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- W4289536768 abstract "Extreme mobility becomes a norm rather than an exception with emergent high-speed rails, drones, industrial IoT, and many more. However, 4G/5G mobility management is not always reliable in extreme mobility, with non-negligible failures and policy conflicts. The root cause is that, existing mobility management is primarily based on wireless signal strength. While reasonable in static and low mobility, it is vulnerable to dramatic wireless dynamics from extreme mobility in triggering, decision, and execution. We devise <monospace xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>REM</monospace> , Reliable Extreme Mobility management for beyond 5G cellular networks while maintaining backward compatibility to 4G/5G. <monospace xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>REM</monospace> shifts to movement-based mobility management in the delay-Doppler domain. Its signaling overlay relaxes feedback via cross-band estimation, simplifies policies with provable conflict freedom, and stabilizes signaling via scheduling-based OTFS modulation. Our evaluation with operational high-speed rail datasets shows that, <monospace xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>REM</monospace> reduces failures comparable to static and low mobility, with low signaling and latency cost. <monospace xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>REM</monospace> reduces the network failures by up to an order of magnitude, eliminates policy conflicts, and improves application performance by 31.8% - 88.3% compared to legacy 4G/5G." @default.
- W4289536768 created "2022-08-03" @default.
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- W4289536768 date "2023-02-01" @default.
- W4289536768 modified "2023-09-26" @default.
- W4289536768 title "Movement-Based Reliable Mobility Management for Beyond 5G Cellular Networks" @default.
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- W4289536768 doi "https://doi.org/10.1109/tnet.2022.3190788" @default.
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