Mobile network coverage in Africa: optimization challenges and field solutions

Sub-Saharan Africa and the Maghreb are today among the most dynamic growth markets for mobile telecommunications. With mobile penetration rates exceeding 80% in some countries, and mobile data demand surging (+40% per year in Sub-Saharan Africa according to GSMA), mobile network optimization has become a major strategic priority for operators in the region.

Market overview: state of mobile coverage in Africa in 2025

Morocco

Morocco has one of the most advanced mobile networks in North Africa. Maroc Telecom, Inwi, and Orange Maroc have deployed 4G LTE across all urban areas with rural deployment underway. 5G NR is in pilot phase in Casablanca and Rabat since 2023-2024.

Morocco network specifics:

• Dominant LTE bands: B3 (1800 MHz), B7 (2600 MHz), B20 (800 MHz)
• 4G coverage: >97% of the population in urban areas
• Main challenge: indoor coverage in the medinas and old cities of Fez and Marrakech (thick walls, narrow streets)

Algeria

Mobilis, Djezzy, and Ooredoo Algeria serve a market of 45 million subscribers. 4G is deployed in major cities (Algiers, Oran, Constantine) with gaps in rural and mountainous areas.

Specifics:

• Rugged terrain (Atlas, Hoggar mountains) leading to significant propagation challenges
• LTE bands: B3, B7, B20
• 5G under regulatory discussion

Tunisia

Tunisie Telecom, Ooredoo Tunisia, and Orange Tunisia have deployed 4G Advanced across the entire territory. Tunisia is often cited as a regional benchmark for the quality of its LTE deployments.

Francophone Sub-Saharan Africa

Ivory Coast (Orange, MTN, Moov), Senegal (Orange, Free, Expresso), Cameroon, DRC, Mali — 4G LTE is in active deployment in capitals and major cities. 3G remains dominant in semi-rural areas.

The 5 specific challenges for network optimization in Africa

Challenge 1: Topography and radio propagation

Africa presents highly varied topographies that directly impact network planning and optimization:

• Sahelian zones (Mali, Niger, Chad): very long-range propagation possible on flat terrain, but shrub vegetation creating complex attenuation lobes
• Forest zones (Cameroon, Gabon, DRC): massive attenuation from dense vegetation, greatly reduced cell range
• Coastal zones (Dakar, Abidjan, Casablanca): marine reflection improving propagation but creating long-distance interference
• Mountainous zones (Atlas, Rif, Ethiopia): coverage holes in valleys, line-of-sight propagation only

Key tool: drive testing with GPS correlation is essential to precisely map actual coverage zones vs theoretical coverage (often overly optimistic in the propagation models used).

Challenge 2: Power supply infrastructure

In Sub-Saharan Africa, power grid reliability is a major challenge:

• Frequent load shedding (sometimes 8-12h/day during dry season in some countries)
• Radio sites often run on batteries + diesel generators
• Power outages generate mass RRC Release events, leading to sudden KPI degradation

Impact on optimization: distinguishing performance degradations due to radio problems (handover, interference) from degradations due to sites going offline (power or backhaul issues). L3 messages enable this distinction: a site going offline generates RRC Connection Setup Failure with specific Physical layer problems causes.

Challenge 3: Equipment and measurement tool costs

The cost of a professional drive test kit (traditional tool + laptop + scanner) is often inaccessible for local optimization teams in Sub-Saharan Africa. A complete kit at 50,000-80,000 EUR represents several years of senior engineer salary in some countries.

This economic constraint has a direct impact on network optimization quality:

• Infrequent measurement campaigns (once per quarter instead of once per week)
• Limited geographic coverage (only major cities are measured)
• Dependency on network-side PM (Performance Management) data, without field validation

Solution: smartphone-based Android measurement tools reduce the cost to a fraction (SaaS license vs hardware purchase). A field engineer in Morocco, Ivory Coast, or Senegal can access the same data as an engineer in Europe — L3 decoding, RF KPIs, voice MOS, QMDL export — with a standard Qualcomm smartphone and a software license.

Challenge 4: Explosive growth in data demand

Mobile data consumption in Sub-Saharan Africa is growing at 40% per year (GSMA 2024). This growth, combined with sometimes lagging infrastructure investment, generates severe capacity problems in major African cities.

Concrete manifestations:

• PRB Utilization > 90% during peak hours in business districts
• Median DL throughput < 5 Mbps in areas where planning predicted 20+ Mbps
• Call Drop Rate elevated due to signaling overload (CSSR degraded by MME overload)

Priority indicators to monitor in Africa: PRB Utilization, CSSR, median DL throughput. These three KPIs capture the capacity problems that are the primary cause of degradation in high-growth markets.

Challenge 5: Skills and training

Optimization teams in many African countries lack training on advanced techniques (5G NR optimization, Layer 3 analysis, MOS measurement). Vendor training programs are expensive and often available only in English.

Identified need: intuitive measurement tools, with practical guides in French, and accessible field training — an opportunity for software vendors who seriously target this market.

Recommended solutions by problem type

For operators in dense urban areas (Algiers, Casablanca, Abidjan, Dakar)

Typical problem: PRB saturation + pilot pollution in city centers.

Recommended actions:

1. Systematic drive test and indoor walk test in high-traffic zones
2. Frequency plan optimization (reducing overlapping on B3/B7)
3. Small cell deployment in hot spots (shopping malls, train stations, campuses)
4. Carrier aggregation (CA) to maximize throughput in well-covered areas

For operators in rural and semi-rural areas

Typical problem: insufficient coverage, infrequent sites.

Recommended actions:

1. Tilt and azimuth optimization of existing sites (maximize range)
2. Prioritize the 700/800 MHz band (better penetration, greater range)
3. Deploy sites on lightweight infrastructure (low-cost pylons, solar solutions)
4. Drive test on main road axes to identify coverage holes

For SSV/CV acceptance (site validation)

Subcontractors deploying new sites in Africa need legitimate acceptance tools at an accessible cost. QMDL export + L3 reports constitute the technical evidence for client validation.

Recommendation: Android suite with QMDL export + KPI CSV report + GPS heatmap — deliverables sufficient for most operator acceptances in Africa.

Gulf and Middle East: a mature 5G market

Unlike Sub-Saharan Africa, Gulf countries (Saudi Arabia, UAE, Qatar, Bahrain, Kuwait) and the broader Middle East have deployed 5G SA massively since 2020-2021. STC, e& (Etisalat), Zain, Ooredoo, and stc Bahrain are among the most advanced 5G operators globally.

Gulf-specific challenges:

• 5G SA already operational — optimization of 5G NR parameters (beam management, NSA to SA migration)
• Indoor coverage in high-density buildings (Low-E glass, concrete + metal)
• Video streaming performance (mobile IPTV, connected stadiums) — video QoE is critical
• Industrial use (Industry 4.0 on private 5G networks) — latency and reliability

Conclusion: network optimization in Africa and the Gulf, a market opportunity

African and Gulf markets share a growing demand for mobile network optimization skills and tools. While needs and economic constraints differ, the requirement for reliable, accurate, and accessible measurement tools is universal.

For telecom engineering teams operating in these regions, smartphone-based Android measurement solutions represent a paradigm shift: professional-quality data (Layer 3, RF KPIs, voice/video MOS, QMDL export) at an accessible cost, without heavy training or specialized equipment.