i-manager's Journal on Communication Engineering and Systems (JCS)


Volume 7 Issue 4 August - October 2018

Research Paper

Multi-Objective Optimization Based Clustering in Wireless Sensor Networks Using Harmony Search Algorithm

Gaurang Raval* , Riddhi Parsania**, Sharada Valiveti***
*_***Institute of Technology, Nirma University, Ahmedabad, India.
Raval , G., Parsania, R., & Valiveti, S. (2018). Multi-Objective Optimization Based Clustering in Wireless Sensor Networks Using Harmony Search Algorithm. i-manager's Journal on Communication Engineering and Systems, 7(4), 1-12. https://doi.org/10.26634/jcs.7.4.15805

Abstract

While planning and designing the operation of the wireless sensor network, major focus is always on balancing the energy consumption, lifetime of the node and data aggregation. This may be achieved through suitable clustering technique which helps in minimizing the distance between cluster head nodes and associated cluster members. Some of the algorithms like, LEACH, GCA (Genetic Clustering Algorithm), ERP (Evolutionary Routing Protocol), EAERP (Energy Aware Evolutionary Routing Protocol), HSA (Harmony Search Algorithm) work on similar lines. Due to variety of constraints inherently present in WSN, the objective function of clustering technique is of multi-objective nature. One of the objectives may be of minimization type whereas other may be of maximization type. Due to conflicting goals of objective functions it might be difficult to find a unique and optimal solution. This paper examines multiple solutions and compares performance of these candidate solutions for their applicability in the clustering process of WSN. Pareto optimality concept has been incorporated in the proposed work for multi-objective problem of clustering in WSN. Multiple objectives based approach with customized stopping criteria in the proposed work results in to near optimal solutions with reduced simulation time requirements and improved network performance in terms of energy usage, data delivery from the sensor nodes to the base station.

Research Paper

Design of Multiband E-Shaped Patch Antenna with Hexagonal Slot for WLAN Applications

Pramod Kumar Aylapogu*
Holy Mary Institute of Technology & Science, Hyderabad, Telangana, India.
Kumar., A. P.(2018). Design of Multiband E-Shaped Patch Antenna with Hexagonal Slot for WLAN Applications. i-manager's Journal on Communication Engineering and Systems, 7(4), 13-18. https://doi.org/10.26634/jcs.7.4.16228

Abstract

The objective of E-shaped patch antenna with hexagonal slot is to operate in the ISM band for different kind of applications such as WLAN, GPS and various modern wireless systems. The posit antenna is designed using FR4 substrate having a dielectric constant of 4.4 with a thickness of 1.6mm. Probe feed technique is used for this antenna design. A parametric study was included to determine the effect of design approaches and the antenna performance. The realization of the designed antenna was analyzed in term of boost (gain), return loss and radiation pattern. The design was upsurge to confirm the best achievable result. This antenna resonates at three different frequencies at 1.6 GHz, 3.24GHz and 5.6 GHz with a reflection coefficient less than -10dB and VSWR<2.

Research Paper

Design of Test Module For Embedded System Using PSOC

Vijaya Lakshmi Balantarapu *
Department of Electronics and Communication Engineering, GVPCEW Visakhapatnam, Andhra Pradesh, India.
Balantarapu, V. L.(2018). Design of Test Module For Embedded System Using PSOC.i-manager's Journal on Communication Engineering and Systems, 7(4), 19-26. https://doi.org/10.26634/jcs.7.4.15559

Abstract

Programmable System on Chip (PSoC) devices are becoming forerunning technologies in the field of embedded systems design. The innovation of PSoC device comes from the user configurability of analog and digital array blocks. The Programmable System-On Chip devices are integrated with processors, memory and peripherals to facilitate easy and modular design in building embedded applications. This paper describes in general about the PSoC device architectures and design of a test module using the PSoC device (CY8C26443) for testing the resources like Analog to Digital and Digital to Analog Converters (ADCs and DACs) of a microprocessor based embedded system.

Research Paper

Circular Conformal Antenna Array with Enhanced Gain for Airborne Applications

M. Kalpana* , R. Ramana Reddy**, N. K. Darimireddy***
*Department of Electronics and Communication Engineering, Raghu Institute of Technology, Visakhapatnam, Andhra Pradesh, India.
**Department of Electronics and Communication Engineering, JNTUA College of Engineering (A), Pulivendula, Andhra Pradesh, India.
***Department of Electronics and Communication Engineering, Lendi Institute of Engg. & Tech, Vizianagaram, Andhra Pradesh, India..
Kalpana, M., Reddy, R. R., & Darimireddy, N. K.. (2018). Circular Conformal Antenna Array with Enhanced Gain for Airborne Applications. i-manager's Journal on Communication Engineering and Systems, 7(4), 27-32. https://doi.org/10.26634/jcs.7.4.16391

Abstract

Conformal antennas are required whenever an antenna has to conform geometrically to some shaped surface. In this paper a cylindrical conformal antenna array with line feed technique is implemented. At first, an inverted U- slotted non conformal circular patched antenna with a radius of 16.3 mm, thickness of 1.6 mm, and a substrate permittivity of 4.4 is designed to operate at 2.4 GHz. The simulated results are in close agreement with measured results. The measured S11 for non-conformal antenna is -17.4 dB at 2.4 GHz. The inverted U-slotted circular patch antenna is made conformal to cylindrically bent substrate of thickness 0.762 mm with a permittivity of 2.55 and it resonates at 2.63 GHz. Further, an array of three elements of conformal U-slotted circular patch antenna flush mounted on cylinder 1200 apart. From the results, it is evident that gain is increased with cylindrical conformal array antenna. The gain of proposed conformal array antenna is of 5.02 dB. Simulation is carried out using HFSS software.

Research Paper

Design And Analysis Of Optical Switch Using Photonic Crystal Ring Resonator

K. Parameshwari* , R. Arunkumar**, S. Robinson***
*-*** Department of Electronics and Communication Engineering, Mount Zion College of Engineering and Technology, Pudukkottai, Tamil Nadu, India.
Parameshwari, K., Arunkumar , R., & Robinson , S.(2018). Design And Analysis Of Optical Switch Using Photonic Crystal Ring Resonator. i-manager's Journal on Communication Engineering and Systems, 7(4), 33-37. https://doi.org/10.26634/jcs.7.4.16392

Abstract

In this paper, four port optical switch using photonic crystal ring resonator is designed. The optical switch parameters such as normalized power efficiency, Bit rate, Response time, delay time and crosstalk are analyzed for the proposed optical switch. The proposed optical switch is having the resonant wavelength of1550 nm.

Research Paper

A MIMO Shark-Fin Antenna for Vehicular Communication Applications

G. Vaishnav* , G. Lakshmi**, N. K. Darimireddy***, G. Renuka****
*_**** Department of Electronics and Communication Engineering, Lendi Institute of Engineering and Technology, Vizianagaram, Andhra pradesh, India.
Vaishnav, G., Lakshmi, G., Darimireddy, N. K., Renuka, G.(2018). A MIMO Shark-Fin Antenna for Vehicular Communication Applications.i-manager's Journal on Communication Engineering and Systems, 7(4), 38-41. https://doi.org/10.26634/jcs.7.4.16390

Abstract

In recent years with various developments in wireless technologies, the interfaces between an automobile and the communication around it has been evolved from simple FM radios to GPS, LTE and many more. Each of these technologies works in their own frequency bands, so there is a need to design a multi-antenna system that can efficiently receive signals on all these bands. In this project we aim to create an antenna-system for LTE band-40, GPS (L-band), WAVE (IEEE 802.11 p) and WLAN band (2300 MHz-2400 MHz, 1575.42 MHz, 5.9 GHz and 2.4 GHz respectively). A pair of rectangular patch geometries that together support these four bands. One supports the GPS and WLAN bands, while the other supports the LTE and WAVE bands. Various antenna characteristics have been simulated and measured to check the feasibility of applying the proposed system in the real world. All these antennas will be packaged in compact plastic shark-fin case for easy deployment.