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tools & techniques
(23307 results)-
Whitepapers
Power Spectral Density Analysis of WLAN Based OFDM System
April 1, 2013 12:00am PDT
OFDM is a technique used in modern broadband wireless communications systems. OFDM has been adopted for wireless standards such as IEEE 802.11a. In this paper, different Power Spectral Density...
Provided by: International Journal of Computer Applications
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Whitepapers
Correlation Based Fingerprint Image Segmentation
April 1, 2013 12:00am PDT
In this paper, a correlation based fingerprint image segmentation technique is presented. Segmented is a useful image processing tool generally used in machine vision applications in the pattern...
Provided by: International Journal of Computer Applications
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Whitepapers
Implementation of Pulse Shaping Techniques in OFDM System
April 1, 2013 12:00am PDT
Tremendous improvement has been made possible in wireless technology due to success of OFDM system which is a multi carrier modulation technique with capability to support high data rates. Despite...
Provided by: International Journal of Computer Applications
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Whitepapers
An Efficient Dictionary and Lingual Keyword Based Secure Search Scheme in Cloud Storage
April 1, 2013 12:00am PDT
Cloud computing has become the more accepted answer to the current information needs. With today's enterprises operating across multilingual and multicultural spectrum, cloud computing search...
Provided by: International Journal of Computer Applications
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Whitepapers
Performance Comparison of Different Pilot Aided Channel Estimation Techniques for OFDM IEEE 802.11e (Mobile Wimax) Systems
April 1, 2013 12:00am PDT
Orthogonal Frequency Division Multiplexing (OFDM) modulation is a promising technique for achieving the high bit rates required for a wireless multimedia service. In this paper, the authors...
Provided by: International Journal of Computer Applications
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Whitepapers
Broadband Slot Cut Gap-Coupled Proximity Fed E-Shaped Microstrip Antenna
April 1, 2013 12:00am PDT
The more commonly used techniques to realize broadband Micro-Strip Antenna (MSA) is by cutting the slot at an appropriate position inside the patch. Bandwidth of proximity fed E-shaped Micro-Strip...
Provided by: International Journal of Computer Applications
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Whitepapers
DBET: Demand Based Energy efficient Topology Using P-MANET
April 1, 2013 12:00am PDT
Energy efficient topology in Ad-hoc networks is achieved mainly in two different ways. In the first method, network maintains a small number of nodes to form a connected backbone and the remaining...
Provided by: International Journal of Computer Applications
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Whitepapers
Bitmap Index as Effective Indexing for Low Cardinality Column in Data Warehouse
April 1, 2013 12:00am PDT
Speeding up query processing is a sensitive issue in the data warehouse. Using some mechanisms like summary tables and indexes can be a solution to this problem. However, though the performance...
Provided by: International Journal of Computer Applications
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Whitepapers
A Review of Packet Marking IP Traceback Schemes
April 1, 2013 12:00am PDT
Today, Internet has become the primary source of communication in networks. The attack on its infrastructure poses a great challenge in its expansion. Distributed Denial of Service attack is a...
Provided by: International Journal of Computer Applications
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Whitepapers
Improved QoS by Clustering Identically Modulated WSN Nodes using Reprogrammable High Speed Architecture
April 1, 2013 12:00am PDT
A technique for grouping different modulation schemes in a nodal management network (by clustering identically modulated nodes) is presented in this paper. The modulation tracking scheme localizes...
Provided by: International Journal of Computer Applications
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Whitepapers
Design and Simulation of Hartley Based Multi Orthogonal Band OFDM
April 1, 2013 12:00am PDT
Recent advances in wireless communication systems have made use of OFDM technique to achieve high data rate transmission. The sensitivity to frequency offset between the carrier frequencies of the...
Provided by: International Journal of Computer Applications
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Whitepapers
A Similarity Based Trust and Reputation Management Framework for VANETs
April 1, 2013 12:00am PDT
A trust and reputation management framework for VANETs (Vehicular Ad Hoc NETworks) is proposed. In the framework, a similarity mining technique is used for identifying similar messages or similar...
Provided by: Science and Development Network (SciDev.Net)
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Whitepapers
Mutation Analysis for Security
April 1, 2013 12:00am PDT
Security has become, now-a-days, a major concern for the organizations as the majority of its applications are exposed to Internet, which increases the threats of security considerably. Thus, the...
Provided by: University Mohammed V Souissi
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Whitepapers
Throughput and Error State Performance of AMC Scheme in 3G Wireless Systems
April 1, 2013 12:00am PDT
In this paper, adaptive modulation and coding technique for OFDM is proposed. In this technique it is possible to switch the modulation order and coding rate in order to better match the channel...
Provided by: IOSR Journal of Engineering
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Whitepapers
Defending Against Replication Node Attack in Wireless Sensor Network
April 1, 2013 12:00am PDT
In Wireless Sensor network, nodes are interconnected and information is shared among them. In a situation, many attacks are involved to misuse the wireless sensor network. One of the attacks is...
Provided by: IOSR Journal of Engineering
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Whitepapers
Implementation of Tree Based Itinerary Design (TBID) Algorithm Over Wireless Sensor Networks by Using Mobile Agent
April 1, 2013 12:00am PDT
In many sensor network applications viz., environmental monitoring, spatial exploration and battlefield surveillance, sensed data is aggregated and transmitted to the sinks for analysis. Thus,...
Provided by: IOSR Journal of Engineering
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Whitepapers
Performance Improvement Techniques for Customized Data Warehouse
April 1, 2013 12:00am PDT
In this paper, the authors present performance improvement techniques for data retrieval from customized data warehouses for efficient querying and On-Line Analytical Processing (OLAP) in relation...
Provided by: IOSR Journal of Engineering
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Whitepapers
Enhancement in Elimination of Security Threads using Trusted Proactive Routing
April 1, 2013 12:00am PDT
Ad hoc networks have been used in many applications which mandate a dynamic setup in the absence of fixed infrastructure. The design of ad hoc network has been mainly focuses on proper operation....
Provided by: IOSR Journal of Engineering
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Whitepapers
Forensic Analysis of Instant Messenger Applications on Android Devices
April 1, 2013 12:00am PDT
The modern day Smartphone's have built in apps like "WhatsApp & Viber" which allow users to exchange instant messages, share videos, audio's and images via Smartphone's instead of relying on their...
Provided by: International Journal of Computer Applications
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Whitepapers
Dynamic Bandwidth Allocation in Cloud Computing
April 1, 2013 12:00am PDT
Cloud Computing is a use of computing resources that is delivered as a service over a network. Sharing the data in the cloud depends on the network performance of the data centers. Bandwidth...
Provided by: International Journal of Computer Networks and Wireless Communications (IJCNWC)
