A Novel 2D Urban Map Search Framework Based on Attributed Graph Matching

This paper presents a novel framework for urban map search. The search capabilities of the existing GIS systems are restricted to text-based search, neglecting significant topological and semantic information. We propose a framework that aims to extend the search capabilities by offering sketch-based search. Initially, the urban maps are processed in an offline step in […]

Performance Investigation of Reactive AODV and Hybrid GRP Routing Protocols under Influence of IEEE 802.11n MANET

In modern technology era, the endeavor of MANET is to provide proficient wireless communication by adopting adhoc routing functionality in mobile nodes. The MANET nodes result in frequent network topology changes, making routing a challenging task. In past, Reactive routing approaches are used as a popular technique that provides scalable solution to relatively large MANET […]

Implementation and performance comparison of two similar Zig-Bee 802.15.4 WPANs in Mobile Subnet and satellite subnet using OPNET Modeler

The latter half of the twenty first century in India will witness the nascent technological advancements and the same will offer a highly complex and competitive environment. Service providers will be experimenting new options for ensuring seamless services in minimum time with the motif of spearheading competitiveness. Wireless technology revolutionized technical environment by offering many […]

Performance Evaluation of Zig-Bee 802.15.4 WPAN Designed in Satellite Subnet Using Opnet Modeler

In this advanced generation of science and technologies, nothing seems to be impossible. The new emerging technologies have made every dream possible. This paper deals with Zig-Bee wireless technique. The Zig-Bee wireless personal area networks (WPANs) are ad-hoc low power networks that are basically applicable in short range distance in low cost. These networks are […]

Research on Tactical Internet Battlefield Environment Modeling Based on OPNET

Making use of TMM of OPNET simulation tools and integrating the operational environment and mission scenario with the DSR routing algorithm of the mobile Ad Hoc network, this article presents a more realistic model of the tactical internet battlefield environment. It offers a good simulation environment for the tactical internet and information warfare.

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 […]

Reconfigurable body worn antenna for Bluetooth and WiMAX

The paper presents a frequency reconfigurable microstrip patch antenna printed on a textile substrate. It can be tuned by using active circuitry between Bluetooth and WiMAX operating at 2.4 GHz and 2.5 GHz frequency bands respectively. Indigo blue jeans having relative permittivity 1.68 with thickness 1 mm is used as a textile substrate. The frequency […]

Agent based State Estimation in Smart Distribution Grid

A novel agent based static state estimation strategy for a specific class of physical systems is proposed. Physical systems, (e.g. smart distribution grid) which are well modeled using decentralized measurements and distributed state-space formulations are considered. In such systems, sensor nodes acting as agents estimate only a subset of states, instead of evaluating local estimates […]