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Resource Allocation in 5G/IoT Networks / Umar Ghafoor

By: Ghafoor, Umar Contributor(s): Supervised by Dr. Adil Masood Siddiqui Material type: Text

TextPublisher: Rawalpindi, MCS (NUST), 2023Description: ix, 163 pSubject(s): PhD Electrical Engineering Thesis | PhD EE ThesisDDC classification: 621.382,GAH

Contents:

Optimal utilization of resources like base station (BS) selection, user clustering (UC), user association, power, and spectrum allocation are ambitious targets of future 5th generation (5G) networks. 5G network will require immense capacity due to rise in the number of multimedia applications and mobile devices. In this regard, heterogeneous networks (HetNets), when compared to the existing traditional single-tier homogeneous networks, can increase the network throughput to satisfy the drastic increase in capacity demands. Homogeneous networks include only a macro base station (MBS), where HetNets include MBS and several small base stations (SBSs) which result in high throughput and energy efficiency (EE) of the network. Another important aspect of 5G is user access network, which is based on multiple access (MA) schemes. In the previous generations, orthogonal multiple access (OMA) scheme was used in which only one subcarrier (SC) was allocated to a user in the near vicinity and remote location. A user was associated with a remote MBS due to high transmit power compared to the nearby SBS with low transmit power in 4th generation (4G) HetNet. This scheme is not able to fulfill vast growing demands of users for multimedia applications, entertainment purposes, and internet usage in 5G. Hence, to meet the demands of future 5G, a novel nonorthogonal multiple access (NOMA) scheme, in which more than one user can be allocated to a single SC can be explored. This scheme will introduce interference among users on a single SC that can be mitigated using successive interference cancellation (SIC). Also, UC can be explored to further mitigate inter-cluster interference. UC can be defined as the group of users assigned an orthogonal SC. Moreover, hybrid nonorthogonal multiple access (HNOMA) scheme will ensure sub-optimal and economical utilization of resources, i.e., infrastructure, power, and frequency in future 5G HetNets. H-NOMA is a combination of OMA and NOMA. H-NOMA can meet the increasing demands of multimedia applications and mobile devices in 5G HetNet.

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Item type	Current location	Home library	Shelving location	Call number	Status	Notes	Date due	Barcode	Item holds
Thesis	Military College of Signals (MCS)	Military College of Signals (MCS)	Thesis	621.382,GAH (Browse shelf)	Available	Almirah No.68, Shelf No.6		MCSPhD EE-24

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Previous	621.382,CHA Design of Appropriate Wavelet Bases for Texture Discrimination /	621.382,CHA Development of Robust and Efficient Image Enhancement Techniques /	621.382,FAR Neurasense /	621.382,GAH Resource Allocation in 5G/IoT Networks /	621.382,GUL Brain - Bolt (EEG Based Mind Aid) /	621.382,HAS Design and Development of MIMO Reconfigurable Antenna System Based on MEMS Technology /	621.382,HUS Advance Food Grading System (AFG) /	Next

Optimal utilization of resources like base station (BS) selection, user clustering (UC),
user association, power, and spectrum allocation are ambitious targets of future 5th
generation (5G) networks. 5G network will require immense capacity due to rise in
the number of multimedia applications and mobile devices. In this regard, heterogeneous
networks (HetNets), when compared to the existing traditional single-tier homogeneous
networks, can increase the network throughput to satisfy the drastic increase in
capacity demands. Homogeneous networks include only a macro base station (MBS),
where HetNets include MBS and several small base stations (SBSs) which result in high
throughput and energy efficiency (EE) of the network. Another important aspect of 5G
is user access network, which is based on multiple access (MA) schemes. In the previous
generations, orthogonal multiple access (OMA) scheme was used in which only
one subcarrier (SC) was allocated to a user in the near vicinity and remote location. A
user was associated with a remote MBS due to high transmit power compared to the
nearby SBS with low transmit power in 4th generation (4G) HetNet. This scheme is not
able to fulfill vast growing demands of users for multimedia applications, entertainment
purposes, and internet usage in 5G.
Hence, to meet the demands of future 5G, a novel nonorthogonal multiple access
(NOMA) scheme, in which more than one user can be allocated to a single SC can
be explored. This scheme will introduce interference among users on a single SC that
can be mitigated using successive interference cancellation (SIC). Also, UC can be explored
to further mitigate inter-cluster interference. UC can be defined as the group of
users assigned an orthogonal SC. Moreover, hybrid nonorthogonal multiple access (HNOMA)
scheme will ensure sub-optimal and economical utilization of resources, i.e.,
infrastructure, power, and frequency in future 5G HetNets. H-NOMA is a combination
of OMA and NOMA. H-NOMA can meet the increasing demands of multimedia
applications and mobile devices in 5G HetNet.

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