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Middle East University Faculty of Information Technology The Impact of End-to-End Latency on Modern Wireless Communication: Challenges and Solutions in 5G and Wi-Fi Networks. Prepared by: Osama Aljouhary-202510446 Instructor: Dr. Sadeq Al-Suhemat. Course: Wireless Network. The Challenge The core challenge is End-to-End IP Latency, specifically measured as Round-Trip Time (RTT). Unlike simple signal speed, this represents the total cumulative time for data to travel from a source device, across the entire network infrastructure to the server, and back. In modern wireless communication, achieving "deterministic" responsiveness is now more critical than raw bandwidth. 2. Causes and Effects • Causes: o Multi-Layer Accumulation: Processing delays added by every device (routers, firewalls, switches) across the OSI layers. o Physical Distance (Propagation Delay): Large geographical distances between the user and the cloud server. o Network Congestion & Handovers: Queuing delays during peak traffic and temporary spikes during "roaming" between Access Points. • Effects: o Operational Failure: High latency disrupts real-time feedback loops in industrial robotics (AMRs), leading to safety risks or production halts. o User Experience: Causes "motion sickness" in AR/VR systems if latency exceeds 50 ms and disrupts natural flow in VoIP/video calls. o Economic Impact: Significant financial losses in smart factories due to unsynchronized machinery. 3. Existing Solutions • 5G URLLC: Provides specialized "Ultra-Reliable Low-Latency" channels for mission-critical tasks (1–5 ms radio latency). • Wi-Fi 6/7 (OFDMA & TWT): Enhances determinism by allowing multiple devices to communicate simultaneously and scheduling precise wake/sleep times to reduce queuing. • Cisco URWB: A specialized backhaul technology ensuring "zero-millisecond handoffs" for high-speed moving assets like trains or factory robots. 4. Recommended Solution: Edge-Integrated Hybrid Architecture The proposed solution is to implement a Local Edge Computing model combined with a Multi-Access Wireless Strategy (5G and URWB). • Mechanism: By hosting the application logic at the "Local Edge" (within the enterprise network), the longest part of the data path—the public internet—is eliminated. • Why it Works: It addresses the root cause of physical distance. Bringing the server within 200 km of the device ensures the RTT remains consistently below the 10–20 ms threshold. • Outcome: This transforms the network from a "best-effort" system to a deterministic one, ensuring safety, reliability, and high performance for autonomous and interactive systems.
This presentation analyzes the impact of end-to-end IP latency (RTT) on contemporary wireless communications in 5G and Wi-Fi networks. It covers core challenges, causes like multi-layer delays, propagation distance, and congestion, and their effects on real-time applications such as AR/VR, industrial robotics, and smart factories. Existing solutions including 5G URLLC, Wi-Fi 6/7 OFDMA/TWT, and Cisco URWB are evaluated, with a recommended hybrid architecture leveraging local edge computing and multi-access wireless to achieve deterministic RTT under 10-20 ms for reliable performance.
The Impact of End-to-End Latency on Modern Wireless Communication: Challenges and Solutions in 5G and Wi-Fi Networks
Middle East University Faculty of Information Technology Prepared by: Osama Aljouhary - 202510446 Instructor: Dr. Sadeq Al-Suhemat Course: Wireless Network
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Core issue: End-to-End IP Latency (RTT) - total time for data round trip across network. Deterministic responsiveness > bandwidth.
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Multi-layer delays, distance, congestion → operational failures, poor UX, economic losses
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Causes
Effects
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5G URLLC, Wi-Fi 6/7 (OFDMA & TWT), Cisco URWB for low-latency channels
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📡 5G URLLC Specialized Ultra-Reliable Low-Latency channels for mission-critical tasks (1–5 ms radio latency)
📶 Wi-Fi 6/7 OFDMA & TWT: Multi-device simultaneous communication, precise wake/sleep scheduling to reduce queuing
🔗 Cisco URWB Backhaul tech for zero-millisecond handoffs in high-speed moving assets (trains, robots)
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Local Edge Computing + Multi-Access Wireless (5G & URWB)
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Implement Edge-Integrated Hybrid Architecture (Local Edge + 5G/URWB) Achieve <10-20 ms RTT for deterministic, safe, reliable wireless networks
Transforming challenges into opportunities Thank you! Questions?
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