At the national level, Mobile Number Portability (MNP) systems mainly depend on centralized clearinghouse models. In these models, telecom operators must align their records through a central intermediary. While this setup helps coordination between operators, it also adds significant operational burdens. Constant reconciliation, resolving disputes, and reliance on a central entity increase the system’s complexity. This can result in processing delays, bottlenecks, and a single point of failure. Centralization also affects regulatory oversight. Regulators often rely on fragmented audit trails that offer limited insight into the causes of disputes or performance problems, which restricts real-time auditability and transparency. Prior blockchain-based MNP studies include both conceptual proposals and implemented prototypes; however, their evidence remains heterogeneous across platforms, governance models, workflow definitions, and workload settings. This leaves uncertainty about the reproducibility and operating boundaries of regulator-integrated solutions. This study presents a permissioned blockchain framework based on Hyperledger Fabric. It redefines MNP as a deterministic state machine controlled by smart contracts and regulatory identities. The proposed framework eliminates the need for a central intermediary while maintaining transparency, accountability, and controlled participation. The experimental evaluation used two complementary phases. First, sequential baselines of N = 50 and N = 500 complete porting cycles were used to verify end-to-end workflow correctness, decompose stage latency, and assess latency stability as the number of sequential cycles increased; these tests were not treated as throughput or scalability benchmarks. Second, Hyperledger Caliper generated concurrent loads of 5, 10, and 15 transactions per second (TPS) to measure throughput, latency, success rate, and saturation behavior. The sequential cycle time remained about 15.3 seconds. Under concurrency, all transactions succeeded at 5 and 10 TPS, whereas at 15 TPS the achieved throughput plateaued at about 7.4 TPS, average latency rose to 30.77 seconds, and 122 transactions failed (13.5%), indicating that the single-host deployment had reached its observed saturation boundary. Because the aggregate Caliper report did not preserve transaction-level failure categories or resource measurements, the exact cause of each failed transaction could not be determined. The proposed framework is also compared with public blockchain platforms such as Ethereum. This comparison highlights characteristics of permissioned blockchain environments, including deterministic execution, controlled access, and the absence of a native gas fee per transaction. However, no direct quantitative performance or cost benchmark against Ethereum under identical conditions was performed. Overall, the findings suggest that permissioned blockchain frameworks can serve as a practical basis for modern telecom services under moderate concurrent workloads. However, high-volume production settings would need careful capacity planning, infrastructure scaling, and further performance improvements.
عنوان الرسالة
الباحث
أنور عبده احمد عبدالله الحرازي
مشرف الرسالة
أ.م.د/ خالد عبده البريهي
سنة الإقرار
تاريخ المناقشة
لغة الرسالة
إنجليزي
الملخص
