The Impact of Combined Physical Layer Cooperation and Scheduling for the Downlink of LTE-Advanced Networks

2013 ◽  
Author(s):  
Michael Kuhn ◽  
Tatiana Sarmiento ◽  
Marc Kuhn ◽  
Raphael Rolny
Keyword(s):  
Physical Layer ◽  
Lte Advanced ◽  
The Impact

Network Throughput and Outage Analysis in a Poisson and Matérn Cluster based LTE-Advanced Small Cell Networks

2021 ◽  
Author(s):  
Joydev Ghosh
Keyword(s):  
Outage Probability ◽  
Cell Formation ◽  
Access Network ◽  
Small Cell ◽  
Network Throughput ◽  
Base Stations ◽  
Small Cells ◽  
Network Cell ◽  
Lte Advanced ◽  
The Impact

<div>In LTE-A (LTE-Advanced), the access network cell formation is an integrated form of outdoor unit and indoor unit. With the indoor unit extension the access network becomes heterogeneous (HetNet). HetNet is a straightforward way to provide quality of service (QoS) in terms better network coverage and high data rate. Although, due to uncoordinated, densely deployed small cells large interference may occur, particularly in case of operating small cells within the spectrum of macro base stations (MBS). This paper probes the impact of small cell on the outage probability and the average network throughput enhancement. The positions of the small cells are retained random and modelled with homogeneous Poisson Point Process (PPP) and Matérn Cluster process (MCP). The paper provides an analytic form which permits to compute the outage probability, including the mostly applied fast fading channel types. Furthermore, simulations are evaluated in order to calculate the average network throughput for both random processes. Simulation results highlights that the network throughput remarkably grows due to small cell deployment.</div>

scholarly journals Simulation of LTE -Advanced Downlink Physical Layer Transceiver

2021 ◽  
Vol 7 (37) ◽  
pp. 12-22
Author(s):  
Sara M. Hassan ◽  
Gihan G. Hamza ◽  
Abdelhaliem Zekry
Keyword(s):  
Physical Layer ◽  
Lte Advanced

scholarly journals Experimental Interference Robustness Evaluation of IEEE 802.15.4-2015 OQPSK-DSSS and SUN-OFDM Physical Layers for Industrial Communications

Electronics ◽  
2019 ◽  
Vol 8 (9) ◽  
pp. 1045 ◽  
Author(s):  
Pere Tuset-Peiró ◽  
Francisco Vázquez-Gallego ◽  
Jonathan Muñoz ◽  
Thomas Watteyne ◽  
Jesus Alonso-Zarate ◽  
...  
Keyword(s):  
Orthogonal Frequency Division Multiplexing ◽  
Ieee 802.15.4 ◽  
Physical Layer ◽  
Direct Sequence Spread Spectrum ◽  
Spectrum Efficiency ◽  
Delivery Ratio ◽  
The Sun ◽  
Physical Layers ◽  
The Impact ◽  
Industrial Communications

In this paper, we experimentally evaluate and compare the robustness against interference of the OQPSK-DSSS (Offset Quadrature Phase Shift Keying-Direct Sequence Spread Spectrum) and the SUN-OFDM (Smart Utility Network-Orthogonal Frequency Division Multiplexing) physical layers, as defined in the IEEE 802.15.4-2015 standard. The objective of this study is to provide a comprehensive analysis of the impact that different levels of interference produce on these modulations, in terms of the resulting PDR (Packet Delivery Ratio) and depending on the length of the packet being transmitted. The results show that the SUN-OFDM physical layer provides significant benefits compared to the ubiquitous OQPSK-DSSS in terms of interference robustness, regardless of the interference type and the packet length. Overall, this demonstrates the suitability of choosing the SUN-OFDM physical layer when deploying low-power wireless networks in industrial scenarios, especially taking into consideration the possibility of trading-off robustness and spectrum efficiency depending on the application requirements.

scholarly journals Physical Layer Performance Evaluation of LTE-Advanced Pro Broadcast and ATSC 3.0 Systems

2019 ◽  
Vol 65 (3) ◽  
pp. 477-488 ◽  
Author(s):  
Manuel Fuentes ◽  
De Mi ◽  
Hongzhi Chen ◽  
Eduardo Garro ◽  
Jose Luis Carcel ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Physical Layer ◽  
Lte Advanced

scholarly journals A Study of Physical Layer Security in SWIPT-Based Decode-and-Forward Relay Networks with Dynamic Power Splitting

Sensors ◽  
2021 ◽  
Vol 21 (17) ◽  
pp. 5692
Author(s):  
Van-Duc Phan ◽  
Tan N. Nguyen ◽  
Anh Vu Le ◽  
Miroslav Voznak
Keyword(s):  
Outage Probability ◽  
Physical Layer Security ◽  
Physical Layer ◽  
Secrecy Outage Probability ◽  
Power Splitting ◽  
Decode And Forward ◽  
Dynamic Power ◽  
Secrecy Outage ◽  
Multiple Relay ◽  
The Impact

In this paper, we study the physical layer security for simultaneous wireless information and power transfer (SWIPT)-based half-duplex (HD) decode-and-forward relaying system. We consider a system model including one transmitter that tries to transmit information to one receiver under the help of multiple relay users and in the presence of one eavesdropper that attempts to overhear the confidential information. More specifically, to investigate the secrecy performance, we derive closed-form expressions of outage probability (OP) and secrecy outage probability for dynamic power splitting-based relaying (DPSBR) and static power splitting-based relaying (SPSBR) schemes. Moreover, the lower bound of secrecy outage probability is obtained when the source’s transmit power goes to infinity. The Monte Carlo simulations are given to corroborate the correctness of our mathematical analysis. It is observed from simulation results that the proposed DPSBR scheme outperforms the SPSBR-based schemes in terms of OP and SOP under the impact of different parameters on system performance.

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