- Subscribe to this page:
- RSS
- Email Alert
mobile and wireless
(38080 results)Search the Library
Mission Statement
TechRepublic's ITPapers is the Web's largest library of free technical IT white papers, webcasts, and case studies. Covering IT categories including Data Management, IT Management, Networking, Communications, Enterprise Applications, Storage, Security and much more, TechRepublic's White Paper Directory is the best source for technical white papers and IT information.
-
Whitepapers
Multiobjective Sensor Node Deployement in Wireless Sensor Networks
Apr 2012
In Wireless Sensor Networks (WSN), sensor node deployment is essential for maximizing the coverage and detection probabilities. But the existing optimization solution suffers from limited energy...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
Face Detection Using Eigen Method
Mar 2012
As continual research is being conducted in the area of computer vision, one of the most practical applications under vigorous development is in the construction of a robust face detection system....
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
Performance Analysis of Different Erbium Doped Fiber Based Codirectionally Pumped WDM Systems Operating in Optical Wide-Band
Feb 2012
With the advent of modern telecommunication industry in 21st century, secure, fast and long distance data communication has become an important communication requirement. Widespread demand for...
Provided by Universal Journal of Applied computer Science and Technology
-
Whitepapers
Secured Tree Based Key Management in Wireless Broadcast Services
Feb 2012
Wireless broadcast is an effective approach for spreading data widely to a number of users. To provide secure transmission, symmetric-key-based encryption is one of the widely used method, that...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
Architecture of Software Defined Radio Using Digital Signal Processor
Jun 2011
In considering the architecture of the radio device, whether mobile terminal or base station it simply divided into two areas. RADIO FRONT END,RADIO BACK END. Radio front end is related to the...
Provided by Universal Journal of Applied computer Science and Technology
-
Whitepapers
LTE System Performance in Frequency Selective Fading Channel With Aid of Stbc Technology
Aug 2011
Multipath fading is the major problem facing any wireless communications system. Orthogonal Frequency Division Multiplexing (OFDM) is considered efficient solution for mitigating fading distortion...
Provided by Universal Journal of Applied computer Science and Technology
-
Whitepapers
A Survey of Traffic Analysis
Feb 2012
In recent years not only use of internet is increased very rapidly but attackers on internet increased. The use of internet nothing but a transferring of data from one place to another place now...
Provided by Universal Journal of Applied computer Science and Technology
-
Whitepapers
Authentication and Authorisation Mechanisms in Support of Secure Access to WMN Resources
Jun 2012
Over the past several years, a number of design approaches in wireless mesh networks have been introduced to support the deployment of Wireless Mesh Networks (WMNs). The authors introduce a novel...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Experimental Comparison of Bluetooth and WiFi Signal Propagation for Indoor Localisation
Apr 2012
Systems for indoor positioning using radio technologies are largely studied due to their convenience and the market opportunities they offer. The positioning algorithms typically derive geographic...
Provided by Springer Science+Business Media
-
Whitepapers
LTE Uplink Scheduling - Flow Level Analysis
Dec 2010
Long Term Evolution (LTE) is a cellular technology developed to support data traffic at potentially high rates. It is foreseen to extend the capacity and improve the performance of current 3G...
Provided by University of Twente
-
Whitepapers
Evolving an Indoor Robotic Localization System Based on Wireless Networks
Jun 2012
This paper addresses the evolution of an Artificial Neural Network (ANN) to assist in the problem of indoor robotic localization. The authors investigate the design and building of an autonomous...
Provided by University of Bern
-
Whitepapers
Data Filtering and Aggregation in a Localisation WSN Testbed
May 2012
The main challenge in wireless networks is to optimally use the confined radio resources to support data transfer. This holds for large-scale deployments as well as for small-scale test...
Provided by Universitat Bern
-
Whitepapers
Service Descriptions and Linked Data for Integrating WSNs Into Enterprise IT
Apr 2012
This paper presents the authors' ongoing work on enterprise IT integration of sensor networks based on the idea of service descriptions and applying linked data principles to them. They argue that...
Provided by University of Bern
-
Whitepapers
Bandwidth and Gain Increment of Microstrip Patch Antenna With Shifted Elliptical Slot
Jul 2011
This paper describes the increment in Bandwidth and Gain of Rectangular Microstrip Patch antenna with Shifted Elliptical slot. First the authors have designed a Rectangular microstrip patch...
Provided by International Journal of Engineering Science and Technology
-
Whitepapers
Implementation of Object Oriented Encryption System Using Layered Cellular Automata
Jul 2011
As the technology advances day by day, sharing of information through Internet is growing rapidly, which increases new information threats and vulnerabilities and hence the need to protect...
Provided by International Journal of Engineering Science and Technology
-
Whitepapers
An Efficient Load Balancing Algorithm for Grid Computing Using Mobile Agent
Jun 2011
The development of Grid Computing technologies, dynamic resource sharing is becoming an increasingly important issue in the area of distributed, heterogeneous network. In this paper, an approach...
Provided by International Journal of Engineering Science and Technology
-
Whitepapers
Optimal Rate Based Image Transmission Scheme in Multi-Rate Wireless Sensor Networks
Jun 2011
In image transmission application over WSN energy efficiency and image quality are both important factor for joint optimization. The large size image transmission cause bottleneck in WSN due to...
Provided by International Journal of Engineering Science and Technology
-
Whitepapers
Mobile Tracking Application for Locating Friends Using LBS
Jun 2011
Now-a-days Location based services are becoming more important to mobile users. LBS are the mobile service which uses the user location information which consists of X and Y coordinates generated...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
Gateway Node-Based Greedy Routing Algorithm for Efficient Packet Forwarding in Vehicular Ad Hoc Networks
May 2011
In recent years, vehicular communications are one of the hottest research topics. It has also gained much attention in industry as well as academia. Vehicular Ad Hoc NETworks (VANETs) are advances...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
Reed-Solomon Code Performance for M-Ary Modulation Over AWGN Channel
May 2011
The primary objective of this simulation is to find the performance of Reed-Solomon code for M-ary modulation in a communication noisy channel (AWGN). M-ary Frequency Shift Keying (M-FSK)...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
Performance Evaluation of Hybrid Network Using Eigrp & OSPF for Different Applications
May 2011
Researchers have proposed a number of routing protocols in literature. Each one is based on different characteristics and properties. In this paper, the authors evaluate the performance of hybrid...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
Fine Timing Synchronization for OFDM Receiver
May 2011
The Time synchronization error effect the performance of OFDM receiver and Carrier frequency synchronization is critical to the quality of signal reception in OFDM systems. In this paper, the...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
Modern Network Security: Issues and Challenges
Jun 2011
Secure Network has now become a need of any organization. The security threats are increasing day by day and making high speed wired/wireless network and internet services, insecure and...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
The Technological Issues and Impact of Intelligent Network Strategies and Its Rapid Deployment of Services in the Communication Network
May 2011
The primary aim of the IN was to enhance the core telephony services offered by traditional telecommunications networks, which usually amounted to making and receiving voice calls, sometimes with...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
FPGA Implementation of Mac Header Block of Transmitter for Wi-Fi
Apr 2011
For the wireless communication, IEEE 802.11 is one of the protocols available. The IEEE 802.11b uses the Medium Access Control layer (MAC) for wireless local area network. These wireless local...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
Implementation of Self Diagnostic and Intelligent Power Management Protocols on Wireless Gas Sensor Node
Apr 2011
This paper presents implementation of self diagnostic, power management protocols and hardware design to enhance the hardware flexibility and sensing accuracy of sensor node. The authors have come...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
Markov Model With Absorbing State for Reliable Packet Delivery in Wireless Sensor Networks
Apr 2011
This paper presents a model for reliable packet delivery in Wireless Sensor Networks based on Discrete Parameter Markov Chain with absorbing state. The authors have demonstrated the comparison...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
Issues in Mobile Distributed Real Time Databases: Performance and Review
Apr 2011
Increase in handy and small electronic devices in computing fields; it makes the computing more popular and useful in business. Tremendous advances in wireless networks and portable computing...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
Moving Multi Target Detection Using Costas Signal
Mar 2011
In modern times, radar is used in a wide variety of applications including defense, air traffic control, meteorology, and even mapping. Radio Detection and Ranging (RADAR) involves the...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
Design and Implementation of High Performance AHB Arbiter for on Chip Bus Architecture
Mar 2011
Resolution is a big issue in SOC (System On Chip) while dealing with number of master trying to sense a single data bus. The effectiveness of a system to resolve this priority resides in its...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
A Survey on Comparative Study of Mobile Agent Platforms
Mar 2011
Mobile Agent technology is upcoming alternative to construct an elegant generation of highly distributed systems. A mobile agent can move to the network locations of the needed information...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
Low Power and Low Jitter Phase Frequency Detector for Phase Lock Loop
Mar 2011
In recent years, the design of low power and low jitter PLL for the different application has become one of the greatest challenges in high-performance Very Large Scale Integration (VLSI) design....
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
Genetic Algorithm for Multihoming Cell Assignment Problem in Wireless ATM Network
Mar 2011
In the design of cellular telecommunications networks, the handover and cabling cost management play an important role. In this paper, the authors propose a cell assignment problem, which assign...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
Terrorism Control by Using Existing Ad-Hoc Network (TCEAN)
Mar 2011
Terrorist crime takes a physical, psychological, social, political and economic toll on primary and secondary victims and society as a whole. The perpetrators of the crime go free as there are no...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
Review of Application of Ant Colony Optimization
Feb 2011
Ant colony optimization is a technique for optimization that was introduced in the early 1990's. The inspiring source of ant colony optimization is the foraging behavior of real ant colonies. Ant...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
Implementation, Management and Analysis of User Groups of GSM Database
Feb 2011
The most widely used mobile computing device today is the Mobile phone, can be used not only for voice and data communications but also as a computing device running context aware applications. In...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
Database Based Phase Noise Compensation in CO-OFDM Transmission
Feb 2011
It is important to investigate the optical phase noise impact due to fiber linear and nonlinear effects and establish the optimal approach to estimate the phase evolution of OFDM signals in order...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
Survey on Protocols Addressing Head of Line Blocking Problem in Wireless Ad Hoc Networks Using Directional Antennas
Feb 2011
Head of Line blocking phenomenon is common in First In First Out (FIFO) nature queues. Head of line blocking problem becomes significant in wireless ad hoc networks using directional antennas as...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
Optimal Node Placement in Wireless Sensor Networks
Feb 2011
Sensor networks have been proposed for various applications due its ability for monitoring and detecting a possible hazardous event in underground mines such as fire, flammable, explosive, toxic...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
A Case for Cross Layer Design: The Impact of Physical Layer Properties on Routing Protocol Performance in MANETs
Feb 2011
In this paper, the authors evaluate the performance of routing protocols for mobile ad hoc network using different physical layer models. The results obtained shows that the performance obtained...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
White Papers
On Supporting Distributed Collaboration in Sensor Networks
Jun 2007
In sensor networks, nodes may malfunction due to the hostile environment. Therefore, dealing with node failure is a very important research issue. In this paper, the authors study distributed...
Provided by Pennsylvania State University
-
White Papers
Data Dissemination With Ring-Based Index for Sensor Networks
Jun 2007
In current sensor networks, sensor nodes are capable of not only measuring real world phenomena, but also storing, processing and transferring these measurements. Many data dissemination...
Provided by Pennsylvania State University
-
White Papers
802.11 User Fingerprinting
Sep 2007
The ubiquity of 802.11 devices and networks enables anyone to track the every move with alarming ease. Each 802.11 device transmits a globally unique and persistent MAC address and thus is...
Provided by Association for Computing Machinery
-
White Papers
Speed Testing Without Speed Tests: Estimating Achievable Download Speed From Passive Measurements
Nov 2010
How fast is the network? The speed at which real users can download content at different locations and at different times is an important metric for service providers. Knowledge of this speed...
Provided by Association for Computing Machinery
-
White Papers
Tryst: The Case for Confidential Service Discovery
Oct 2007
Local service discovery exposes sensitive information about identity, location, and relationships. The authors present empirical evidence that suggests the release of this information in wireless...
Provided by University of Colorado
-
White Papers
Probabilistic-Based Rate Adaptation for IEEE 802.11 WLANs
Jan 2008
Collision awareness has been recognized as a critical component for effective rate adaptation schemes. Recently, several collision-aware rate adaptation schemes have been proposed for IEEE 802.11...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
Energy-conservation in 802.11 WLANs via Transmission-strategy-aware Airtime Allocation
Apr 2008
In a typical 802.11 Wireless Local Area Network (WLAN), different wireless stations may communicate with the Access Point (AP) with different transmission rates, transmit-power levels, and data...
Provided by Elsevier
-
White Papers
Critical Conditions for Connected-k-Coverage in Sensor Networks
Sep 2008
Connected-k-coverage has been recognized as an effective notion for prolonging the sensor network lifetime. It requires the monitored region to be k-covered by a connected component of active...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
Study of Joint Routing and Wireless Charging Strategies in Sensor Networks
Aug 2010
In recent years, wireless charging (a.k.a. wireless energy transferring) has been recognized as a promising alternative to address the energy constraint challenge in wireless sensor networks....
Provided by Springer Science+Business Media
-
White Papers
Sensor-Aided Navigation in GPS-Denied Environments
Nov 2010
In this work the authors propose a novel approach to navigate users in GPS-denied environments with the help of sensors. The basic idea is to deploy wireless sensors over the field of interest and...
Provided by Iowa State University
-
White Papers
Multi-Round Sensor Deployment for Guaranteed Barrier Coverage
Feb 2010
Deploying wireless sensor networks to provide guaranteed barrier coverage is critical for many sensor networks applications such as intrusion detection and border surveillance. To reduce the...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
Collision-Aware Rate Adaptation in multi-rate WLANs: Design and implementation
Jun 2010
Many rate adaptation algorithms have been proposed for IEEE 802.11 Wireless LAN devices and most of them operate in an open-loop manner, i.e., the transmitter adapts its transmission rate without...
Provided by Elsevier
-
White Papers
A Simulation Study of CSMA/CA Performance in 60 GHz WPANs
Oct 2009
Recently, there has been an increasing interest in developing 60 GHz Wireless Personal Area Networks (WPANs) for short-range high-speed wireless communications. Both industrial and standardization...
Provided by Iowa State University
-
White Papers
Low-Cost Asset Tracking Using Location-Aware Camera Phones
Jul 2010
Maintaining an accurate and up-to-date inventory of one's assets is a labor-intensive, tedious, and costly operation. To ease this difficult but important task, the authors design and implement a...
Provided by Stanford University
-
White Papers
A Markov Decision Process based Flow Assignment Framework for Heterogeneous Network Access
May 2009
The authors consider a scenario where devices with multiple networking capabilities access networks with heterogeneous characteristics. In such a setting, the authors address the problem of...
Provided by Bogazici University
-
White Papers
Robust Rate Control for Heterogeneous Network Access in Multi-Homed Environments
Apr 2008
The authors investigate a novel robust flow control framework for heterogeneous network access by devices with multi-homing capabilities. Towards this end, the authors develop an optimal control...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
Dynamic Resource Modeling for Heterogeneous Wireless Networks
Mar 2009
High variability of access resources in heterogenous wireless networks and limited computing power and battery life of mobile computing devices such as smartphones call for novel approaches to...
Provided by Stanford University
-
White Papers
Network-Assisted Wireless Computing
Jun 2008
Multimedia applications for mobile devices are increasing and growing more sophisticated. Many of these applications require computationally intensive processing, such as image processing, source...
Provided by Stanford University
-
White Papers
Wireless Ad Hoc Podcasting
Aug 2007
Podcasting has become popular for dissemination of streaming contents over the Internet. It is based on software clients that query servers for updates of subscribed content feeds. Podcasting may...
Provided by Princeton University
-
White Papers
Transmitting and Gathering Streaming Data in Wireless Multimedia Sensor Networks Within Expected Network Lifetime
Jul 2008
Using multimedia sensor nodes in Wireless Sensor Networks (WSNs) can significantly enhance the capability of WSNs for event description. Different kinds of holes can easily appear in WSNs. How to...
Provided by Springer Science+Business Media
-
White Papers
Adapting BitTorrent to Wireless Ad Hoc Networks
Jun 2008
BitTorrent is one of the Internet's most efficient content distribution protocols. It is known to perform very well over the wired Internet where end-to-end performance is almost guaranteed....
Provided by Pennsylvania State University
-
White Papers
Experimentation and Performance Evaluation of Rate Adaptation Algorithms in Wireless Mesh Networks
Oct 2008
In this paper the authors present an experimental study conducted in 802.11- based mesh networks of three existing rate adaptation algorithms. The aim of this study is twofold. On the one hand,...
Provided by Association for Computing Machinery
-
White Papers
Forest Fire Modeling and Early Detection Using Wireless Sensor Networks
Jun 2008
Early detection of forest fires is the primary way of minimizing their damages. The authors present the design of a wireless sensor network for early detection of forest fires. The authors first...
Provided by Old City Publishing
-
White Papers
Transmitting Streaming Data in Wireless Multimedia Sensor Networks With Holes
Dec 2007
Within the vision of ubiquitous multimedia, using multimedia sensor nodes, such as audio, image, and video sensor nodes, in wireless sensor networks can dramatically enhance the capability of...
Provided by Association for Computing Machinery
-
White Papers
Algorithm Design for a Class of Base Station Location Problems in Sensor Networks
Aug 2008
An important characteristic for wireless sensor networks is that many performance measures (e.g., lifetime, capacity) are highly dependent upon the topology of the actual physical network. For...
Provided by Kluwer Academic Publishers
-
White Papers
On Renewable Sensor Networks With Wireless Energy Transfer
Feb 2011
Traditional wireless sensor networks are constrained by limited battery energy. Thus, finite network lifetime is widely regarded as a fundamental performance bottleneck. Recent breakthrough in the...
Provided by Virginia Polytechnic Institute and State University
-
White Papers
On the Asymptotic Capacity of Multi-Hop MIMO Ad Hoc Networks
Jan 2011
Multi-Input Multi-Output (MIMO) is a key technology to increase the capacity of wireless networks. Although there has been extensive work on MIMO at the physical and link layers, there is limited...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
Per-Node Based Optimal Power Control for Multi-Hop Cognitive Radio Networks
Oct 2009
Cognitive Radio Network (CRN) is a promising approach to improve spectrum efficiency for wireless networking. This paper investigates how to perform optimal power control on each node (or per-node...
Provided by Wuhan University
-
White Papers
Optimal Base Station Placement in Wireless Sensor Networks
Nov 2009
An important performance metric for wireless sensor networks is the so-called network lifetime, which is highly dependent upon the physical topology of the network. This is because energy...
Provided by Association for Computing Machinery
-
White Papers
An Optimal Algorithm for Relay Node Assignment in Cooperative Ad Hoc Networks
Aug 2010
Recently, cooperative communications, in the form of having each node equipped with a single antenna and exploit spatial diversity via some relay node's antenna, is shown to be a promising...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
On the Throughput of MIMO-Empowered Multi-Hop Cognitive Radio Networks
Dec 2010
Cognitive Radio (CR) and Multiple-Input Multiple-Output (MIMO) are two independent physical layer technologies that have made significant impact on wireless networking. CR operates on the...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
Theoretical Results on Base Station Movement Problem for Sensor Network
Apr 2009
The benefits of using mobile base station to prolong sensor network lifetime have been well recognized. However, due to the complexity of the problem (time-dependent network topology and traffic...
Provided by Virginia Polytechnic Institute and State University
-
White Papers
Distributed Cross-Layer Optimization for Cognitive Radio Networks
Jul 2010
This paper presents a distributed cross-layer optimization algorithm for a multi-hop cognitive radio network, with the objective of maximizing data rates for a set of user communication sessions....
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
Optimal Spectrum Sharing for Multi-Hop Software Defined Radio Networks
Mar 2008
Software Defined Radio (SDR) capitalizes advances in signal processing and radio technology and is capable of reconfiguring RF and switching to desired frequency bands. It is a frequency-agile...
Provided by Virginia Tech
-
White Papers
Delay Analysis of Maximum Weight Scheduling in Wireless Ad Hoc Networks
Feb 2009
This Paper Studies Delay Properties of the Well known Maximum Weight Scheduling Algorithm in Wireless Ad Hoc Networks. The authors Consider Wireless Networks With Either One hop or Multi-Hop...
Provided by Massachusetts Institute of Technology
-
White Papers
Assessing the Vulnerability of the Fiber Infrastructure to Disasters
Jan 2008
This paper considers the interaction between channel assignment and distributed scheduling in multi-channel multiradio Wireless Mesh Networks (WMNs). Recently, a number of distributed scheduling...
Provided by Columbia University
-
White Papers
Throughput Optimization in Mobile Backbone Networks
Mar 2010
This paper describes new algorithms for throughput optimization in a mobile backbone network. This hierarchical communication framework combines mobile backbone nodes, which have superior mobility...
Provided by Massachusetts Institute of Technology
-
White Papers
The Tradeo Between Energy Efficiency and User State Estimation Accuracy in Mobile Sensing
Aug 2009
People-centric sensing and user state recognition can provide rich contextual information for various mobile applications and services. However, continuously capturing this contextual information...
Provided by University of California
-
White Papers
Markov-Optimal Sensing Policy for User State Estimation in Mobile Devices
Apr 2010
Mobile device based human-centric sensing and user state recognition provide rich contextual information for various mobile applications and services. However, continuously capturing this...
Provided by Association for Computing Machinery
-
White Papers
Maximizing Network Utilization With Max - Min Fairness in Wireless Sensor Networks
Feb 2008
The state-of-the-art for optimal data-gathering in wireless sensor networks is to use additive increase algorithms to achieve fair rate allocation while implicity trying to maximize network...
Provided by Springer Science+Business Media
-
Whitepapers
LTE Uplink Scheduling - Flow Level Analysis
Dec 2010
Long Term Evolution (LTE) is a cellular technology developed to support data traffic at potentially high rates. It is foreseen to extend the capacity and improve the performance of current 3G...
Provided by University of Twente
-
Whitepapers
Evolving an Indoor Robotic Localization System Based on Wireless Networks
Jun 2012
This paper addresses the evolution of an Artificial Neural Network (ANN) to assist in the problem of indoor robotic localization. The authors investigate the design and building of an autonomous...
Provided by University of Bern
-
Whitepapers
Data Filtering and Aggregation in a Localisation WSN Testbed
May 2012
The main challenge in wireless networks is to optimally use the confined radio resources to support data transfer. This holds for large-scale deployments as well as for small-scale test...
Provided by Universitat Bern
-
Whitepapers
Service Descriptions and Linked Data for Integrating WSNs Into Enterprise IT
Apr 2012
This paper presents the authors' ongoing work on enterprise IT integration of sensor networks based on the idea of service descriptions and applying linked data principles to them. They argue that...
Provided by University of Bern
-
Whitepapers
Bandwidth and Gain Increment of Microstrip Patch Antenna With Shifted Elliptical Slot
Jul 2011
This paper describes the increment in Bandwidth and Gain of Rectangular Microstrip Patch antenna with Shifted Elliptical slot. First the authors have designed a Rectangular microstrip patch...
Provided by International Journal of Engineering Science and Technology
-
Whitepapers
Implementation of Object Oriented Encryption System Using Layered Cellular Automata
Jul 2011
As the technology advances day by day, sharing of information through Internet is growing rapidly, which increases new information threats and vulnerabilities and hence the need to protect...
Provided by International Journal of Engineering Science and Technology
-
Whitepapers
An Efficient Load Balancing Algorithm for Grid Computing Using Mobile Agent
Jun 2011
The development of Grid Computing technologies, dynamic resource sharing is becoming an increasingly important issue in the area of distributed, heterogeneous network. In this paper, an approach...
Provided by International Journal of Engineering Science and Technology
-
Whitepapers
Optimal Rate Based Image Transmission Scheme in Multi-Rate Wireless Sensor Networks
Jun 2011
In image transmission application over WSN energy efficiency and image quality are both important factor for joint optimization. The large size image transmission cause bottleneck in WSN due to...
Provided by International Journal of Engineering Science and Technology
-
Whitepapers
Mobile Tracking Application for Locating Friends Using LBS
Jun 2011
Now-a-days Location based services are becoming more important to mobile users. LBS are the mobile service which uses the user location information which consists of X and Y coordinates generated...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
Gateway Node-Based Greedy Routing Algorithm for Efficient Packet Forwarding in Vehicular Ad Hoc Networks
May 2011
In recent years, vehicular communications are one of the hottest research topics. It has also gained much attention in industry as well as academia. Vehicular Ad Hoc NETworks (VANETs) are advances...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
Reed-Solomon Code Performance for M-Ary Modulation Over AWGN Channel
May 2011
The primary objective of this simulation is to find the performance of Reed-Solomon code for M-ary modulation in a communication noisy channel (AWGN). M-ary Frequency Shift Keying (M-FSK)...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
Performance Evaluation of Hybrid Network Using Eigrp & OSPF for Different Applications
May 2011
Researchers have proposed a number of routing protocols in literature. Each one is based on different characteristics and properties. In this paper, the authors evaluate the performance of hybrid...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
Fine Timing Synchronization for OFDM Receiver
May 2011
The Time synchronization error effect the performance of OFDM receiver and Carrier frequency synchronization is critical to the quality of signal reception in OFDM systems. In this paper, the...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
Modern Network Security: Issues and Challenges
Jun 2011
Secure Network has now become a need of any organization. The security threats are increasing day by day and making high speed wired/wireless network and internet services, insecure and...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
The Technological Issues and Impact of Intelligent Network Strategies and Its Rapid Deployment of Services in the Communication Network
May 2011
The primary aim of the IN was to enhance the core telephony services offered by traditional telecommunications networks, which usually amounted to making and receiving voice calls, sometimes with...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
FPGA Implementation of Mac Header Block of Transmitter for Wi-Fi
Apr 2011
For the wireless communication, IEEE 802.11 is one of the protocols available. The IEEE 802.11b uses the Medium Access Control layer (MAC) for wireless local area network. These wireless local...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
Implementation of Self Diagnostic and Intelligent Power Management Protocols on Wireless Gas Sensor Node
Apr 2011
This paper presents implementation of self diagnostic, power management protocols and hardware design to enhance the hardware flexibility and sensing accuracy of sensor node. The authors have come...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
Markov Model With Absorbing State for Reliable Packet Delivery in Wireless Sensor Networks
Apr 2011
This paper presents a model for reliable packet delivery in Wireless Sensor Networks based on Discrete Parameter Markov Chain with absorbing state. The authors have demonstrated the comparison...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
Issues in Mobile Distributed Real Time Databases: Performance and Review
Apr 2011
Increase in handy and small electronic devices in computing fields; it makes the computing more popular and useful in business. Tremendous advances in wireless networks and portable computing...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
Moving Multi Target Detection Using Costas Signal
Mar 2011
In modern times, radar is used in a wide variety of applications including defense, air traffic control, meteorology, and even mapping. Radio Detection and Ranging (RADAR) involves the...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
Design and Implementation of High Performance AHB Arbiter for on Chip Bus Architecture
Mar 2011
Resolution is a big issue in SOC (System On Chip) while dealing with number of master trying to sense a single data bus. The effectiveness of a system to resolve this priority resides in its...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
A Survey on Comparative Study of Mobile Agent Platforms
Mar 2011
Mobile Agent technology is upcoming alternative to construct an elegant generation of highly distributed systems. A mobile agent can move to the network locations of the needed information...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
Low Power and Low Jitter Phase Frequency Detector for Phase Lock Loop
Mar 2011
In recent years, the design of low power and low jitter PLL for the different application has become one of the greatest challenges in high-performance Very Large Scale Integration (VLSI) design....
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
Genetic Algorithm for Multihoming Cell Assignment Problem in Wireless ATM Network
Mar 2011
In the design of cellular telecommunications networks, the handover and cabling cost management play an important role. In this paper, the authors propose a cell assignment problem, which assign...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
Terrorism Control by Using Existing Ad-Hoc Network (TCEAN)
Mar 2011
Terrorist crime takes a physical, psychological, social, political and economic toll on primary and secondary victims and society as a whole. The perpetrators of the crime go free as there are no...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
Review of Application of Ant Colony Optimization
Feb 2011
Ant colony optimization is a technique for optimization that was introduced in the early 1990's. The inspiring source of ant colony optimization is the foraging behavior of real ant colonies. Ant...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
Implementation, Management and Analysis of User Groups of GSM Database
Feb 2011
The most widely used mobile computing device today is the Mobile phone, can be used not only for voice and data communications but also as a computing device running context aware applications. In...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
Database Based Phase Noise Compensation in CO-OFDM Transmission
Feb 2011
It is important to investigate the optical phase noise impact due to fiber linear and nonlinear effects and establish the optimal approach to estimate the phase evolution of OFDM signals in order...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
Survey on Protocols Addressing Head of Line Blocking Problem in Wireless Ad Hoc Networks Using Directional Antennas
Feb 2011
Head of Line blocking phenomenon is common in First In First Out (FIFO) nature queues. Head of line blocking problem becomes significant in wireless ad hoc networks using directional antennas as...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
Optimal Node Placement in Wireless Sensor Networks
Feb 2011
Sensor networks have been proposed for various applications due its ability for monitoring and detecting a possible hazardous event in underground mines such as fire, flammable, explosive, toxic...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
A Case for Cross Layer Design: The Impact of Physical Layer Properties on Routing Protocol Performance in MANETs
Feb 2011
In this paper, the authors evaluate the performance of routing protocols for mobile ad hoc network using different physical layer models. The results obtained shows that the performance obtained...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
Comparison of Path Loss Models for Wimax in Rural Environment at 3.5 Ghz
Feb 2011
Fixed Wireless Access (FWA) networks based on WIMAX technology provide efficient packet radio interface enabling high data transmission rates. The accurate prediction of path losses is a crucial...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
Multi-Cell Non-cooperative Power Allocation Game in Relay Based OFDMA Systems
Mar 2009
The power allocation problem with co-channel interference is studied in multi-cell OFDMA cellular relay systems. The multi-cell non-cooperative power allocation game model is given in the first...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Rehabilitation of Irrigation Tank Cascade System Using Remote Sensing GIS and GPS
Feb 2011
Many of the irrigation tanks are interconnected forming cascades, allowing surplus flow of the upstream tanks(s) and return flow from the upstream command area(s) to reach the tank immediately...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
Frame Aggregation and Concatenation Schemes for IEEE EDCF 802.11e: A First Order MAC and PHY Cross-Layer Model to Estimate the Throughput
Mar 2009
The IEEE 802.11 MAC protocol has several overheads that limit the maximum net throughput. Therefore, different from PHY layer enhancements of 802.11a/.11g, the upcoming IEEE 802.11n standard will...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Joint Frequency-spatial Resource Allocation With Bipartite Matching in OFDM-MIMO Systems
Mar 2009
In this paper, the authors investigate the problem of joint frequency-spatial resource allocation for OFDM-MIMO systems. Based on Hungarian algorithm, the Kuhn-Munkres algorithm can provide the...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
A Reliable and Efficient MAC Layer Multicast Protocol in Wireless LANs
Mar 2009
In IEEE 802.11, multicast protocol is based on the basic access procedure of Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA). This protocol does not provide any recovery mechanism...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
A Novel Relay Based Load Balancing Scheme and Performance Analysis Using Markov Models
Mar 2009
In this paper, an effective relay based load balancing scheme, employing traffic transferring and channel borrowing, is presented for two-hop cellular relaying networks. In the proposed scheme,...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Coverage Improvements for Enhanced Uplink
Mar 2009
In UMTS Enhanced UpLink (EUL), 2 and 10 ms TTIs are supported, which substantially decreases latency and increases data rates compared to DCH. However, due to the shorter TTI compared to DCH,...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Cross-Layer Design for Joint PAPR Reduction and Multi-Resolution Resource Assignment
Mar 2009
PAPR is one of the major drawbacks for the widely adopted communication technique, OFDM (orthogonal frequency dividing multiplexing). There are a lot of researches proposed to reduce the PAPR at...
Provided by Institute of Electrical & Electronic Engineers
Keep Up with TechRepublic
Submit a Paper
Get your content listed in our directory!
Our directory is the largest library of vendor-supplied technical content on the Web. It’s also the first place IT decision makers turn to when researching technology solutions. Our members are already finding your competitors’ papers here - shouldn’t they find yours, too? It's FREE so click here and submit your white paper, case study, data sheet, research report, or other document today!
