scholarly journals Designing on Optical Wireless Communication for 5G Mobile Applications

2021 ◽  
Vol 12 (3) ◽  
pp. 1472-1482
Author(s):  
T.Padmapriya Et.al
Keyword(s):  
Optical Network ◽  
Clustering Algorithms ◽  
Optical Power ◽  
Mobile Network ◽  
Power Grids ◽  
Mobile Technologies ◽  
Optical Wireless ◽  
Operational Systems ◽  
Passive Networks ◽  
Optical Grid

The emphasis of this paper is on designing 5G networks infrastructure, offering a better wireless and optical network segment transport scheme with domains for applications for mobile phones. Identify the appropriate set of power grid wireless (optical/optical) technologies) and processing modules needed to facilitate 5G mobile services in an energy-efficient a two-stage optimization framework and the premium way is suspected. A multi-objective method in the first iteration is for optimization, where reflects on the element of the transport network strives to jointly reduce the expenditures on investment of the 5G mobile network. This is done to determine the minimum mobile technologies for wireless and optical power grids. The second stage focuses on the branch of the web server and aims to define effective modules of processing to which 5G operational systems need to be distributed. The performances of the proposal are investigated using separate clustering algorithms, reasonable traffic statistics choices such as mm-wave and optical passive networks (PONs) for optical grid transport, fixed, and elastic networks in Bristol, UK, via a city-wide topology. To give more advantages to 5G applications, our paper proposed a 5G communication using optical wireless technology.

scholarly journals Higher performance and lower complexity turbo decoding scheme for 4G-LTE using unpunctured turbo trellis-coded modulation

2020 ◽  
Vol 18 (1) ◽  
pp. 351
Author(s):  
Elarbi Abderraouf ◽  
Abdesselam Bassou ◽  
Mohamed Rida Lahcene Rida Lahcene
Keyword(s):  
Mobile Networks ◽  
Channel Coding ◽  
Iterative Decoding ◽  
High Efficiency ◽  
Turbo Code ◽  
Mobile Network ◽  
Coded Modulation ◽  
Mobile Technologies ◽  
Trellis Coded Modulation ◽  
Trellis Coded

<p>Thanks to the success of smart phones and mobile-ready laptops, data traffic has recently grown exponentially, and the demand for mobile data has risen very dramatically. These requests in large capacity can only be satisfied by a high efficiency and a very good optimization of the infrastructures of the mobile networks, while taking into account the constraints which are the power, bandwidth and a limited complexity. The task of developing mobile technologies has also evolved from a national or regional focus to a complex and growing mission, supported by global standards development organizations such as 3GPP (3rd Group Partnership Project). Through this research, we present everything related to the simulation of the 4G mobile network system (LTE), which can provide high data flow with good quality, through three model channels known as (EPA, EVA, ETU). In this work we focus on the block ‘iterative decoding channel encoder’ in the LTE system, where the iterative channel coding called ‘Turbo-code’ (TC) is substituted by the iterative coding channel called ‘Unpunctured Turbo Trellis-coded Modulation’ (UTTCM). The simulation results showed that with less decoding complexities, UTTCM's LTE system gives good performance (in terms of BER).</p>

Digital Rights Management for Mobile Multimedia

2003 ◽  
pp. 97-111
Author(s):  
Sai Ho Kwok
Keyword(s):  
Mobile Device ◽  
General Framework ◽  
Digital Rights Management ◽  
Mobile Network ◽  
Intellectual Property Protection ◽  
Mobile Technologies ◽  
Mobile Multimedia ◽  
Limited Bandwidth ◽  
Digital Rights ◽  
Rights Management

In the future, intellectual property protection will be a need for distributed media in mobile multimedia. With the constraints of mobile commerce and mobile technologies such as limited bandwidth and computing capability, new schemes of rights management emerge. Digital rights management (DRM) operations in these schemes differ from those in existing DRM solutions for electronic commerce. This chapter presents a general DRM framework for mobile multimedia based on current DRM, mobile network, mobile device, and payment technologies. The framework is partially referenced to the NTT DoCoMo i-mode model, which centralizes payment and maintains user information within the service center. This chapter also presents the basic operations of the general framework and illustrates how rights insertion, rights enforcement, and music sharing are realized under the framework.

QoS Performance of Integrated Hybrid Optical Network in Mobile Fronthual Networks

2017 ◽  
Vol 7 (1) ◽  
pp. 189 ◽  
Author(s):  
Dawit Hadush Hailu
Keyword(s):  
Optical Network ◽  
Access Network ◽  
Mobile Network ◽  
Separation Distance ◽  
Link Length ◽  
Cloud Radio Access Network ◽  
Radio Access ◽  
Ethernet Network ◽  
Qos Performance ◽  
Guaranteed Service

<p>Cloud Radio Access Network (C-RAN) has emerged as a promising solution to meet the ever-growing capacity demand and reduce the cost of mobile network components. In such network, the mobile operator’s Remote Radio Head (RRH) and Base Band Unit (BBU) are often separated and the connection between them has very tight timing and latency requirements. To employ packet-based network for C-RAN fronthaul, the carried fronthaul traffic are needed to achieve the requirements of fronthaul streams. For this reason, the aim of this paper is focused on investigating and evaluating the feasibility of Integrated Hybrid Optical Network (IHON) networks for mobile fronthaul. TransPacket AS (www.transpacket.com) develops a fusion switching that efficiently serves both Guaranteed Service Transport (GST) traffic with absolute priority and packet switched Statistical Multiplexing (SM) best effort traffic. We verified how the leftover capacity of fusion node can be used to carry the low priority packets and how the GST traffic can have deterministic characteristics on a single wavelength by delaying it with Fixed Delay Line (FDL). For example, for L<sub>1GE </sub><sup>SM</sup> =0.3 the added SM traffic increases the 10GE wavelength utilization up to 89% without any losses and with SM PLR=1E<sup>-03</sup> up to 92% utilization. The simulated results and numerical analysis confirm that the PDV and PLR of GST traffic in Ethernet network meet the requirements of mobile fronthaul using CPRI. For Ethernet network, the number of nodes in the network limits the maximum separation distance between BBU and RRH (link length); for increasing the number of nodes, the link length decreases. Consequently, Radio over Ethernet (RoE) traffic should receive the priority and Quality of Service (QoS) HP can provide. On the other hand, Low Priority (LP) classes are not sensitive to QoS metrics and should be used for transporting time insensitive applications and services.</p>

scholarly journals Monolitic Hybrid Transmitter-Receiver Lens for Rotary On-Axis Communications

2020 ◽  
Vol 10 (4) ◽  
pp. 1540 ◽  
Author(s):  
René Kirrbach ◽  
Michael Faulwaßer ◽  
Tobias Schneider ◽  
Philipp Meißner ◽  
Alexander Noack ◽  
...  
Keyword(s):  
High Speed ◽  
State Of The Art ◽  
Power Level ◽  
Optical Power ◽  
Full Duplex ◽  
Optical Wireless ◽  
High Complexity ◽  
Optical Wireless Communications ◽  
Optical Crosstalk ◽  
Communication Links

High-speed rotary communication links exhibit high complexity and require challenging assembly tolerances. This article investigates the use of optical wireless communications (OWC) for on-axis rotary communication scenarios. First, OWC is compared with other state-of-the-art technologies. Different realization approaches for bidirectional, full-duplex links are discussed. For the most promising approach, a monolithic hybrid transmitter-receiver lens is designed by ray mapping methodology. Ray tracing simulations are used to study the alignment-depended receiver power level and to determine the effect of optical crosstalk. Over a distance of 12.5 m m , the lens achieves an optical power level at the receiver of − 16.2 dBm to − 8.7 dBm even for misalignments up to 3 m m .

Mobile Money and Mobile Technologies: A Structural Estimation

2020 ◽  
Author(s):  
Yan Dong ◽  
Sining Song ◽  
Sriram Venkataraman ◽  
Yuliang Yao
Keyword(s):  
Mobile Technology ◽  
Mobile Network ◽  
Mobile Technologies ◽  
Supply Side ◽  
Social Good ◽  
Mobile Money ◽  
The Past ◽  
Market Shares ◽  
Mobile Network Operators

Mobile money is a service bundled with mobile technology and a social good that promotes financial inclusion for the under-served populations. Although the effect of mobile money has been examined in the past, we look at the supply side effects as it is important for managers to understand the role of mobile money in both providing social good and making a profit. From 1G to 4G mobile technologies, mobile money consistently serves as a competitive advantage for mobile network operators (MNOs). However, this does not mean that the effect stays unchanged over the generations of mobile technology. Instead, when the 3G technology allows web browsing as a major upgrade of mobile functionality, MNOs with mobile money have a substantially larger set of options to differentiate from those without mobile money; and as a result, mobile money implemented with 3G and 4G leads to larger market shares than that with 1G and 2G.

Passive Optical Network System Performance Analysis Using a 10 Gbit/s DML

2014 ◽  
Vol 635-637 ◽  
pp. 1094-1097
Author(s):  
Di Ying Wu ◽  
Fan Bo Meng ◽  
Ran Li ◽  
Rong Sheng Liu ◽  
Fan Wu
Keyword(s):  
System Performance ◽  
Optical Network ◽  
Optical Power ◽  
Passive Optical Network ◽  
System Model ◽  
Network System ◽  
Power Budget ◽  
Fiber Nonlinearities ◽  
Linewidth Enhancement ◽  
Smart Grid System

As a promising technology for broadband communication, Passive Optical Network (PON) has been deployed to support the communication in smart grid system. This paper theoretically analyzes the influences on Directly Modulated Laser (DML)-based PON system performance including Bit Error Rate (BER) and power budget. First, we establish the DML-based PON system model, and then the system performances are simulated under different linewidth enhancement factor, received optical power and fiber length. Simulation results show the increase in received optical power to maintain a given BER due to fiber nonlinearities. This research provides a theoretical guidance on the PON system design.

scholarly journals Last mile mobile hybrid optical wireless access network routing enhancement

2019 ◽  
Vol 8 (1) ◽  
pp. 188-195
Author(s):  
Adam Wong Yoon Khang ◽  
Shamsul J. Elias ◽  
J. Pusppanathan ◽  
Nadiatulhuda Zulkifli ◽  
N. H. Halim ◽  
...  
Keyword(s):  
Routing Protocol ◽  
Optical Network ◽  
Access Network ◽  
Network Capacity ◽  
Passive Optical Network ◽  
Wireless Access ◽  
Optical Wireless ◽  
Front End ◽  
Last Mile ◽  
Wireless Access Network

This study focuses on mobile ad hoc networks (MANETs) that support Internet routing protocol imposing stringent resource consumption constraints of Quality of service (QoS). The mobile Internet causes the ongoing issue of inefficient use of the MANET resources due to its random nature of wireless environments. In this paper, the new improved architecture of the last mile mobile hybrid optical-wireless access network (adLMMHOWAN) is proposed and designed to tackle the arised issues. The proposed design is based on a unified wireless-wired network solution required the deployment of MANET-based wireless fidelity (WiFi) technology at the wireless front-end and wavelengths division multiplexing passive optical network (WDM PON) at the optical backhaul. The critical performance metrics such as network capacity and energy consumption based on modified AODVUU routing protocol using OMNeT++ software is analyzed with 2 scenarios, namely the number of nodes and mobility speed. This mode of communication results in better QoS network capacity of 47.07% improvement, with 26.85% reduction of lower energy resource consumption for mobile wireless front-end over passive optical network backhaul architecture when compared with the existing work of oRiq scheme that focus on improvement in MANETs.

scholarly journals NOMA and OMA-Based Massive MIMO and Clustering Algorithms for Beyond 5G IoT Networks

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Taj Rahman ◽  
Feroz Khan ◽  
Inayat Khan ◽  
Niamat Ullah ◽  
Maha M. Althobaiti ◽  
...  
Keyword(s):  
Computational Complexity ◽  
Interference Cancellation ◽  
Massive Mimo ◽  
Multiple Access ◽  
Clustering Algorithms ◽  
Mobile Network ◽  
Base Station ◽  
Signal Interference ◽  
Global Changes ◽  
Power Requirement

The Internet of Things (IoT) has brought about various global changes, as all devices will be connected. This article examines the latest 5G solutions for enabling a massive cellular network. It further explored the gaps in previously published articles, demonstrating that to deal with the new challenges. The mobile network must use massive multiple input and output (MIMO), nonorthogonal multiple access (NOMA), orthogonal multiple access (OMA), signal interference cancellation (SIC), channel state information (CSI), and clustering. Furthermore, this article has two objectives such as (1) to introduce the cluster base NOMA to reduce the computational complexity by applying SIC on a cluster, which ultimately results in faster communication and (2) to achieve massive connectivity by proposing massive MIMO with NOMA and OMA. The proposed NOMA clustering technique working principle pairs the close user with the far user; thus, it will reduce computational complexity, which was one such big dilemma in the existing articles. This will specifically help those users that are far away from the base station by maintaining the connectivity. Despite NOMA’s extraordinary benefits, one cannot deny the significance of the OMA; hence, the other objective of the proposed work is to introduce OMA with MIMO in small areas where the user is low in number, it is already in use, and quite cheap. The next important aspect of the proposed work is SIC, which helps remove interference and leads to enhancement in network performance. The simulation result has clearly stated that NOMA has gained a higher rate than OMA: current NOMA users’ power requirement (weak signal user 0.06, strong signal user 0.07), spectral efficiency ratio for P-NOMA and C-NOMA (21%, 5%), signal-to-noise ratio OMA, P-NOMA, C-NOMA (28, 40, 55%), and user rate pairs NOMA, OMA (7, 3), C-NOMA, and massive MIMO NOMA SINR (4.0, 2.5).

Optimization for Optical Network Designs Based on Existing Power Grids

2008 ◽  
Vol E91-B (3) ◽  
pp. 689-699 ◽  
Author(s):  
A. SRIPETCH ◽  
P. SAENGUDOMLERT
Keyword(s):  
Optical Network ◽  
Power Grids
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