1. SYSTEMATIC LOOK AT CODE PERFORMANCE AND
SYSTEM SIMULATION
The most standard method in improvising a system‟s efficiency in Digital communication
is channel coding but this methods is not been able to extend its features for high speed
links.. Increasing demands in network speeds are placing a large burden on the energy
efficiency of high-speed links and render the benefit of channel coding for these systems
a timely subject. The low error rates of interest and the presence of residual inter-symbol
interference (ISI) caused by hardware constraints impede the analysis and simulation of
coded high-speed links. Focusing on the residual ISI and combined noise as the dominant
error mechanisms, this paper analyzes error correlation through concepts of error region,
channel signature, and correlation distance. This framework provides a deeper insight
into joint error behaviors in high-speed links, extends the range of statistical simulation
for coded high-speed links, and provides a case against the use of biased Monte Carlo
methods in this setting. Finally, based on a hardware test bed, the performance of
standard binary forward error correction and error detection schemes is evaluated, from
which recommendations on coding for high-speed links are derived.
2. Hospital Automation System RFID-Based: Technology
Embedded In Smart Devices (Cards, Tags and Bracelets)
Radio Frequency Identification (RFID) is one of the automatic identification
technologies more in vogue nowadays. There is a wide research and development in this
area trying to take maximum advantage of this technology, and in coming years many
new applications and research areas will continue to appear. This sudden interest in RFID
also brings about some concerns, mainly the security and privacy of those who work with
or use tags in their everyday life. As the process of industrial and commercial automation,
hospitals are also being included in the context of automation. Thus, Solutions that can
automate hospital processes were searched, in order to make them more secure and with a
lower operational cost.
Existing System:
Currently in hospitals there is no efficient technique to maintain the clinical
samples of the patients. Just paper details are used to verify the clinical samples detail,
which is proving to be fatal in some cases due to wrong treatment. That is why we are
going to automate the data to be acquitted from the clinical laboratories.
Proposed System:
In this proposed system we are going to use RFID tags for every collected sample. The
doctor who wants to see the patient details can just see it in a PC for which the data is fed
from the PC. Before collecting the sample the patient‟s details must be fed in to the
database through administrator. After that a separate RFID tag must be given to the
devices in which the samples are to be collected. In the front end when the doctor shows
the tag to the reader the signal is passed to the controller which transmits the signal
through UART to PC. From PC we can view the corresponding details of the patient.
3. Automatic control of students’ attendance in
classrooms using RFID
Radio Frequency Identification (RFID) is one of the automatic identification
technologies more in vogue nowadays. There is a wide research and development in this
area trying to take maximum advantage of this technology, and in coming years many
new applications and research areas will continue to appear RFID has, for some time,
been used to access control in many different areas, from asset tracking to limiting access
to restricted areas. RFID has, for some time, been used to access control in many
different areas, from asset tracking to limiting access to restricted areas.
Existing system:
At present the attendance system has become a tedious process. It is the duty of
the staff to check the students for each and every hour, which is going to be difficult and
also time consuming. So we, by implementing the technology of RFID which can be
given to the students along with their ID card would be easier.
Proposed system:
In this project we propose architecture and a prototype of a system that uses distributed
RFID over Ethernet and we demonstrate how to automate an entire students‟ attendance
registration system by using RFID in an educational institution environment. Although
the use of RFID systems in educational institutions is not new, it is intended to show how
the use of it came to solve daily problems in our university. Here we are just going to use
a RFID tag and a reader to identify the same. We interface the reader to a microcontroller
which in turn is connected to a PC. The data from the controller is passed to the PC via
UART. The data can be viewed in several systems via Ethernet.
4. ZigBee Device Access Control and Reliable Data
Transmission
In ZigBee Based Health Monitoring System
One user's health monitoring system has a few ZigBee devices to measure one
user's physiological data. Even if there are a lot of ZigBee devices nearby, the
communication should be accepted between only one user's ZigBee devices. So, the
access control should be implemented because there can be a lot of ZigBee devices
nearby. The physiological data must not be lost but a wireless communication such as
zigbee can lose a data.
EXISTING SYSTEM
The physiological data must not be lost but a wireless communication such as
zigbee can lose a data.
PROPOSED SYSTEM
All the communication system has data loss while data transmission but this paper
proposes the reliable data transmission not to lose a physiological data in zigbee based
health monitoring system.
5. Zigbee Wireless Vehicular Identification and
Authentication System
Zigbee is a recently developed wireless technology used in many commercial and
research applications based on the IEEE 802.15.4 specification. It has become a very
attractive wireless connectivity solution due to its open standard, low cost and low power
characteristics. Zigbee is suitable for low data-rate and low power consumption
applications in comparison with other wireless technologies such as Bluetooth and WiFi.
Applications include home and building automation, industrial control, building
management systems, environmental monitoring and vehicle fleet management systems.
Existing System:
In the existing system the vehicular identifications are performed in the RF
Communication. The RF Communications are not providing the communication channel
as longer. So the system and unique ID cannot be followed
Proposed System:
We propose a Zigbee technology based wireless vehicle identification and driver
authentication system consisting of a central database of authorized vehicles The RF Tx
is placed in a vehicle that will be approaching the entrance of an establishment, the RF
Rx is used to communicate with the RF Tx. A vehicle identification device profile was
defined and developed using the Microchip Zigbee protocol stack. The vehicle detail is
given to the microcontroller through RF Rx which is transmitted through wireless Zigbee
model to remote PC. The data can be viewed only when he enters the correct password.
The Proposed System:
A micromouse integrates microprocessor with sensors and has the ability to go through
the maze automatically. Sensors are indispensable and essential in its control system. We
can find many sensors such as infrared photoelectric sensor, ultrasonic sensor, laser
sensors and so on applied. They all have non-contact measurement advantages. Because
of the fast response and low cost of infrared photoelectric sensor, infrared photoelectric
sensors play an important role in the system control for the micromouse. However, there
are many interferential factors when we use the infrared photoelectric sensor to control
the motion of micromouse, in which cases the measurement of infrared photoelectric
sensor cannot achieve the desired effect.
This paper proposes a new improved method, in order to improve the measurement
accuracy of the sensor effectively. In addition to the above measurement, what we only
need to do is to change the wheel and then better measurement accuracy will be obtained.
The solution is to use a “CODED WHEEL” to provide noise immunity by increasing the
S/N ratio and improved signal performance.
The signal received from IR sensor before using a coded wheel is given below. The
voltage at point “A” is supposed to be higher than „zero‟, but due to noise it has
ascended. The vice versa situation exists for point “B”.