Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 16 of 16 for “"Non-orthogonal multiple access"”.
-
Non-orthogonal multiple access using guessing random additive noise decoding aided macrosymbols
… noise decoding-aided macrosymbols (GRANDAM) as a nonorthogonal multiple access (NOMA) method that can detect, error correct, and decode multiple users in multiple input multiple output (MIMO) systems that involve imperfect channel estimation, symbol-wise asynchronous transmission, and …
-
Polarization Reconfigurable Non-Orthogonal Multiple Access (PR-NOMA) for Next Generation Communication Systems
<p>The non-orthogonal multiple access (NOMA) method for wireless communication systems has seen ever-increasing implementations for the existing wireless communication system design due to its superiority when compared to its counterpart, the traditional orthogonal multiple access (OMA). However, a …
-
Communication Efficiency: Superposition Strategies and Early Decoding
… and applications. First, the performance of non-orthogonal multiple access through superposition coding is characterized under short-latency constraints. Although superposition coding is capacity-achieving for broadcast channels, practical implementations have not delivered the gains …
-
Low altitude unmanned aerial vehicles (UAVs) in wireless networks
… we introduce power-domain aerial-terrestrial non-orthogonal multiple access (NOMA), allowing simultaneous uplink transmission of both the AUE and a terrestrial user equipment (TUE) while considering the AUE's known trajectory. To evaluate system performance, we establish an analytical …
-
Low altitude unmanned aerial vehicles (UAVs) in wireless networks
… we introduce power-domain aerial-terrestrial non-orthogonal multiple access (NOMA), allowing simultaneous uplink transmission of both the AUE and a terrestrial user equipment (TUE) while considering the AUE's known trajectory. To evaluate system performance, we establish an analytical …
-
Power efficient designs for 5G wireless networks
… Filter-and-Forward (FF) network, and a massive Multiple Input Multiple Output (MIMO) network using the Non-Orthogonal Multiple Access (NOMA) scheme. In the first network, two transceivers using the Orthogonal Frequency Division Multiplexing (OFDM) scheme communicate through multiple relays in an …
-
Statistical delay QoS driven resource allocation and performance analysis for wireless communication networks
… power limit, in a multi-user multi-carrier orthogonal frequency-division multiple access (OFDMA) system, is proposed and analyzed. Formulated as a combinatorial integer programming problem, the problem is decoupled into a frequency provisioning problem and an independent per-user …
-
Characterisation and performance analysis of random linear network coding for reliable and secure communication
… or layers of a service, when RLNC based on non-overlapping, expanding or sliding generations is employed. Moreover, the design parameters of these schemes allow to adjust the desired decoding performance. Next, we evaluate the performance of Random Linear Network Coded Cooperation (RLNCC) in …
-
QoE Driven Multimedia Service Schemes in Wireless Networks Resource Allocation: Evolution from Optimization, Game Theory, to Economics
… multimedia service system. In this part, the Multiple Input Multiple Output (MIMO) technology will be implemented in the D2D communication. Furthermore, factors such as the multimedia content distribution (i.e., Quad-tree fractal image compression method), the power allocation strategy, and …
-
System Design and Performance Study for Wireless Information and Energy Transfer in the Internet of Things
… WIET systems with bidirectional communication. Multiple-input multiple-output (MIMO) with antenna switching (AS) and beamforming are investigated to improve the achieved downlink-uplink rate region in such systems. An optimal and a low-complexity algorithm are proposed to solve the problem of …
-
NOMA Integrated with Enabling Technologies and Practical Challenges
Non-orthogonal multiple access (NOMA) schemes allow multiple users to share the same resource and separate the users in either the power-domain (PD -NOMA) or in the code domain (CD-NOMA). To make NOMA a reality in networks, several important practical challenges need to be considered. This thesis …
-
Wireless Information and Power Transfer in Communication Networks: Performance Analysis and Optimal Resource Allocation
… networks under various operation protocols and multiple access schemes. Furthermore, since the radio frequency signal has energy, in addition to conveying information, it is also possible to power energy harvesting component while establishing data connectivity with information-decoding …
-
Multiuser Diversity Management for Multicast/Broadcast Services in 5G and Beyond Networks
… requires a compelling mix of enabling radio access technologies (RAT) and native softwarized, disaggregated, and intelligent radio access network (RAN) conceptions. In such a context, the multicast/broadcast ser vice (MBS) capability is an appealing feature to address the ever-growing traffic …
-
Inter-cell interference coordination in 5G ultra-dense networks
… state information (CSI) measurements. Due to non-convex nature of the problem, the optimization is transformed into sub-optimal convex equivalence, while a low complexity Algorithm that yields optimal resource allocation is then designed to solve it. Simulation results are used to show …
-
Distributed Wireless Resource Management in the Internet of Things
… Moreover, to capture heterogeneity in an IoT, non-linear AoI is introduced. To minimize AoI, centralized and distributed approaches for the resource allocation are proposed to enable the sharing of limited communication resources, while delivering messages to the destination in a timely manner. …
-
OTTIMIZZAZIONE DELL'INTERFACCIA 5G NR SULLA BASE DI TECNICHE INNOVATIVE
… difficile. Considerare l'uso di tecniche comuni non può consentire di soddisfare il compromesso fondamentale tra la velocità di trasmissione dei dati ottenibile, la latenza, l'affidabilità e l'efficienza spettrale. Pertanto, per affrontare in modo efficiente queste sfide, dovrebbero essere …