International Journal of Sensors Wireless Communications and Control - Volume 10, Issue 3, 2020

Background & Objective: To analyze the performance of MIMO-OFDM system, VBLAST detection suffers from computational complexity as well as high BER. Methods: To improve the BER performance and to reduce the computational complexity of receiver, we propose a modified VBLAST detection in MIMO-OFDM Systems. Results: Simulation using MATLAB shows the improvement in computational complexity and in BER. C Read More

Background & Objective: Mobile ad hoc networks are defined as highly dynamic, leading to frequent disconnections and changing topologies. The energy and stability of power limited nodes needs to be managed while designing the protocol & clustering helps in reducing the problem of network congestion due to information overhead in large sized networks. Multipath routing helps in balancing the load and node failures Read More

Background & Objective: A sensor network is composed of a large number of sensor nodes that are deployed to perform measurement and/or command and control in a field. Sensor nodes are battery powered devices and replacement or recharging of their batteries may not be feasible. One of the major challenges with sensory wireless networks is excessive energy consumption in nodes. Clustering is one of the methods Read More

Background: Service Oriented Architecture is one of the acceptable frameworks for application development which provides better functionality such as composability, reliability, reusability, distributed deployment and interoperability which meet enterprises dynamics. So, SOA framework is a point of attraction for consumers. Objectives: However, SOA framework fails to provide security at a granular level. Along with SOA func Read More

Background & Objective: Cloud computing emerges out as a new way of computing which enables the users to fulfill their computation need using the underlying computing resources like software, memory, computing nodes or machines without owning them purely on the basis of pay-per-use that too round the clock and from anywhere. People defined this as the extension of the existing technologies like parallel computing, dis Read More

Background & Objective: India is one of the foremost agricultural producers in the world; on the other hand, the consumption of water for agricultural purposes in India has been among the highest in the world. Indiscriminate use of inadequate irrigation techniques has led to a critical water deficit in the country. Now with the development of (IoT) Precision Farming and Precision Irrigation are becoming very popular. Thi Read More

Background & Objective: This paper presents a wireless sensor network for monitoring field parameters inside a low-cost polyhouse. The micro climate inside a polyhouse differs from that on the outside, which provides a favorable condition for unseasonal crops. Methods: The physical parameters associated with the polyhouse’s microclimate were monitored by a reliable low-cost wireless sensor network, which in turn Read More

Background: Wireless Sensor Network (WSN) is a useful integral part of mission and safety-critical systems, whose failure may result in injury, loss of life, serious environmental damage and/or may result in the failure of some goal-directed activities. Its major challenges are reliability, and security related issues during data delivery. To mitigate these, the development of secure routing protocols, which are capable of optimu Read More

Background & Objective: Detecting and mitigating Distributed Denial of Service (DDoS) attacks is a serious problem. In addition, new features and network deployments such as Software- Defined Networking (SDN) may open the door for new threats that did not previously exist. Recent publications and patent are reviewed to find new techniques developed for integrating different mechanisms to secure networks against Read More

Background and Objective: Software-Defined Networks (SDN) decouple the responsibility of data plane, control plane and aggregates responsibilities at the controller. The controller manages all the requests generated from distributed switches to get the optimal path for sending data from source to destination using load balancing algorithms. The guarantee of packet reachability is a major challenge in real time s Read More

Background: Nowadays, in military and border surveillance application, the WSNs become an effective part of the command and control system. This requires an efficient type of cryptography. Due to small size requirement, elliptic curve becomes the most suitable for such purpose. Objective: The encryption operation, in turn, increases the power required to transmit data through the network. The aim of this work is to reduce Read More

Background & Objective: This paper considers the chattering problem of sliding mode control in the presence of delay in robot manipulator causing chaos in such electromechanical systems. Fractional calculus was used in order to produce a novel sliding mode to eliminate chatter. To realize the control of a class of chaotic systems in master-slave configuration, a novel fractional dynamic sliding mode control scheme is presented Read More

Aims: Substrate Integrated Waveguide (SIW) based bandpass filter is presented in this paper. Objectives: In the proposed design, bandpass response is achieved by combining SIW structure with elliptic shaped Defected Ground Structure (DGS) cells. Methods: Simulation of the proposed structure is carried out using commercial software Ansoft High Frequency Structure Simulator (HFSS), which is a three-dimensional freq Read More

Aims: In this paper, a novel Substrate Integrated Waveguide (SIW) based filtering power divider is presented. Objectives: In the proposed power divider, filtering response is achieved by interleaving inductive posts in the SIW structure. The proposed structure reduces the size and the cost of the system, as the structure performs the function of the power divider as well as the function of a filter. Methods: Simulation of the pro Read More