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Cyber Journals
(57 results)-
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RFID Reader Deployment Strategy Using Genetic Algorithm
September 1, 2011, 12:00am PDT
Recently, auto Identification system develop strongly and apply a lot of fieds. The almost system in there is Radio Frequency IDentification (RFID) system. According to the chip and wireless...
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Wavelet Transform Effect on MIMO-OFDM System Performance
September 1, 2011, 12:00am PDT
Although latest generations for mobile communications systems have provided flexible expansion in system capacity, they faced great challenge in performance enhancement especially in the presence...
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WPAN Interference Cancellation From OFDM Based WLAN : Strategic Comparisons of Coexistence Techniques
September 1, 2011, 12:00am PDT
WLAN and WPAN operate in the same 2.4GHz ISM band. So whenever they operate nearby interfere with each other, results in performance degradation for both the system in terms of bit error rate or...
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Mismatched Wavelets: Information Hiding and Edge Detection
August 1, 2011, 12:00am PDT
Wavelets and other tight frames have been used for numerous signal and image processing applications. These transforms consist of two or more filters that are applied in "Analysis" and "Synthesis"...
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Protocol Proxy for OSPF Emulation
August 1, 2011, 12:00am PDT
This paper proposes a protocol proxy scheme that can emulate the Open Shortest Path First (OSPF) protocol in an effective and flexible manner. It is implemented in the authors' developed network...
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An Alternative Backup Route With a Loop Free Routing Table Short Distance in Adhoc Wireless
July 1, 2011, 12:00am PDT
In a Mobile Ad hoc wireless NETworks (MANET), nodes communicate with each other via packet radios. However, in a MANET network, the mobility of the nodes and power limitations lead to an increased...
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An Improved Window Based on Cosine Hyperbolic Function
July 1, 2011, 12:00am PDT
A new simple form window with the application of FIR filter design based on the exponential function is proposed in this paper. An improved window having a closed simple formula which is symmetric...
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Optimal Power Allocation for Correlated Rayleigh Fading MIMO Wireless Systems With Statistic Information Feedback
July 1, 2011, 12:00am PDT
In telecommunication field, channel capacity is the tightest upper bound on the amount of information that can be reliably transmitted over a communications channel. In this paper, the authors...
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Performance Evaluation of MIMO Based WiMAX System
July 1, 2011, 12:00am PDT
In mobile communication system signals transmitted by a mobile station are reflected and scattered by the surrounding objects. Hence, the signals travel multiple paths, of different lengths and...
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Survivable Multi-Cost Networks With k Disjoint Paths
July 1, 2011, 12:00am PDT
With the development of network technology, growth of large amount of data increases over networks and a failure mainly affects data loss. As a result, the survivable system is developed as a...
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The Unused Capacity Minimization in WDM Mesh Networks With Sharing Optical Path Protection by Finite Differences
July 1, 2011, 12:00am PDT
In this paper, the shared protection method will be examined with the linear function method and the accurate polynomial function method of the finite differences. The merit of these methods is...
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Transmission of Delay Sensitive Data Over Non- QoS Enabled WANs
July 1, 2011, 12:00am PDT
Vendors of Voice Over IP (VOIP) and other delay sensitive systems have always marketed their products with the stipulation that performance could be drastically affected unless end-to-end Quality...
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Unified Analysis of Optimized Relay-Based Wireless Systems
July 1, 2011, 12:00am PDT
In this paper, the authors consider the analysis of cooperative relay-based amplify-and-forward system in terms of Shannon capacity, probability of error, and outage probability over fading...
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A Hybrid Scheme With Impressive QoS Over Telecommunication Networks
June 1, 2011, 12:00am PDT
This paper introduced and analyzed a Hybrid scheme which is designed to improve the performance of back bone telecommunication networks. It is compared to the regular traffic shaping and policing...
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Computing the Configuration Space on Reconfiguration Mesh Multiprocessors
June 1, 2011, 12:00am PDT
Configuration space computation is a transformation process that reduces a robot to a single reference point by expanding obstacles on the image plane. The obstacles can be expanded by inverting...
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A Scheme to Estimate One-Way Delay Variations for Diagnosing Network Traffic Conditions
August 1, 2011, 12:00am PDT
Real-time applications over the Internet, such as Voice-over-IP and video streaming services, are increasingly being applied to practical communication services so how to evaluate service...
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A Simple Estimation Scheme for Upper Bound of Link Utilization Based on RTT Measurement
August 1, 2011, 12:00am PDT
This paper proposes a scheme based on Round-Trip Time (RTT) measurement to estimate the upper bound of link utilization. In conventional active measurement schemes, probe packets are temporarily...
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A Low Voltage Highly Linear CMOS Down Conversion Mixer
December 1, 2011, 12:00am PST
In this paper a new low voltage CMOS mixer is proposed which is highly linear. Linearity is provided by adjusting the value of a resistor and sizing the aspect ratio of a PMOS transistor at the RF...
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A 12b 100MS/s Highly Power Efficient Pipelined ADC for Communication Applications
December 1, 2011, 12:00am PST
12 bits 100 MS/s pipelined ADC with a high ENOB is proposed for communication applications especially for Wireless Networks. The proposed ADC achieves low power, high resolution and high speed...
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Real-Time Measurement of Flows Classified According to Their Application for IP Networks
December 1, 2011, 12:00am PST
In the management of Internet Protocol networks, the number of flows is an important performance metric because it has useful applications in areas such as port scan detection, denial-of-service...
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Performance of Random Relaying of MDS Codeword Blocks in Cooperative Multi-Hop Networks Over Random Error Channels
December 1, 2011, 12:00am PST
The authors propose random relaying of MDS codeword blocks in cooperative multi-hop networks and evaluate its performance over random error channels by means of an absorbing Markov chain. The...
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An Indoor Tracking System Based on Bluetooth Technology
December 1, 2011, 12:00am PST
Implementations of tracking systems have become prevalent issues in modern technology due to its advantage of location detection of objects. Objects are usually tracked using trackers based on...
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Performance Evaluation of Stochastic Algorithms for Linear Antenna Arrays Synthesis Under Constrained Conditions
May 1, 2011, 12:00am PDT
Particle Swarm Optimization (PSO) is a high performance optimization technique recently introduced to solve antenna array synthesis problems to handle multiple degrees of freedom. An important...
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Cycle Analysis in Expanded QC LDPC Codes
May 1, 2011, 12:00am PDT
A Quasi-Cyclic (QC) Low-Density Parity-Check (LDPC) code can be viewed as the protograph code with circulant permutation matrices. In this paper, the authors use permutation matrices to form...
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Analysis of the Latest Trends in Mobile Commerce Using the NFC Technology
May 1, 2011, 12:00am PDT
The aim of this paper is to propose new mobile commerce proximity payment architecture, based on the analysis of existing solutions and current and future market needs. The idea is to change a...
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Enhanced Iterative-Based ZP-OFDM Receiver in Multi-Relay Cooperative Networks
August 1, 2011, 12:00am PDT
Zero-Padding Orthogonal Frequency Division Multiplexing (ZP-OFDM) has recently been introduced to avoid coded-OFDM's high decoding complexity. Various sub-optimal ZP-OFDM receivers have been...
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Autonomic Computing Applied to Network Security: A Survey
November 1, 2011, 12:00am PDT
The constant increase in the number of computer network attack attempts has pushed researchers community to devise better security strategies. However, the rapid growth both in quantity and...
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A New Antenna Selection Algorithm in Cognitive MIMO Systems
November 1, 2011, 12:00am PDT
Utilization of multiple antenna transmission technique is a potential solution to co-channel interference problems in coexisting environments. However, additional system cost and complexities...
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Integration of Protocols FHMIPv6/MPLS in Hybrid Networks
February 6, 2011, 12:00am PST
Currently, the authors are working on the integration of the FHMIPv6/MPLS protocol to provide QoS in hybrids scenarios the quality of service values were obtained when a handover occurred and the...
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Security Risk Assessment Framework for Network Layer
January 2, 2011, 12:00am PST
Security assessment is a crucial process in the application deployment. The network layer plays an important role in the computer infrastructure. Network infrastructure generally consists of...
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Reconfigurable Optimized WCDMA DDC for Software Defined Radios
January 2, 2011, 12:00am PST
In this paper an optimized approach is presented to design & implement WCDMA based digital down converter for software defined radios. The proposed DDC is designed using Park McClellan algorithm...
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FPGA Based Efficient WCDMA DUC for Software Radios
January 1, 2011, 12:00am PST
This paper presents an efficient method to design & implement WCDMA based digital up converter for Software Radios. The Park McClellan algorithm has been proposed for optimal filter length to...
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Securing the OLSR Routing Protocol for Ad Hoc Detecting and Avoiding Wormhole Attack
May 23, 2011, 12:00am PDT
A major problem facing researchers today in the field of ad hoc networks is safety and preservation of the integrity of such networks. Among the many attacks recorded in the literature, wormhole...
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Design and Analysis of Low Frequency Transmitter and Receiver for an Insecure Shallow Water Acoustic Channel of the Persian Gulf
May 25, 2011, 12:00am PDT
Underwater acoustic communications presents unique challenges that are being overcome with advances in signal processing algorithms and related hardware technologies. The accurate simulation and...
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