Tag Archive: 'opnet tutorial'

Study on impact of Vertical Sectorization on mobility and existing MRO performance

Mobility robustness optimization (MRO) is one of the Self Organizing Network (SON) features that automatically adjusts network mobility configurations by detecting problems and correcting handover (HO) parameters. The existing MRO operation is based on stationary network deployment assumption where handover error statistics are continuously monitored between cell-pair borders as long as the cells shape and neighbor relationships are maintained. In the […]

VoIP Opnet Source Code

Comparative Analysis of VOIP Application with Different Queuing Schemes in WiMAX Using OPNET

This paper will attempt to study the effects & performance of three queuing techniques (First In First Out Queuing, Priority Queuing, Weighted Fair Queuing) with VOIP application in WiMAX throughOPNET 14.5 simulator. In recent years VOIP (Voice over Internet Protocol) is one of the most modern and interesting technology. This work inspects the execution of VOIP […]

Opportunistic Beamforming with Wireless Powered 1-bit Feedback Through Rectenna Array

This letter deals with the opportunistic beamforming (OBF) scheme for multi-antenna downlink with spatial randomness. In contrast to conventional OBF, the terminals return only 1-bit feedback, which is powered by wireless power transfer through a rectenna array. We study two fundamental topologies for the combination of the rectenna elements; the direct-current combiner and the radio-frequency […]

130-320-GHz CMOS Harmonic Down-Converters Around and Above the Cutoff Frequency

We present an analytical model, design, and measurement results on fundamental, harmonic, and subharmonic down conversion mixing approaches in 65-nm CMOS around and above the transistor cutoff frequency fmax, targeting submillimeter-wave operation. Analytical expressions for the mixing approaches are derived and compared with the simulation and measurement results. To investigate how to improve the performance […]

d2-LBDR: Distance-driven routing to handle permanent failures in 2D mesh NoCs

With the advent of deep sub-micron technology, fault-tolerant solutions are needed to keep many-core chips operative. In NoCs, Logic Based Distributed Routing (LBDR) proved to be a flexible routing framework for 2D meshes with link and router faults. However, to provide full coverage, LBDR requires a module named FORKS which replicates some messages. This imposes […]

Anti-theft energy metering for smart electrical distribution system

Accurate metering and billing of actual energy consumed by consumers is integral to commercial management of an electric utility. An aggregate technical and commercial loss in India is around 27% and this is very high in spite of various reforms and measures by electricity boards across country. One of the significant components of these losses […]

Application of a Packaged Fiber Bragg Grating Sensor to Outdoor Optical Fiber Cabinets for Environmental Monitoring

Outdoor optical fiber cabinets are generally installed along roadsides where environmental conditions, such as sun exposure, rain, and dust, can cause damage to the cabinets. Furthermore, high temperatures and unexpected impacts that cause cabinet deformation may damage the networkequipment inside the cabinets, affecting the quality of communications. This paper developed an optical fiber sensing system for […]

Evaluation of cognitive radio for mission-critical and time-critical WSAN in industrial environments under interference

The evaluation of Cognitive Radio (CR) for Wireless Sensor and Actuator Networks (WSANs) in industrial wireless automation applications is presented in this contribution. Current wireless solutions do not ensure enough performance for hard real-time and reliability requirements, based on time-critical data traffic. These industrial applications are characterized by harsh environments, where the robustness of wireless […]

An area packet scheduler to mitigate coexistence issues in a WPAN/WLAN based hetergeneous network

Energy constrained devices, operating on short-range wireless networking standards such as IEEE802.15.4 and IEEE802.11x, are expected to be deployed for the IoT (Internet of Things) applications. However, co-located deployment of such devices based on different standards using the same 2.4 GHz license free Industrial, Scientific and Medical (ISM) spectrum, introduces coexistence issues, specifically intra-and inter […]