195 research outputs found
Review of network integration techniques for mobile broadband services in next generation network
Next Generation Network (NGN) is intended at integrating the existing heterogeneous wireless access networks in order to produce a composite network that provides users with ubiquitous broadband experience. Currently, it has been established that Long Term Evolution (LTE) network, as a backbone network, provides broadband capacity with high efficiency, reduced latency and improved resource provisioning. Resource provisioning on this backbone network is not without its limitation as more mobile broadband services (MBBs) are evolving and users demand for mobility is on the increase. This paper, therefore, reviewed the different integration techniques for the heterogeneous networks that use LTE network as backbone that supports mobile broadband services.Keywords: MBB, NGN, LTE, SIP, Qo
Fixed-Mobile Convergence in the 5G era: From Hybrid Access to Converged Core
The availability of different paths to communicate to a user or device
introduces several benefits, from boosting enduser performance to improving
network utilization. Hybrid access is a first step in enabling convergence of
mobile and fixed networks, however, despite traffic optimization, this approach
is limited as fixed and mobile are still two separate core networks
inter-connected through an aggregation point. On the road to 5G networks, the
design trend is moving towards an aggregated network, where different access
technologies share a common anchor point in the core. This enables further
network optimization in addition to hybrid access, examples are userspecific
policies for aggregation and improved traffic balancing across different
accesses according to user, network, and service context. This paper aims to
discuss the ongoing work around hybrid access and network convergence by
Broadband Forum and 3GPP. We present some testbed results on hybrid access and
analyze some primary performance indicators such as achievable data rates, link
utilization for aggregated traffic and session setup latency. We finally
discuss the future directions for network convergence to enable future
scenarios with enhanced configuration capabilities for fixed and mobile
convergence.Comment: to appear in IEEE Networ
Architectural Challenges and Solutions for Collocated LWIP - A Network Layer Perspective
Achieving a tighter level of aggregation between
LTE and Wi-Fi networks at the radio access network (a.k.a.
LTE-Wi-Fi Aggregation or LWA) has become one of the most
prominent solutions in the era of 5G to boost network capacit
y
and improve end user's quality of experience. LWA offers
flexible resource scheduling decisions for steering user tr
affic
via LTE and Wi-Fi links. In this work, we propose a Collocated
LTE/WLAN Radio Level Integration architecture at IP layer
(C-LWIP), an enhancement over 3GPP non-collocated LWIP
architecture. We have evaluated C-LWIP performance in vari
ous
link aggregation strategies (LASs). A C-LWIP node (
i.e.
, the node
having collocated, aggregated LTE eNodeB and Wi-Fi access
point functionalities) is implemented in NS-3 which introd
uces a
traffic steering layer (
i.e.
, Link Aggregation Layer) for efficient
integration of LTE and Wi-Fi. Using extensive simulations,
we
verified the correctness of C-LWIP module in NS-3 and evaluat
ed
the aggregation benefits over standalone LTE and Wi-Fi netwo
rks
with respect to varying number of users and traffic types. We
found that split bearer performs equivalently to switched b
earer
for UDP flows and switched bearer outperforms split bearer in
the case of TCP flows. Also, we have enumerated the potential
challenges to be addressed for unleashing C-LWIP capabilit
ies.
Our findings also include WoD-Link Aggregation Strategy whi
ch
is shown to improve system throughput by 50% as compared to
Naive-LAS in a densely populated indoor stadium environmen
t
Survey of Spectrum Sharing for Inter-Technology Coexistence
Increasing capacity demands in emerging wireless technologies are expected to
be met by network densification and spectrum bands open to multiple
technologies. These will, in turn, increase the level of interference and also
result in more complex inter-technology interactions, which will need to be
managed through spectrum sharing mechanisms. Consequently, novel spectrum
sharing mechanisms should be designed to allow spectrum access for multiple
technologies, while efficiently utilizing the spectrum resources overall.
Importantly, it is not trivial to design such efficient mechanisms, not only
due to technical aspects, but also due to regulatory and business model
constraints. In this survey we address spectrum sharing mechanisms for wireless
inter-technology coexistence by means of a technology circle that incorporates
in a unified, system-level view the technical and non-technical aspects. We
thus systematically explore the spectrum sharing design space consisting of
parameters at different layers. Using this framework, we present a literature
review on inter-technology coexistence with a focus on wireless technologies
with equal spectrum access rights, i.e. (i) primary/primary, (ii)
secondary/secondary, and (iii) technologies operating in a spectrum commons.
Moreover, we reflect on our literature review to identify possible spectrum
sharing design solutions and performance evaluation approaches useful for
future coexistence cases. Finally, we discuss spectrum sharing design
challenges and suggest future research directions
Developments of 5G Technology
This technology is the future of current LTE technology which would be a boost to the future of wireless and computer networks, as the speeds would be way higher than the current LTE networks, which will push the technology to a new level. This technology will make the radio channels to support data access speeds up to 10 Gb/s which will turn the bandwidth radio channels as WiFi. Comparing it with other LTE technology\u27s it has high speed and capacity, support interactive multimedia, voice, internet and its data rate is 1 Gbps which makes it faster than other LTE’s . This is much more effective than other technology’s due to its advanced billing interfaces. This paper provides detail explanation of 5G technology, its architecture, challenges, advantages and disadvantages, issues and ends with future of 5G technology
Multi-Connectivity Management and Orchestration Architecture Integrated With 5g Multi Radio Access Technology Network
The significant growth in the number of devices and the tremendous boost in
network/user traffic types and volume as well as the efficiency constraints of 4G
innovations have encouraged industry efforts and also financial investments towards
defining, developing, and releasing systems for the fifth generation. The 5G of mobile
broadband wireless networks with multiple Radio Access Technologies (Multi-RATs)
have actually been designed to satisfy the system and service requirements of the
existing as well as the coming applications. The multi-RAT access network is
considered the key enabling technology to satisfy these requirements based on low
latency, high throughput. To utilize all available network resources efficiently, research
activities have been proposed on multi-connectivity to connect, split, steer, switch, and
orchestrate across multiple RATs. Recently, multi-connectivity management and
orchestration architecture standardization has just started; therefore, further study and
research is needed. This project proposed a multi-connectivity management and
orchestration architecture integrated with 5G, Long-Term Evolution (LTE), and
Wireless LANs (WLAN) technologies. The simulations experiments conducted to
measure the Quality of Experience (QoE) by provisioning network resources
efficiently, which are: data rate, latency, bit error rate. The results show that the 5G
requirements have been achieved with latency and throughput around 1ms and 200
Mbps, respectively
Techno-economic analysis of a 5G network in Spain
Information society and mobile society are two concepts that are both linked and undeniable. The first one refers to the necessity of high amount of information to develop most aspects of our lives, while the second one is related to the importance of mobile devices to get, analyse and use that information. In other words, every mobile device (that embraces not only mobile phones but also many other gadgets) has become a tool that shall interact with information.
In order to fulfil those needs, technology has evolved, resulting into faster, more secure and more reliable networks. Needless to say, mobile networks are playing an indispensable role, as long as the society is evolving to a more and more mobile one, as above mentioned. Furthermore, new applications that had not been even imagined years ago must be fulfilled as well (i.e. smart cities).
There are many industries that carry the weight of this progress. Companies of various sectors of our economy must develop each piece of the puzzle to ensure that the jigsaw is solved. Another important player should not be forgotten. The regulatory institutions and frameworks must coordinate all this investigations and progress in order to assure the universality, integrity and reachability of itself.
The purpose of this document is to consider what the mobile communications needs of today’s society are, what they will be on a short, mid and long run, and how can they be solved. To face this task, the two main actors above mentioned will be taken into account. From the regulatory perspective, the proposals and law measures (i.e. IMT-2020 and new frequency allocations) must be considered, as well as the technical requirements for 5G generation, whether to be considered the subsequent evolution of LTE network or a new network, or even both. From the mobile companies’ point of view, a dense analysis on technical solutions to reach the above mentioned requirements will be followed by an economic analysis to discuss the profitability of the deployment of a 5G network.
It must be understood that this study contemplates several scenarios, due to the different possibilities in terms of the spectrum policies and demand evolution in the forthcoming years. To this end, the several scenarios combined with the different cases of use must be taken into account, as well as many other KPIs. The coherent combination and analysis of all this parameters will reveal the requirements’ feasibility amongst varying scenarios.Ingeniería en Tecnologías de Telecomunicació
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