%0 Journal Article
	%A Bahram Khan and  Anderson Rocha Ramos and  Rui R. Paulo and  Fernando J. Velez
	%D 2021
	%J International Journal of Electronics and Communication Engineering
	%B World Academy of Science, Engineering and Technology
	%I Open Science Index 170, 2021
	%T Deployment of Beyond 4G Wireless Communication Networks with Carrier Aggregation
	%U https://publications.waset.org/pdf/10011879
	%V 170
	%X With the growing demand for a new blend of
applications, the users dependency on the internet is increasing day
by day. Mobile internet users are giving more attention to their own
experiences, especially in terms of communication reliability, high
data rates and service stability on move. This increase in the demand
is causing saturation of existing radio frequency bands. To address
these challenges, researchers are investigating the best approaches,
Carrier Aggregation (CA) is one of the newest innovations, which
seems to fulfill the demands of the future spectrum, also CA
is one the most important feature for Long Term Evolution -
Advanced (LTE-Advanced). For this purpose to get the upcoming
International Mobile Telecommunication Advanced (IMT-Advanced)
mobile requirements (1 Gb/s peak data rate), the CA scheme is
presented by 3GPP, which would sustain a high data rate using
widespread frequency bandwidth up to 100 MHz. Technical issues
such as aggregation structure, its implementations, deployment
scenarios, control signal techniques, and challenges for CA technique
in LTE-Advanced, with consideration of backward compatibility,
are highlighted in this paper. Also, performance evaluation in
macro-cellular scenarios through a simulation approach is presented,
which shows the benefits of applying CA, low-complexity multi-band
schedulers in service quality, system capacity enhancement and
concluded that enhanced multi-band scheduler is less complex than
the general multi-band scheduler, which performs better for a cell
radius longer than 1800 m (and a PLR threshold of 2%).
	%P 83 - 93