided by Amity University
-
Whitepapers
A Cellular Pulse Switching Architecture for Binary Event Sensing
Nov 2012
This paper presents a novel energy-efficient pulse switching protocol for ultra-light-weight cellular sensor network applications. The key idea is to summerize a single pulse, as opposed to...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
A Dynamic Channel Allocation Scheme Using Spectrum Sensing for Mobile Ad Hoc Networks
Nov 2012
An important aspect of the MAC layer design for Mobile Ad hoc NETworks (MANETs) is the ability to adapt to spatially non-uniform traffic load distributions. While coordinated channel access...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
FCM: Frequency Domain Cooperative Sensing and Multi-channel Contention for CRAHNs
Nov 2012
Radio spectrum resource is shown to be significantly underutilized with fixed spectrum assignment policy. As a promising solution, cognitive radio allows unlicensed users to opportunistically...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
An Energy Efficient Multi-channel MAC Protocol for Wireless Ad hoc Networks
Nov 2012
The IEEE 802.11 provides multiple channels for wireless communications at the Physical Layer, but the Medium Access Control (MAC) protocol is only designed for a single channel. If the multiple...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Automated MAC Protocol Generation for Dynamic Topologies
Nov 2012
The authors formulate the automated MAC protocol generation problem for dynamic topologies, as encountered in wireless ad hoc networks, under multiple neighborhoods and in the presence of...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Toward MAC Protocol Service over the Air
Nov 2012
With the rapid permeation of smartphones and wireless sensors in society, smartphones are poised to become personal hubs connecting wireless sensors with users and the Internet. Due to frequent...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Sensor-MAC with Dynamic Duty Cycle in Wireless Sensor Networks
Nov 2012
Wireless sensor networks are designed to be deployed in the physical environment to monitor a wide variety of real-world phenomena. These networks are composed of various small sensor nodes...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
A Cluster-based Energy Efficient MAC Protocol for Multi-hop Cognitive Radio Sensor Networks
Nov 2012
In this paper, the authors concentrate on the design, implementation and performance evaluation of the Medium Access Control (MAC) for the multi-hop sensor networks. Being operated in unlicensed...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Asynchronous MAC Protocol with QoS Awareness in Wireless Sensor Networks
Nov 2012
In Wireless Sensor Networks (WSNs), MAC protocols utilize duty cycling to extend the network lifetime. Receiver-Initiated MAC (RI-MAC) is an asynchronous duty cycling protocol, which schedules...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
On-Demand Radio Wave Sensor for Wireless Sensor Networks: Towards a Zero Idle Listening and Zero Sleep Delay MAC Protocol
Nov 2012
In Wireless Sensor Networks (WSNs) duty cycling has been an imperative choice to reduce idle listening but it introduces sleep delay. Thus, the conventional WSN MAC protocols are bound by the...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
PHY Foundation for Multi-Factor ZigBee Node Authentication
Nov 2012
The ZigBee specification builds upon IEEE 802.15.4 low-rate wireless personal area standards by adding security and mesh networking functionality. ZigBee networks may be secured through 128-bit...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Clock Skew Based Remote Device Fingerprinting Demystified
Nov 2012
Commonly used identifiers for IEEE 802.11 Access Points (APs), such as network name (SSID), MAC, or IP address can be easily spoofed. This allows an attacker to fake a real AP and intercept,...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Secure and Efficient Constructions of Hash, MAC and PRF for Mobile Devices
Nov 2012
Numerous cryptographic techniques have been developed to be used on mobile devices for various security and privacy protections. However, these cryptographic primitives, working under different...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Fair Channel Allocation and Access Design for Cognitive Ad Hoc Networks
Nov 2012
The authors investigate the fair channel assignment and access design problem for cognitive radio ad hoc network in this paper. In particular, they consider a scenario where ad hoc network nodes...
Provided by Institute of Electrical and Electronics Engineers
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Whitepapers
Performance of Channel Bonding for Opportunistic Spectrum Access Networks
Nov 2012
In this paper the authors propose an analytical framework which allows the investigation of the average channel throughput at the Medium Access Control (MAC) layer for Opportunistic Spectrum...
Provided by Institute of Electrical and Electronics Engineers
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Whitepapers
How Useful is Adaptive Action?
Nov 2012
Channels with action-dependent states, as defined in, are considered. While investigated the scenario of message dependent non-adaptive action sequences, this paper focuses on adaptive action...
Provided by Institute of Electrical and Electronics Engineers
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Whitepapers
On the Capacity Region of the Gaussian MAC with Batteryless Energy Harvesting Transmitters
Nov 2012
The authors consider the two-user additive Gaussian Multiple Access Channel (MAC) where the transmitters communicate by using energy harvested from nature. Energy arrivals of the users are i.i.d....
Provided by Institute of Electrical and Electronics Engineers
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Whitepapers
MAC-PHY Cross-Layer for High Channel Capacity of Multiple-Hop MIMO Relay System
Apr 2012
For the high end-to-end channel capacity, the amplify-and-forward scheme multiple-hop MIMO relays system is considered. The distance between each transceiver is optimized to prevent some relays...
Provided by Scientific Research
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Whitepapers
Pilot Based Channel Estimation in Broadband Power Line Communication Networks
Apr 2012
In this paper pilot based channel estimation is being considered for Broadband Power Line Communication (BPLC) networks witch used Orthogonal Frequency Division Multiplexing (OFDM) in order to...
Provided by Scientific Research
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Whitepapers
On the Selection of Arithmetic Unit Structure in Voltage Overscaled Soft Digital Signal Processing
Aug 2007
A soft Digital Signal Processing (DSP) design paradigm has been recently proposed to reduce the energy consumption of DSP systems through voltage over-scaling. This paper shows that the selection...
Provided by Association for Computing Machinery
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White Papers
IEEE 802.15.4 Network Emulation Testbed
Jan 2011
IEEE 802.15.4 networks are promising solutions for wireless personal area networks, and in particular for wireless home area networks. IEEE 802.15.4 has numerous applications in fields such as...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Medium Access Control Facing the Reality of WSN Deployments
Jul 2009
Although research on algorithms and communication protocols in Wireless Sensor Networks (WSN) has yielded a tremendous effort so far, most of these protocols are hardly used in real deployments...
Provided by Université de Strasbourg
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White Papers
A Tree-Based Energy-Efficient Collision-Free MAC in Wireless Sensor Networks
Nov 2010
The rapid proliferation of miniature wireless networking technologies drives to devise different sensor network applications with diverse QoS requirements. Achieving higher reliability is one of...
Provided by Kyung Hee University
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White Papers
A Fair and Adaptive Contention Resolution Algorithm for Time-Slotted MAC Protocol Designs
Jun 2010
This paper addresses the fairness of Medium Access Control (MAC) protocols that are capable of handling interference on the physical layer to a varying extent. The variation addressed is thereby...
Provided by Technische Universitat Munchen
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White Papers
ROPA: A MAC Protocol for Underwater Acoustic Networks With Reverse Opportunistic Packet Appending
Jan 2010
In most existing sender-initiated handshaking based underwater Media Access Control (MAC) protocols, only the initiating sender is allowed to transmit data packets to its intended receiver after...
Provided by National University of Singapore
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White Papers
Dynamic Connectivity and Path Formation Time in Poisson Networks
Aug 2011
The connectivity of wireless networks is commonly analyzed using static geometric graphs. However, with half-duplex radios and due to interference, static or instantaneous connectivity cannot be...
Provided by Indian Institute of Technology Madras
