Abstract:
With increasing demand of high data rate wireless access for multimedia services,
the Third Generation Partnership Project (3GPP) Long Term Evolution (LTE) has
been proposed to develop new technology components that can meet the
requirements of IMT-Advanced systems. IMT-A will offer a high bandwidth up to
100MHz for higher data rates, global operation and economy of scale supporting a
wider range of services. Many candidate radio interface technologies have been
submitted to the International Telecommunications Union (ITU) to prepare new
technology components for LTE to meet IMT-A requirements. Among which,
device-to-device (D2D) communication has received increasing attentions as a
promising component to improve spectral efficiency.
Unlike the infrastructure based cellular network, D2D users (user equipments or
mobile terminals) do not communicate via the central coordinator (base station or
evolved NodeB) but operate as an underlay and communicate directly with each
other. D2D communication shares the same resources with the cellular system
whereas under the control of the evolved NodeB (eNB) of the cellular network.
D2D communication is a promising concept which can provide several advantages
such as low cost, flexibility etc. Its usage of bandwidth and battery power is more
efficient. Indeed, such D2D communication is likely to become integral to the
future beyond 3G world to form a hybrid network.
This Thesis work is focused on cell edge D2D users. Normally Cell edge
users suffer from high interference from the other cells. Power Control is also a
problem for cell edge users as cell edge users need higher power but eNB can’t
provide excessively high power because it might interfere others in the cell .As a
result performance degradation occurs in case of cell edge users. For this reason,
we gave an idea where cell edge users will be entertained with same SNR and
same data rate like the other users in the cell. We proposed an idea where the cell
edge users of interconnected eNBs will be allocated same resource blocks which
will not be given to the cellular users. In this work, we showed the differences of
data rate, Shannon capacity, transmit power between cellular and D2D users in the
cell edge. In all the cases, our proposed idea showed better performance through
simulation using MATLAB.
Description:
Supervised by
Md. Tawhid Kawser,
Department of Electrical and Electronic Engineering.
Islamic University of Technology (IUT)
A Subsidiary Organ of OIC.
Dhaka, Bangladesh.
