Future Mobile

November 18, 2019

Digital Signal Processing in the Cloud Radio Access Network (C-RAN)

We are still waiting for the real entrance of the multi-core Digital Signal Processing (DSP) into the mobile networks. The reason why we are still waiting for the real breakthrough of virtualized DSP is basically laying in the type of mobile network functions suitable to be located on the multi-core DSP chips, as the high timing requirements are imposed by the rest of the network. This directly depends on which […]
November 18, 2019

Why Should We Process LTE Digital Signal Processing Functions in the Cloud?

In the following post, I will try to explain the importance and interests of the DSP processing in the cloud, including my vision of how it can be done and why it should be enabled. First of all, the processing of the DSP functions currently in the LTE is supported by the BBU (Baseband unit). BBUs are specialized hardware which process baseband signals coming from the RRUs (Radio Remote Units). […]
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

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 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 […]