First of all we would like to thank God Almighty for giving us the strength and confidence in
pursing the ambitions. We would like to thank our Examiner Professor Axel Jantsch for
allowing us to do this under his guidance and encouragement. At the same time we would like
to mention our sincere thanks to Mr. Said Zainali, Manager of FRAME ACCESS AB for
giving all the required Equipment and the technical support which helped us to finish this
thesis. We would like to mention our gratitude to our fellow VACS team members who helped
us a lot during difficult times.
A passive optical network (PON) is a point-to-multipoint, fiber to the premises network architecture in which unpowered optical splitters are used to enable a single optical fiber to serve multiple premises, typically 32-128. A PON consists of an Optical Line Termination (OLT) at the service provider s central office and a number of Optical Network Units (ONUs) near end users. A PON configuration reduces the amount of fiber and central office Equipment required compared with point to point architectures
This product has been manufactured to your company’s specifications a part for use in your
company’s general electronic products. It is guaranteed to perform according to delivery
specifications. For any other use apart from general electronic Equipment, we cannot take
responsibility if the product is used in medical devices, nuclear power control Equipment,
aerospace Equipment, fire and security systems, or any other applications in which there is a
direct risk to human life and where extremely high levels of reliability are required. If the
product is to be used in any of the above applications, we will need to enter into a separate
product liability agreement.
The second edition of WiMax Operator鈥檚 Manual includes most of the material from the first
edition, plus new discussions of
鈥?The ultra-high-speed mobile telephone standard, HSDPA
鈥?Ultrawideband (UWB)
鈥?Changes to DSL technologies
鈥?Mobile voice
鈥?Mobile entertainment
鈥?New backup systems
The new edition also reflects the changes that have occurred in the industry over the last year and half, including the emergence of restandards wireless broadband Equipment with fully developed mobile capabilities, ignificant alterations in the competitive landscape, and he opening of valuable new spectrum for roadband wireless operators.
R1EX24xxx series are two-wire serial interface EEPROM (Electrically Erasable and Programmable
ROM). They realize high speed, low power consumption and a high level of reliability by employing
advanced MNOS memory technology and CMOS process and low voltage circuitry technology. They
also have a 128-byte page programming function to make their write operation faster.
Note: Renesas Technology鈥檚 serial EEPROM are authorized for using consumer applications such as
cellular phone, camcorders, audio Equipment. Therefore, please contact Renesas Technology鈥檚
sales office before using industrial applications such as automotive systems, embedded controllers,
and meters
The software and hardware development fields evolved along separate paths through the end of the 20th century. We seem to have come full circle, however. The previously rigid hardware on which our programs run is softening in many ways. Embedded systems are largely responsible for this softening. These hidden computing systems drive the electronic products around us, including consumer products like digital cameras and personal digital assistants, office automation Equipment like copy machines and printers, medical devices like heart monitors and ventilators, and automotive electronics like cruise controls and antilock brakes.
Embedded systems force designers to work under incredibly tight time-tomarket, power consumption, size, performance, flexibility, and cost constraints.
Many technologies introduced over the past two decades have sought to help satisfy these constraints. To understand these technologies, it is important to first distinguish the underlying embedded systems elements.
Within this book the fundamental concepts associated with the topic of power electronic control are covered alongside the latest Equipment and devices, new application areas and associated computer-assisted methods.
*A practical guide to the control of reactive power systems
*Ideal for postgraduate and professional courses
*Covers the latest Equipment and computer-aided analysis
The AP2406 is a 1.5Mhz constant frequency, slope compensated current mode PWM step-down converter. The device integrates a main switch and a synchronous rectifier for high efficiency without an external Schottky diode. It is ideal for powering portable Equipment that runs from a single cell lithium-Ion (Li+) battery. The AP2406 can supply 600mA of load current from a 2.5V to 5.5V input voltage. The output voltage can be regulated as low as 0.6V. The AP2406 can also run at 100% duty cycle for low dropout operation, extending battery life in portable system. Idle mode operation at light loads provides very low output ripple voltage for noise sensitive applications.
The AP2406 is offered in a low profile (1mm) 5-pin, thin SOT package, and is available in an adjustable version and fixed output voltage of 1.2V, 1.5V and 1.8V
Device-to-device(D2D) communications are now considered as an integral part of future 5G networks
which will enable direct communication between user Equipment (UE) without unnecessary routing via
the network infrastructure. This architecture will result in higher throughputs than conventional cellular
networks, but with the increased potential for co-channel interference induced by randomly located
cellular and D2D UEs.
