JCT - Volume 6 Issue 4 (April 2017)


Sr/No/ Title Pdf
1 Analysis for Multi user MIMO OFDM systems
Sapna Sambhaji Kamble, Kailash T.Jadhao

Abstract- In modern MIMO OFDM systems beamforming techniques have been widely adopted. The receive SNR of OFDM systems can be sufficiently improved by using beamforming techniques. But a major problem of OFDM systems is that the peak-to-average power ratio of signals degrades after using beamforming. High PAPR not only complicates the power amplifier design, but also increases power consumption. In this paper, theoretical analysis of PAPR performance of MIMO OFDM systems is done using either one of the two beamforming techniques, i.e. maximum ratio transmission and equal gain transmission. The output may provide important reference for practical designing of power amplifiers and power consumption. Moreover, the theoretical results show that PAPR of MRT OFDM systems is much worse than that of EGT OFDM systems. For both MRT OFDM and EGT OFDM systems PAPR reduction algorithms are proposed. The proposed algorithm for MRT OFDM systems can improve both PAPR and bit error rate; but the proposed algorithm for EGT OFDM systems only improves PAPR while it slightly degrades bit error rate.

2 Design of High Performance 12T SRAM Cell
R. Navajothi, A. Kaleel Rahuman

Abstract- Due to increasing in the need of electronic systems, the number of transistors getting increased in the modern integrated circuits. Most of the systems mainly consist of Static Random Access Memory (SRAM) to store the data and process. In which maximum of total active mode energy is consumed due to leakage current. SRAM array is main source of leakage current since majority of transistor are utilized for on-chip memory in high performance microprocessor and system on chip. Hence there is need to design of low leakage SRAM is required. The main objective is to design and implement 11T and 12T based SRAM cell with less leakage current. The concept of Virtual VDD is employed in 12T-SRAM cell to reduce the leakage. This helps to reduce the dynamic power utilization in the system. Power dissipation of 12T-SRAM cell is less when compared to the existing 11T-SRAM cell by using the 16nm Predictive Technology Model (PTM). The half-select issue is the major problem in SRAM design. The proposed method help the cell to free from the half-select issue. By using Virtual VDD architecture, helps to reduce the leakage current, improve the number of counts of transistor and stability of the system. The average read power consumption reduces approximately 12% compared to the 6T cell due to lower discharging activity at read bit line and low leakage current. But thus 11T structure is less performance compare with 12T SRAM cell.

3 Spy Robot app to Rescue people
V.Mahalakshmi, A.Hari Ram

Abstract- In this paper, a new approach for detecting alive humans in destructed environments using a autonomous robot is proposed. Alive human body detection system proposed a monitoring system using PIR Sensor. In order to detect a human body, an autonomous robot must be equipped with a specific set of sensors that provide information about the presence of a person in the environment around. This work describes an autonomous robot for rescue operations. A PIR or a Passive Infrared Sensor can be used to detect presence of human beings in its proximity. The proposed system uses an ultrasonic sensor in order to detect obstacles which help to operate the robot to turn. The detection depending on a number of factors such as the body position and the human heat. The whole system can be operated using an android app. The Bluetooth attached with the robot helps to interact with the mobile. This way, the real-time cost of processing and data transmission is considerably reduced. This system has the potential to achieve high performance in detecting alive humans in devastated environments relatively quickly and cost-effectively.

4 Embedded System Controlled Smart School Bus
A.Dhanalakshmi, A.Hari Ram

Abstract- The aim of the project is to automate the school bus to overcome child injury during step into bus and automatic emergency door opening in presence of fire. The PIR sensor placed in the step helps to predict the movement of student in the step. If any movement occurs, the sensor sends intimation therefore it won't allow the bus to move further. The fire sensor predicts the presence of fire, which triggers the emergency door to open automatically.

5 Firebase Implementation - “Swachh Saarthi”- An initiative for cleaner Mumbai
Ashwija Shetty, Gaurav Vaswani, Urmi Jadhav, Manisha Gahirwal

Abstract- In this paper, the authors design and present an application which is a proposed system, an initiative for the “Swachh Bharat Abhiyan” to help MCGM with their daily routine. Managing the complete waste management is always challenging and difficult for the various sectors of industry and society, with the growing technological advancements, there is a desperate need to enhance the existing system. The application is divided into two parts as web based application and an android application. This paper highlights the android based application designed for MCGM. The application uses firebase to implement the strategic notifications for the application. The application highlights on reducing communication time between garbage spots using the Dijikstra algorithm and Google’s Distance Matrix API. The Firebase is used to send notification to the nearest vehicle, using the FMC architecture in a scenario when the current route vehicle gets full before its finishing its complete route.

6 Automatic Time-Table –Implementation using Genetic Algorithm
Asif Ansari, Ajit Parab

Abstract- A college timetable is a temporal arrangement of a set of classes and classrooms in which all given constraints are satisfied. Timetabling has long been known to belong to the class of problems called NP hard. This project introduces a practical timetabling algorithm capable of taking care of both Hard and soft constraints effectively, used in an automated timetabling system. The Genetic Algorithm is main component of project which produces the XML based weekly timetable sheet as the output. The project takes various inputs from the user such as Teacher List, Course List, Semester List, Room List, Day List and Timeslot as well as various rules, facts and constraints using Genetic Algorithm, which are stored in XML based knowledge base. This knowledge base serves as input to our Timetable Generator Algorithm. Further benefits of choosing these frameworks are explained in later part of report with practically acceptable results.