Browsing Computer Science & Communications by Title
Now showing items 45-64 of 95
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MAEB: Routing Protocol for IoT Healthcare
(Scientific Research Publishing, 2013-04)Healthcare is one of the most promising applications of Internet of Things. This paper describes a prototype for the IoT healthcare systems. We propose the Movement-Aided Energy-Balance (MAEB) routing protocol. The movement ... -
Managing Computing Infrastructure for IoT Data
(Scientific Research Publishing, 2014-07)Digital data have become a torrent engulfing every area of business, science and engineering disciplines, gushing into every economy, every organization and every user of digital technology. In the age of big data, deriving ... -
Measurement of Rain Attenuation in Terahertz Wave Range
(Scientific Research Publishing, 2011-07)ain attenuation at 355.2 GHz in the terahertz wave range was measured with our new 355.2 GHz measuring system under rainfall intensities up to 25 mm/hr. Rain attenuation coefficients were also calculated using four ... -
Microstrip Ultra-Wideband Filter with Flexible Notch Characteristics
(Scientific Research Publishing, 2012-01)A microstrip ultra-wideband (UWB) filter with unique shape, compactness, simplicity of operation and flexible notch characteristics is introduced. It is based on the fundamental and harmonic characteristics of a 50 Ohm ... -
Mobile Ad-Hoc Networks Applications and Its Challenges
(Scientific Research Publishing, 2016-07)Mobile Ad-Hoc Network (MANET) is an infrastructure less wireless network of autonomous collection of mobile nodes (Smart phones, Laptops, iPads, PDAs etc.). Network is self-configured to reconstruct its topology and routing ... -
MoM Analysis and Design of a Compact Coaxial-to-Microstrip Directional Coupler
(Scientific Research Publishing, 2011-04)In order to overcome the main drawbacks of coaxial, waveguide, and stripline couplers, the analysis and the design of a compact coaxial-to-microstrip directional coupler convenient for power and antenna control application, ... -
Motion Planning System for Bin Picking Using 3-D Point Cloud
(Scientific Research Publishing, 2016-08)In this paper, we propose a motion planning system for bin picking using 3-D point cloud. The situation that the objects are put miscellaneously like the inside in a house is assumed. In the home, the equipment which makes ... -
A New Adaptive EDCA Approach to QoS of Wireless Communications
(Scientific Research Publishing, 2010-07)Under the background of intelligent transportation application, QoS for various services is different in wireless com-munication. Based on the MAC layer protocol, this paper analyzes the QoS in IEEE 802.11 MAC protocol ... -
A New Algorithm of Mobile Node Localization Based on RSSI
(Scientific Research Publishing, 2011-04)Position mobile node coordinate is a key component to determine the accuracy and efficiency of positioning in wireless sensor networks. Flexible location algorithm admits to adjust the accuracy and time cost of positioning ... -
A Novel Ultra-Wideband Monopole Antenna with Band-Stop Characteristic
(Scientific Research Publishing, 2011-10)In this letter, a simple monopole antenna with variable band-notched characteristic for ultra wide band (UWB) function is proposed. Two L-shaped quarter-waveguide resonators coupled to the ground plane with two shorting ... -
On the Design of Circular Fractal Antenna with U-Shape Slot in CPW-Feed
(Scientific Research Publishing, 2010-10)new ultawideband circular fractal antenna with notched-band characteristics is presented. A notched-band characteristic is achieved by employing a U-shape slot in 50 Ω feed lines. The ultra-wideband impedance matching and ... -
Optimal M-BCJR Turbo Decoding: The Z-MAP Algorithm
(Scientific Research Publishing, 2011-10)In this paper, we propose a novel idea for improvement performances of the leader M-BCJR algorithm functioning in low complexity. The basic idea consists to localize error instant possibility, and then increase the complexity ... -
Optimal Territorial Resources Placement for Multipurpose Wireless Services Using Genetic Algorithms
(Scientific Research Publishing, 2011-07)This paper presents a study for finding a solution to the placement of territorial resources for multipurpose wireless services considering also the restrictions imposed by the orography of the territory itself. To solve ... -
Optimization of Impedance Plane Reducing Coupling between Antennas
(Scientific Research Publishing, 2011-01)This paper provides a solution for the design optimization of two-dimensional impedance structures for a given elec-tromagnetic field distribution. These structures must provide electromagnetic compatibility between antennas ... -
Optimization of Threshold for Energy Based Spectrum Sensing Using Differential Evolution
(Scientific Research Publishing, 2011-07)Interference threshold based on energy setting in cognitive radios is a non-convex optimization problem [4]. The convergence of optimization techniques like Genetic algorithm (GA) takes several iterations to fix this ... -
P2P Model Based on Isolated Broadcast Domains
(Scientific Research Publishing, 2012-04)Resource location is the most important issue for Peer-to-Peer (P2P) system and flooding is the fundamental mechanism for unstructured P2P systems. Redundant messages will exponential growth with flooding scope increasing ... -
The Performance Gain of Cognitive Radio in Adaptive Modulation Scheme
(Scientific Research Publishing, 2010-07)Cognitive radio is considered as one of the main enablers for provisioning dynamic and flexible spectrum/channel allocation in wireless communications. The reliable data transmission over cognitive radio should employ ... -
Performance of Double-Pole Four-Throw Double-Gate RF CMOS Switch in 45-nm Technology
(Scientific Research Publishing, 2010-10)In this paper, we have investigated the design parameters of RF CMOS switch, which will be used for the wireless tele-communication systems. A double-pole four-throw double-gate radio-frequency complementary-metal-oxide-semicon- ... -
Performance Study of Multi-Path in VANETs and Their Impact on Routing Protocols
(Scientific Research Publishing, 2011-07)Modeling complicated vehicular traffic behavior and analyzing effects on the communication performance of routing protocols taken by environmental factors have been a challenging task for the past several years. In this ... -
Performance Tradeoff with Routing Protocols for Radio Models in Wireless Sensor Networks
(Scientific Research Publishing, 2011-04)In this paper, we have simulated and evaluated the performance tradeoff with routing protocols: Constrained Flooding, the Real-Time Search and the Adaptive Tree on MICA and MICAz platform with different radio models using ...