Planar inverted F-antenna are playing an important role in wireless communication systems
because of their many advantages like light weight, low profile, low cost, easy integration with
planar structure and easy ...
It is known that the telecom industry is one of the core areas in a country's sustainability and
growth. So it is important that great emphasis be given to it on deploying necessary
infrastructures in different areas, ...
Audio quality assessment is one of the key considerations in television and radio broadcasting
systems. Up until now, in many Ethiopian broadcasting service providers, the
only way to measure the audio quality of an end ...
The use of biometric recognition is increasing nowadays because the characteristics of biometrics are unique and immutable. Traditional identification methods like tokens and access cards are less reliable than the biometric ...
Terrestrial broadcasting channel is unknown and prone to time dispersion, which causes
inter symbol interference (ISI) and fading. This unknown channel must be estimated based
on analysis of received signal and training ...
During symbol transmission we may use single carrier or multi-carrier modulation. In case of
single carrier transmission all users share the same transmission medium and this causes the
problem of Inter Symbol Interference ...
Adaptive equalization is a process of compensating the disruptive effects caused by inter symbol interference (ISI) in a band limited channel and plays a vital role for enabling higher data rate transmissions in digital ...
Next generation networks are expected to support large volume of data tra c generated
from emerging applications such as ultra high speed video streaming, machine-tomachine
(M2M) communication and the Internet of things ...
In this thesis coverage and capacity comparisons of WLAN 60 GHz frequency in LOS and NLOS scenarios are done with its counterpart 2.4 and 5 GHz frequencies. In addition, in capacity comparison different number of MIMO ...
Wireless channels exhibit multipath and time dispersion that lead to attenuation
and inter-symbol interference (ISI). In order to compensate the effect of ISI caused by
channels, equalization techniques are introduced ...
The demand for CDMA –WLL, Wireless Local Loop, Communication system is
higher than wired network. The CDMA–WLL system in Addis Ababa is providing
voice and data communication services. Because of its fast and reliable ...
The need for an internet connection is growing globally. So, day-by-day people need
much higher data rate connection to meet their need but every physical resource in communication
like frequency band, transmit signal ...
Due to that wireless technology improvement is ongoing, the numbers of users
and applications increase rapidly. Then wireless communications need the high
data rate and link reliability at the same time. Future generation ...
Nowadays with the limited spectrum bands the mobile operators have been challenged
to deliver multimedia applications with higher data rates, low latency and better quality
of service of mobile communications to a growing ...
In a wireless network, users can relay information to exploit cooperative diversity, thereby
increasing reliability. The uses of multiple transmit and receive antennas (MIMO) can help
to exploit transmit and receive ...
Due to the increase of the number of users and applications, the improvement of technology is also ongoing. Wireless mobile communications need high data rate and capacity at the same time. Future generation wireless ...
Merits of planar antennas make them a potential candidate for the field of communication in
Microwave application. This thesis presents performance comparison of Coplanar /Micro strip
patch Antenna for microwave X-band, ...
In recent years, the devices in communication systems require the development of low cost,
minimal weight, compact and low profile antennas that are capable of maintaining high performance
over a wide spectrum of frequencies. ...
Nowadays, there has been an increase in wireless technologies, which are used for variety of
applications and services. The need of using wireless services and applications also increased from
day to day that brings a ...
MIMO systems are an appealing candidate for emerging fourth-generation wireless networks due
to their potential to exploit space diversity for increasing conveyed throughput without wasting
bandwidth and power resources. ...