Literature Database Entry

pescher2025investigating

Emile Pescher, "Investigating Synchronous Transmission and Reception Strategies of Wi-Fi 7 Multi-Link Operation," Bachelor Thesis, School of Electrical Engineering and Computer Science (EECS), TU Berlin (TUB), August 2025. (Advisor: Doğanalp Ergenç; Referees: Falko Dressler and Thomas Sikora)

Abstract

Over the past decades, internet data traffic has grown exponentially, with Wireless Local Area Networks (WLANs) serving as the dominant access medium.The IEEE 802.11 standard, commonly referred to as Wi-Fi, defines the protocols for WLAN communication. Its latest evolution, IEEE 802.11be (Wi-Fi 7), introduces multi-link operation (MLO), enabling devices to utilize multiple communication pathways simultaneously. While MLO significantly enhances throughput, the concurrent transmission and reception of data (Simultaneous TX and RX (STR)) introduces in-device coexistence interference (IDC). To mitigate this, the standard supports a synchronized mode (Non-simultaneous TX and RX (NSTR)) that aligns uplink data units, synchronizing frame transmissions and the subsequent ACK messages to prevent a transmitting interface from interfering with a receiving one. The existing literature proposes various strategies to achieve this synchronization, though none provide a universally optimal solution. This thesis first suggests a classification of synchronous MLO channel access strategies, distilled from the available literature. It then outlines an implementation scheme, with the Longest Backoff strategy implemented in practice. For the implementation and simulation purposes, the simulation tool Objective Modular Network Testbed in C++ (OMNeT++) was used. Finally, it presents simulation results demonstrating the achieved alignment of the Protocol Data Units (PDUs), with the overarching goal of contributing these findings and implementations to an open-source project developing MLO in OMNeT++.

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Emile Pescher

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@phdthesis{pescher2025investigating,
    author = {Pescher, Emile},
    title = {{Investigating Synchronous Transmission and Reception Strategies of Wi-Fi 7 Multi-Link Operation}},
    advisor = {Ergen{\c{c}}, Do{\u{g}}analp},
    institution = {School of Electrical Engineering and Computer Science (EECS)},
    location = {Berlin, Germany},
    month = {8},
    referee = {Dressler, Falko and Sikora, Thomas},
    school = {TU Berlin (TUB)},
    type = {Bachelor Thesis},
    year = {2025},
   }
   
   

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Last modified: 2026-04-20