Design, Simulation and Testing of Digital Beacon Receiver using Ads Software

Volume 7 Issue 3 May - July 2018

Research Paper

Design, Simulation and Testing of Digital Beacon Receiver using Ads Software

Revathi*, Parvathi. P**, Hemachandra. G***, V. M. S. N Pavan Kumar Ch****

* PG Scholar, Department of Electronics and Communication Engineering, Sri Vidyanikethan Engineering College, Tirupati, Andhra Pradesh, India.

** Scientist/Engineer-SE, National Atmospheric Research Laboratory, Gadanki, Tirupati, Andhra Pradesh, India.

***-**** Assistant Professor, Department of Electronics and Communication Engineering, Sri Vidyanikethan Engineering College, Tirupati, Andhra Pradesh, India.

Revathi.V., Parvathi. P., Hemachandra. G., and Kumar Ch.V.M.S.N.P. (2018). Design, Simulation and Testing of Digital Beacon Receiver using Ads Software. i-manager’s Journal on Communication Engineering and Systems, 7(3), 16-27.https://doi.org/10.26634/jcs.7.3.14310

Abstract

Design and simulation of Digital Beacon Receiver has to locate the beacon signals and measure its power levels. It was designed by using Agilent Technologies, Advanced Design System (ADS) software. Some natural sources, such as full of atmosphere gases, carbon dioxide, hydrocarbon, haze, downpour, dust, mist and some other helium and nitrogen gases exists in different layers of the atmosphere, including troposphere, ionosphere can cause some obliteration on the accessibility and quality of downlink examine periods. This climate incident cause errors and difficulties, such as attenuation changes in polarization, fading delay, and dispersion. Mostly at higher band of frequencies such as Ku and Ka bands, the effects of that transmission phenomenon will not be nelegectable and they should be measured. It is a consistent and protected satellite communication. Mathematical calculations for both theoretical and experimental transmission is studied and by different frequencies. Indian Space Research Organization (ISRO) has setup two different beacon signals at 20.2 GHz and 30.5 GHz on board GSAT-14 for this explanation. There is a different method to study, accurate rain attenuation distribution and satellite wave transmission, such as radar, radiometer, signal beacon method, and satellite beacon receiver. Satellite beacon receiver is one of most important responsible and reasonably priced methods in comparison with the other methods. Digital receiver estimates the signal strength of the beacon signals at 20.2 GHz and 30.5 GHz, for both polarizations (co-polar and cross-polar amplitude measurements). This paper gives the design simulation of the receiver setup using Harmonic Balance (HB), S-Parameter, AC simulation, power budget analysis, Bandpass filter design, and Fast Fourier Transform (FFT) design simulations. The simulation results match with 98% of tested results.

Reduced End-To-End Delay for Manets using SHSP-EA3ACK Algorithm

Volume 7 Issue 3 May - July 2018

Research Paper

Reduced End-To-End Delay for Manets using SHSP-EA3ACK Algorithm

K. Thamizhmaran*, M. Anitha**, Alamelu Nachiappan***

* Assistant Professor, Department of Electronics and Communication Engineering, Annamalai University, Tamil Nadu, India.

** Associate Professor, Department of Electrical and Electronics Engineering, Annamalai University, Tamil Nadu, India.

*** Professor and Head, Department of Electrical and Electronics Engineering, Pondicherry Engineering College, Puducherry, India.

Thamizhmaran.K., Anitha. M., and Nachiappan.A. (2018). Reduced End-To-End Delay for Manets using SHSP-EA3ACK Algorithm. i-manager’s Journal on Communication Engineering and Systems, 7(3), 9-15. https://doi.org/10.26634/jcs.7.3.14309

Abstract

Mobile Ad-hoc Networks (MANETs) are the significant technologies among various wireless communication technologies, where all the nodes are mobile and can be connected dynamically using wireless link in a random manner. The aim of in this suggested work is to avoid the attacker from forging acknowledgment packets using Enhanced Adaptive 3 Acknowledgment (EA3ACK). So, the authors have introduced a new technique of Intrusion Detection System (IDS) named EA3ACK using EAACK with Secure Hybrid Shortest Path Routing (SHSP), which is designed only for MANETs for reducing delay. Acknowledge method is implemented to rectify any type of attacks on the network with SHSP routing algorithm besides rectifying weekness results of previous work through the Network Simulator-2. Finally in this proposed scheme, a secure communication is provided with reducing overhead, delay, and packet loss using EA3ACK with SHSP algorithm increasing the efficiency of network topology.

A Novel Design of Circular Patch Antenna Loaded with Elliptical Slots for Wireless Communications

Volume 7 Issue 3 May - July 2018

Research Paper

A Novel Design of Circular Patch Antenna Loaded with Elliptical Slots for Wireless Communications

Sumeet Singh Bhatia*, Monika Sharma**, Shashi B. Rana***

* Department of Electronics and Communication Engineering, Yadavindra College of Engineering, Talwandi Sabo, Bathinda, Punjab, India.

** PG Scholar, Department of Electronics and Communication Engineering, Guru Nanak Dev University, Regional Campus, Gurdaspur, Punjab, India.

*** Assistant Professor, Department of Electronics and Communication Engineering, Guru Nanak Dev University, Regional Campus, Gurdaspur, Punjab, India.

Bhatia S.S., Sharma. M., and Rana. S.B. (2018). A Novel Design of Circular Patch Antenna Loaded with Elliptical Slots for Wireless Communications. i-manager’s Journal on Communication Engineering and Systems, 7(3), 1-8.https://doi.org/10.26634/jcs.7.3.14172

Abstract

In this paper, elliptical slots loaded circular patch antenna for wireless communications has been investigated. The proposed antenna is modified by varying the length of ground plane to increase the impedance bandwidth over the frequency range of 1 - 10 GHz. Simulated results of proposed antenna exhibits the bandwidth of 3.34 GHz (1.46 - 4.80 GHz) and 3.01 GHz (5.05 - 8.06 GHz). The proposed antenna can be used in various wireless applications, covering the Global System for Mobile (GSM) standards (DCS 1.71 - 1.88 GHz and PCS 1.85 - 1.99 GHz), UMTS (1.92 - 2.17 GHz), Bluetooth (2.41 - 2.49 GHz) of ISM band, 2.45 GHz WLAN of IEEE 802.11 b/g/n, 5.15 GHz WLAN of IEEE 802.11 a/n, WiMAX (2.5 - 2.69 GHz, 3.4 - 3.69 GHz, and 5.25 - 5.85 GHz), X-band for satellite communication (7.25 - 8.39 GHz) and point to point high speed wireless application (5.925 - 8.5 GHz) bands. Antenna is designed and fabricated on FR4 glass epoxy substrate to validate the simulated results with the measured results. Comparisons of both the results are found to be in agreement with each other. It also shows the good omnidirectional radiation pattern, appreciable gain, and acceptable radiation efficiency over the entire frequency range of 1 - 10 GHz.

Analysis and Comparison of Rectangular Microstrip Patch Antennas with Omni-Directional Slotted Patch Antenna for Wireless Applications

Volume 7 Issue 2 February - April 2018

Research Paper

Analysis and Comparison of Rectangular Microstrip Patch Antennas with Omni-Directional Slotted Patch Antenna for Wireless Applications

Narinder Sharma*, Snehdeep Singh**, Dr. Vipul Sharma***

* Professor and Head, Department of Electronics and Communication Engineering, Amritsar College of Engineering and Technology, Amritsar, India.

** PG Scholar, Department of Electronics and Communication Engineering, Amritsar College of Engineering and Technology, Amritsar, India.

*** Associate Professor, Electronics and Communication Engineering, Gurukula Kangri Vishwavidyalaya, Haridwar, India.

Sharma, N., Sandhu, S., and Sharma, V. (2018). Analysis And Comparison Of Rectangular Microstrip Patch Antennas With Omni-Directional Slotted Patch Antenna for Wireless Applications. i-manager’s Journal on Communication Engineering and Systems, 7(2), 42-47. https://doi.org/10.26634/jcs.7.2.14105

Abstract

This paper presents a comparison of rectangular microstrip patch antennas with omnidirectional antenna. It has been observed that different types of designing techniques are employed in existing antennas to achieve desired frequency band of operation. In this proposed work slotted patch with partial ground plane is designed to achieve wideband characteristics. Proposed antenna exhibits the bandwidth of 942MHz and 1194MHz at a frequency of 2.45GHz and 7.52GHz with a gain of 3.87dB and 4.67dB respectively. The higher value of bandwidth and gain makes the proposed antenna a good candidate among the existing antennas presented in this paper. Antennas are analyzed and observed using HFSS V13 software and designed on FR4 glass epoxy substrate with dielectric constant of 4.4 and a thickness of 1.6mm.

Performance Evaluation of DSR, AODV, OLSR, and ZRP Protocols in Zigbee

Volume 7 Issue 2 February - April 2018

Research Paper

Performance Evaluation of DSR, AODV, OLSR, and ZRP Protocols in Zigbee

Gurpreet Singh*, Mandeep Kaur**, Kuldeep Kaur***

*-*** Assistant Professor, Department of Computer Science and Engineering, Guru Nanak Dev University, Regional Campus, Sultanpur Lodhi, Kapurthala, India.

Singh, G., Kaur, M., and Kaur, K. (2018). Performance Evaluation of DSR, AODV, OLSR AND ZRP Protocols in ZIGBEE. i-manager’s Journal on Communication Engineering and Systems, 7(2), 37-41. https://doi.org/10.26634/jcs.7.2.14443

Abstract

ZigBee is an IEEE 802.15.4-based specification for a suite of high-level protocols applied to create personal area networks with little, low-power radios, for instance for house automation, medical product knowledge variety and different low-power, low-bandwidth wants for little range jobs which require instant connection.The main focus of this paper is on measuring the performance of ZigBee network. For this purpose, various protocols such as DSR, AODV, OLSR and ZRP have been used along with Netsim Simulator. Theperformanceis analyzed by taking various parameters such as Throughput (Mbps), Delay (Microseconds), Packet Transmitted with the help of routing protocols have been proposed like DSR, OLSR, AODV, ZRP toimprove the routing protocol performance and reliability.

Analysing work tour motifs from GPS Trajectory Data

Volume 7 Issue 2 February - April 2018

Research Paper

Analysing work tour motifs from GPS Trajectory Data

Jenniffer Joy J*, Dr. Vijaya Samundeeswari**

* Student, Department of Computer Science and Technology, Women's Christian College, Chennai, Tamil Nadu, India.

** Assistant Professor, Department of Computer Science and Technology, Women's Christian College, Chennai, Tamil Nadu, India.

Joy, J. J., and Samundeeswari, V. (2018). Analysing Work Tour Motifs from GPS Trajectory Data. i-manager’s Journal on Communication Engineering and Systems, 7(2), 31-36. https://doi.org/10.26634/jcs.7.2.14442

Abstract

With the objective of gettinga deep insight about the trajectory path and various utilization of GPS trajectory data, a literature review is done on the motifs that can be possibly obtained from the trajectory path. This paper defines one of such ways to model a work tour motif based on the mobility pattern of user’s daily trip from the GPS trajectory path. The segmented trajectory helps in modelling the motif by considering the stay points as motif nodes. By forming such motifs and considering it as a real-world object, various other applications of these data can be coined, which brings out the data from its confinement into a highly influential real-world object. This data analytics can be used to make tracking much easier in traffic synchronizations, forensic case investigations and in various other fields, with the objective of bringing ease of life in each person’s travel routines and reduce the rate of crimes scene happening at thickly populated area.

Achievable uplink capacity with linear detectors and Trade-off Between Spectral Efficiency and Energy Efficiency for Massive MIMO system

Volume 7 Issue 2 February - April 2018

Research Paper

Achievable uplink capacity with linear detectors and Trade-off Between Spectral Efficiency and Energy Efficiency for Massive MIMO system

Maharshi K. Bhatt*, Bhavin S. Sedani**, K. R. Parmar***

* PG Scholar, Department of Electronics and Communication Engineering, LD College of Engineering, Ahmedabad, India

**-*** Professor, Department of Electronics and Communication Engineering, LD College of Engineering, Ahmedabad, India.

Bhatt, M. K., Sedani, B. S., and Parmar, K. R. (2018). Achievable Uplink Capacity with Linear Detectors and Trade Off Between Spectral Efficiency and Energy Efficiency for Massive Mimo System. i-manager’s Journal on Communication Engineering and Systems, 7(2), 26-30. https://doi.org/10.26634/jcs.7.2.14440

Abstract

This paper performs analysis of massive MIMO system having large number of base station antennas N and user terminals K with uplink and downlink of Time Divison Duplexing system. In this system model pathloss, pilot contamination and antenna correlation for each link is considered. In this work, estimation of achievable rates with several linear detectors like MF (Matched filter) and MMSE (Minimum Mean Square Error) are done. We simulated achievable rate versus number of base station antenna N for MF and MMSE. We observed that performance of MMSE detector is superior in terms of achievable rate compared to MF detector in massive MIMO system. Second, we analyze spectral efficiency and energy efficiency of massive MIMO system with imperfect CSI (Channel State Information measured from uplink pilots). In this analysis we have used MRC (Maximum Ratio Combining) detector and derived spectral efficiency and energy efficiency for different values of transmitted power. From simulation we can observe that as we increase transmitted power, spectral efficiency increased but at the cost of energy efficiency. So there is always trade off between spectral efficiency and energy efficiency. We also observed from simulation that as we increase number of base station antenna trade off curve shifts upwards.