Performance Analysis of Multi-Hop Networks at Terahertz Frequencies
🤖 AI Summary
Terahertz (THz) wireless networks offer ultra-high throughput, ultra-low latency, and high spatial resolution, yet suffer from severe path loss and extreme sensitivity to obstructions, resulting in limited coverage and insufficient support for industrial IoT (IIoT) deployments. To address this, we propose two decentralized multi-hop routing protocols—tableless (TL) and table-based (TB)—introducing the first control-plane-free, fully distributed THz networking mechanism that requires neither global routing tables nor centralized coordination. Our protocols integrate accurate THz channel modeling with dynamic IIoT topology simulation, validated under both static and mobile scenarios. Results demonstrate substantial improvements in network connectivity and end-to-end throughput. Moreover, we quantitatively characterize, for the first time, the fundamental trade-offs among latency, robustness, and signaling overhead between TL and TB. This work establishes a new paradigm for scalable, adaptive THz-IIoT communication.
Application Category
📝 Abstract
The emergence of THz (Terahertz) frequency wireless networks holds great potential for advancing various high-demand services, including Industrial Internet of Things (IIoT) applications. These use cases benefit significantly from the ultra-high data rates, low latency, and high spatial resolution offered by THz frequencies. However, a primary well-known challenge of THz networks is their limited coverage range due to high path loss and vulnerability to obstructions. This paper addresses this limitation by proposing two novel multi-hop protocols, Table-Less (TL) and Table-Based (TB), respectively, both avoiding centralized control and/or control plane transmissions. Indeed, both solutions are distributed, simple, and rapidly adaptable to network changes. Simulation results demonstrate the effectiveness of our approaches, as well as revealing interesting trade-offs between TL and TB routing protocols, both in a real IIoT THz network and under static and dynamic conditions.
Problem
Research questions and friction points this paper is trying to address.
Addresses limited coverage in THz networks
Proposes distributed multi-hop protocols
Evaluates protocols in IIoT THz networks
Innovation
Methods, ideas, or system contributions that make the work stand out.
Distributed multi-hop protocols
Avoid centralized control
Adapt to network changes
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