Telecom
Software Defined Networking (SDN) and Network Function Visualization (NFV) for 5G

By Andrew Aroh
5G will lead to a paradigm shift towards a landscape dominated by wireless connectivity. Major architectural changes are already taking place to accompany this shift:

- Network Function Virtualization (NFV) will be pivotal
- Software Defined Networking (SDN) both at the core and edge of the network will be deployed.
- The architectural changes will provide:
- Increased computing power
- Scalability
- Reduced operational costs
- Creative business models to enable differentiation
- 3GPP has defined a service-based architecture where flexibility and dynamic adjustments are the key drivers to meet performance and cost requirements. This architecture defines network functions which can be triggered by other services leveraging Virtualization and Network Slicing.
- As a reference, Newtec, early in 2019, announced that it would be collaborating with Wind River to utilize its Titanium cloud Virtualization Platform to develop a Newtec Dialog.
- Wind River’s complete Network Functions Virtualization (NFV) Software Platform Infrastructure will help Newtec leapfrog these 5G requirements.
- The Titanium Cloud Platform delivers the features needed to successfully build and deploys a virtualized network running multiple Virtual Machines. It also promises lower-cost, highly flexible, and scalable infrastructure and will provide customers with the ability to get better service access anywhere in the world.
- With SND and NFV Customers and service providers will be able to scale their services to quickly address changing requirements.
- Introduction To SND:
- SDN is a Radio Access Network for 5G wireless standards
- Software Defined Networking is based on Software Radio (also called Software Defined Radio – SDR)
- SDR is a device in which the supported air interface can be changed through a software only upgrade.
- SRD techniques has been used in a variety of military and high-end commercial radio devices to date, especially in spectrum monitoring.
- A conventional SDR design exploits specialized processors such as digital signal processors (DSPs) or Field Programmable Gate Arrays (FPGAs) on a specialized hardware board with embedded codes specific to the application. This technology might be termed “FIRMWARE RADIO” to reflect its lack of portability and dependence on specific hardware devices.
- In contrast, a general standard SDR design is implemented as portable software (high-lever codes) running on industry- standard equipment. This is termed “SOFTWARE RADIO”.
- Typically, all of the software is written in C and C++ running on the Linux operating system.
- The entire system, including the signal processing for the air-interface, is simply a collection of software applications that can run on any general purpose processor (e.g Pentium, Xeon, PowerPc, ARM).
- The software is designed to allow multiple processors to run on same CPU or board, enabling a single server or blade to support multiple different air-interfaces at the same time, with capacity dynamically shared among all operating air-interfaces.
- The applied station subsystem brings together a suite of technologies that together provide flexibility, scalability and cost-effectiveness to network operators.
- The core Software Radio technology enables true multi-standard operation and takes advantage of industry-standard COTs servers, reducing both CAPEX and OPEX and significantly reducing requirements for on-site maintenance
- The use of advanced multi-carrier RF heads supports multi-standard operation and dynamic capacity reallocation.
- A switched-fabric standard networking protocol in the front haul makes distributed antenna system (DAS) solutions economical
- IP everywhere in the backhaul and switch connection enables the use of commodity equipment and multiplex network links.
- These benefits are the direct consequences of software-centric approach to the radio access network (RAN).
- The multi-standard software can turn on any of a wide range of server platforms and exploit any of a range of backhaul, fronthaul and RF head equipment, all based around industry-standard, commercially available platforms and networking protocols.
- The applied subsystem enables carriers to allocate valuable spectrum and backhaul resources to broadband data capacity only in those cells where the customers using the broadband service are active at any given time.
- Consequently, with the subsystems, network operators can focus infrastructure investments on system configurations that not only meet their specific requirements for features and scalability at minimal cost, but also significantly enhance business model flexibility through enabling software-only upgrades and on-demand spectrum and capacity allocation.
- In fact the SDR applied subsystem networks in both microcell and innovative vehicle picocell, enterprise in-building, and home deployments can enjoy significant cost and flexibility advantages over conventional alternatives.
Reducing the cost and complexity of managing wireless-based networks for 5G
- This involves :
- Remotely access, monitor and control hybrid networks of terrestrial and satellite broadband network equipment including:
- Routers
- Switches
- Servers
- Hubs/ Gateways
- Fire walls
- Wireless Access Points
- VSAT MODEMS
- Antenna Controllers
- RF Amplifiers
- GPS devices
- Power Controllers
- Reduce the time and resources spent on wireless network maintenance, support and recovery using SDR
- Increase business availability by providing always-up network monitoring and management.
- Enforce management security and enable compliance even during outages
- Centralize and standardize control of core and remote network infrastructure.
- SATCOM NFV:
- Satellite Network Function Visualization tool is a three-dimensional analysis and visualization environment that displays all scenario information from the software suite.
- The Visualization Provides an intuitive view of complex mission and orbit geometries by displaying realistic 3-D views of land, sea, air and space assets, sensor projections; Orbit trajectories and assorted visual cues and analysis aids.
- The tool takes advantage of today’s readily available Windows and Unix workstations to provide state-of-the-art interactive graphics performance. Its graphics are driven by precise, validated and verified numerical data drived from experts.
- How can NFV tool benefit your SATCOM NETWORK needs?
- One software tool for 3D-Visualization of integrated Land, Sea, Air and Space Assets.
- Ideal situational awareness tool for all phase of complex SATCOM NETWORK FUNCTIONS, and intelligent programs with real-time data interfacing
- 3-D Visualization with heads-up data display to support operations
- Professional-quality images, animations, and videos for executive briefings and presentations
- High-Fidelity (HiFi) Visualization of specialized design, analyses, and operations pertaining to collision avoidance, network coverage assessment and planning, Orbit determination, real-time Visualization, communication, Link analysis, and interference masking systems.
- Rapid anomaly resolution of satellite operations
- 3-D Visualization of Sophisticate Networks Integrations
- Visual design tools for specialized system engineering tasks
- Advanced Visualization Options provides advanced visualization and output Optimization such as terrain Visualization; a “Flying-camera” capability for sophisticated animation and video production, High-fidelity scence Modeling, Visual design tools for solar-array sizing and sensor Obscuration analysis, and highly realistic scence creation with day-light modeling and anti-aliasing.
Andrew Aroh is President of SSPI Nigeria
Telecom
Elon Musk Accuses South Africa of Racism over Starlink Licence Block

Elon Musk, CEO of SpaceX and owner of X, on Sunday criticised his birth country’s government, claiming that Starlink is being denied an operating licence on the basis that he is not black.

In a series of posts on his X handle, the South Africa-born billionaire referenced ongoing regulatory hurdles tied to the country’s Broad-Based Black Economic Empowerment policies.
He claimed the post-apartheid rules require telecommunications licensees to have at least 30 per cent ownership by historically disadvantaged groups, primarily Black South Africans, women, and people with disabilities.
He wrote, “South Africa won’t allow Starlink to be licensed, even though I was born there, simply because I am not black!
“We were offered many times the opportunity to bribe our way to a license by pretending that a black guy runs Starlink SA, but I have refused to do so on principle.
“Racism should not be rewarded no matter to which race it is applied. Shame on the racist politicians in South Africa.
“They should be shown no respect whatsoever anywhere in the world and shunned for being unashamedly racists!”
The dispute centres on licensing requirements enforced by the Independent Communications Authority of South Africa.
Starlink has not formally received a licence and has argued that current telecom regulations do not fully recognise Equity Equivalent Investment Programmes, alternatives to direct ownership transfers that allow companies to invest in skills development, infrastructure, or community projects instead.
South African officials have, over the years, repeatedly dismissed claims of racism, citing other foreign investors operating in the country.
They argued that the company has not submitted a complete formal application compliant with existing rules.
“Sir, that’s not true and you know it! It’s got nothing to do with your skin colour. Starlink is welcome to operate in South Africa provided there’s compliance with local laws.
“This is a global international trade and investment principle. There are over 600 USA companies investing and operating in #SouthAfrica…all complying and thriving! @Microsoft just announced additional investments yesterday,” South Africa’s Head of Public Diplomacy, Clayson Monyela, said in March 2025, when Musk initially raised the allegation.
Replying again via X on Sunday, he wrote, “@elonmusk watching the more than 600 USA companies investing more in, complying with #SouthAfrican laws and thriving. Zero drama!!.”
Telecom
Digital Realty, IXPN Expand Peering Network with New Internet Exchange Point of Presence in Nigeria

Digital Realty, the world’s largest cloud and carrier-neutral data center platform, today announced the activation of a new internet exchange point of presence (PoP) for the Internet Exchange Point of Nigeria (IXPN) at its newly commissioned data center in Ibeju-Lekki, Lagos.

This development marks a significant milestone in strengthening Nigeria’s digital infrastructure and elevating West Africa’s connectivity.
Building on IXPN’s existing PoP at Digital Realty’s campus located in Victoria Island, the newly activated PoP at the company’s Lekki data center extends IXPN’s reach, offering access from 12 data centers across Nigeria. IXPN is now uniquely available in all major data centers in Lagos, further positioning Lagos as a hub for local and regional interconnectivity.
Strategically located, Digital Realty’s Lekki data center serves as the landing point for the 2Africa subsea cable system, one of the world’s most expansive subsea cable projects, linking over 46 locations throughout Africa, Europe, the Middle East, and Asia.
This can deliver reliable, high-speed connectivity and can help enhance Nigeria’s role in the global digital economy. With the opening of Digital Realty’s Lekki data center alongside its campus in Victoria Island, Digital Realty became the first carrier-neutral data center provider in Lagos to operate two campuses, offering enhanced resilience and disaster recovery options for the industry.
With improved access to IXPN at the Digital Realty’s Lekki campus, networks and service providers can benefit from expanded, resilient public peering options. These enhancements can reduce latency, improve efficiency, support robust data exchange for content providers and cloud platforms, and enable enterprises to meet growing demands both locally and internationally.
This activation at our Lekki campus represents a deepening of Digital Realty commitment to connecting the local and regional digital economy to global networks,” said Ike Nnamani, Managing Director, Digital Realty in Nigeria. “By integrating IXPN’s exchange point, we are delivering resilient peering that enables lower latency and can increase operational efficiency for our customers.”
For IXPN, the move supports its expanding community of over 130 peering members – spanning ISPs, global content, and cloud operators – delivering greater resilience and more efficient local internet traffic exchange.
“Expanding IXPN to Digital Realty’s Lekki campus is a significant step in our journey to enhance connectivity across Nigeria,” said Muhammed Rudman, CEO, IXPN. “Our members are expected to benefit from faster, low-latency pathways, allowing broader digital inclusion and fueling Nigeria’s digital economy,” Rudman continued.
IXPN continues to play a pivotal role in localising internet traffic, a key factor in performance improvements and cost reductions. Peak domestic internet traffic at IXPN surpassed 1 terabit per second (Tbps) in April 2025 and grew to over 2 Tbps by March 2026, demonstrating IXPN’s significant role in local traffic exchange. Industry data shows that keeping traffic local reduces latency, boosts connectivity speeds, and delivers substantial annual savings for ISPs and content providers.
Telecom
SpaceX Hints at Home‑Built Chip Module for Starlink Mobile

SpaceX is signaling plans to develop its own radio‑frequency chip modules for the Starlink Mobile satellite‑to‑phone service, according to a new job posting for a Senior RF Front‑End Module Design Engineer.

What SpaceX Is Developing
The role is focused on designing “multi‑chip modules” containing RF front‑end components—such as antennas, signal tuners, and power amplifiers—that work alongside the modem in smartphones to transmit and receive 5G, LTE, and Wi‑Fi signals efficiently.
The engineer will integrate these RF modules into mass‑production printed circuit board assemblies and optimise yield and design for high‑volume manufacturing, indicating that SpaceX intends to take tighter control over the phone‑side radio hardware.
Link to Starlink Mobile Upgrade
The hiring move dovetails with SpaceX’s broader push to upgrade Starlink Mobile using valuable radio spectrum it acquired from EchoStar (parent of Boost Mobile), which the company plans to activate via next‑generation satellites launching in mid‑2027.
With that spectrum, SpaceX aims to boost downlink speeds for Starlink Mobile users to up to about 150 Mbps, a significant jump from the current roughly 4 Mbps, enabling 5G‑like connectivity directly from its satellites orbiting over 300 km above Earth.
Device‑Maker and Chip‑Partner Efforts
SpaceX has acknowledged that it will need about two years for phone manufacturers to adopt new chipsets tuned to the EchoStar spectrum bands, and at Mobile World Congress a SpaceX executive said the company is working closely with device and modem makers to enable the service on as many handsets as quickly as possible.
There are also reports that Samsung is developing a modem for the service, suggesting that SpaceX will combine its own RF‑front‑end modules with third‑party modems to deliver a full satellite‑to‑phone stack optimized for its low‑Earth‑orbit constellation.
Current Status of Starlink Mobile
Starlink Mobile today is offered mainly as a paid add‑on on T‑Mobile, while it is free on some of the carrier’s premium plans, and will later expand to Boost Mobile and prepaid carrier US Mobile.
Meanwhile, AT&T and Verizon are pursuing rival satellite‑to‑phone services via Texas‑based AST SpaceMobile, underscoring that direct‑to‑device connectivity is becoming a key battleground in the global telecom‑satellite convergence race.
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