November 18, 2019

A Brief Introduction into 5G Mobile Network

In this post, I will try to introduce you a little bit better into the upcoming 5G network. In general, the new generation of mobile networks is called 5G and it has a certain improvement in comparison with previous mobile networks. This mobile network is already tested in the real environment scenarios, apart from the laboratory tests, by several companies like Huawei, Samsung, and Vodafone. The main goals of the […]
May 13, 2019

Caching at the Edge

The tremendous data traffic demand and the arrival of new mobile services will lead to unwieldy traffic congestion in mobile communications networks over the next decade. This situation, which is similar to the one experienced in the Internet network in the 2000s, has established parallelisms between 5G –the future mobile communications generation- and the Internet network, thus paving the way for similar solutions to similar problems. In this context, mainly […]
May 13, 2019

Optimization of Radio Access Networks Architecture for 5G

This post is prepared for non-technical readers and the general public.    Introduction Mobile networks are growing fast and pushed by various applications, demanding lower latency, higher traffic volumes, and ultra-reliable connectivity. This led industry to renew their networks while keeping the costs down in order to meet diversified demands with competitive prizes. The International Telecommunication Union (ITU) categorized 5G mobile network services into three use cases [1]: Enhanced Mobile […]
December 20, 2018

Popular Content Caching in 5G and Beyond Mobile Networks

The 5G and beyond network system aims to satisfy the widest range of access and connectivity requirements in the mobile and wireless communications. In addition, it aims at providing an extremely flexible platform offering ubiquitous connectivity for any kind of device and service in the globe. The 5G wireless capability includes massive system capacity, very high data rate everywhere, very low latency, ultra-high reliability and availability, very low operational cost […]
December 20, 2018

Modelling the 5G core for low latency scenarios

In mobile communication, simply put, latency is the time user traffic takes to travel between the user mobile smartphone and the service in the network (e.g., a video streaming server). Dependent of the type of application, the less is this time the better is the experience from the user point of view: what if you have to wait 10 seconds for your video to start? You would probably not appreciate […]
December 5, 2018

Splitting Network Functions in 5G

5G networks are expected to support various applications with a high flexibility meeting diversity of requirements in terms of latency, data rates and massive connectivity.   A 5G network function (NF) supply a particular capability to support communication through a 5G network. NFs are normally virtualized, but some functions may need addition of more specialized hardware. NFs can be the functions that are common functions which are essential for all […]
September 16, 2018

Data Compression

Distributed source coding (DSC) is a data compression technique that deals with two physically separated but statistically correlated sources which do not communicate with each other [1]. A DSC scheme depends on the basis that the encoding will be separated, but with joint decoding of the dependent sources. Moreover, with the DSC theory, independent encoding can be designed as efficiently as joint encoding. Furthermore, sometimes the correlated source signals are […]
September 14, 2018

Mobile ultra-reliability and low latency in 5G

Mobile networks must meet the emerging demands of services and applications with crucial latency and reliability requirements. Ultra Reliable Low Latency Communication (URLLC) is one of the key services in 5G communications with various applications such as remote control, autonomous driving, and tactile internet. In general, reliability is defined as the probability that data with a given latency is successfully delivered, and it is critical for safety in many up […]
September 7, 2018

Inside the 5G core: current status and research opportunities

3GPP is the organization responsible for the specification of the 5G architecture and its operation, which is currently arrived at Release 15. [1] The entire 5G architecture  can be divided into an access network (AN), composed of all the physical apparatus and logical elements needed for radio connectivity to user equipment (UE – e.g., Smartphones, IoT devices, vehicles, etc.), and the 5G core (5GC), which manages the user end-to-end connection […]