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Smart mm-Wave Beam Steering Algorithm for Fast Link Re-Establishment under Node Mobility in 60 GHz Indoor WLANs

Published: 02 November 2015 Publication History

Abstract

Millimeter-wave (mm-wave) wireless local area networks (WLANs) are expected to provide multi-Gbps connectivity by exploiting the large amount of unoccupied spectrum in e.g. the unlicensed 60 GHz band. However, to overcome the high path loss inherent at these high frequencies, mm-wave networks must employ highly directional beamforming antennas, which makes link establishment and maintenance much more challenging than in traditional omnidirectional networks. In particular, maintaining connectivity under node mobility necessitates frequent re-steering of the transmit and receive antenna beams to re-establish a directional mm-wave link. A simple exhaustive sequential scanning to search for new feasible antenna sector pairs may introduce excessive delay, potentially disrupting communication and lowering the QoS. In this paper, we propose a smart beam steering algorithm for fast 60 GHz link re-establishment under node mobility, which uses knowledge of previous feasible sector pairs to narrow the sector search space, thereby reducing the associated latency overhead. We evaluate the performance of our algorithm in several representative indoor scenarios, based on detailed simulations of signal propagation in a 60 GHz WLAN in WinProp with realistic building materials. We study the effect of indoor layout, antenna sector beamwidth, node mobility pattern, and device orientation awareness. Our results show that the smart beam steering algorithm achieves a 7-fold reduction of the sector search space on average, which directly translates into lower 60 GHz link re-establishment latency. Our results also show that our fast search algorithm selects the near-optimal antenna sector pair for link re-establishment.

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  • (2024)Improving Angle Estimation via Feedback for Hybrid mmWave Systems Using Beamforming Virtual ArraysIEEE Transactions on Signal Processing10.1109/TSP.2023.332997772(249-259)Online publication date: 1-Jan-2024
  • (2024)Multi-Camera Views Based Beam Searching and BS Selection With Reduced Training OverheadIEEE Transactions on Communications10.1109/TCOMM.2024.335174872:5(2793-2805)Online publication date: May-2024
  • (2023)Link Discovery Extension to ns-3’s Terahertz Communication ModuleProceedings of the 2023 Workshop on ns-310.1145/3592149.3592153(52-59)Online publication date: 28-Jun-2023
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  1. Smart mm-Wave Beam Steering Algorithm for Fast Link Re-Establishment under Node Mobility in 60 GHz Indoor WLANs

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    cover image ACM Conferences
    MobiWac '15: Proceedings of the 13th ACM International Symposium on Mobility Management and Wireless Access
    November 2015
    114 pages
    ISBN:9781450337588
    DOI:10.1145/2810362
    Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than the author(s) must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected].

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    Published: 02 November 2015

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    Author Tags

    1. MM-wave
    2. beam steering
    3. link re-establishment
    4. mobility

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    Overall Acceptance Rate 83 of 272 submissions, 31%

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    View all
    • (2024)Improving Angle Estimation via Feedback for Hybrid mmWave Systems Using Beamforming Virtual ArraysIEEE Transactions on Signal Processing10.1109/TSP.2023.332997772(249-259)Online publication date: 1-Jan-2024
    • (2024)Multi-Camera Views Based Beam Searching and BS Selection With Reduced Training OverheadIEEE Transactions on Communications10.1109/TCOMM.2024.335174872:5(2793-2805)Online publication date: May-2024
    • (2023)Link Discovery Extension to ns-3’s Terahertz Communication ModuleProceedings of the 2023 Workshop on ns-310.1145/3592149.3592153(52-59)Online publication date: 28-Jun-2023
    • (2023)Reinforcement Learning-based Joint Handover and Beam Tracking in Millimeter-wave Networks2023 IEEE Wireless Communications and Networking Conference (WCNC)10.1109/WCNC55385.2023.10118761(1-6)Online publication date: Mar-2023
    • (2022)Training Beam Sequence Design for mmWave Tracking Systems With and Without Environmental KnowledgeIEEE Transactions on Wireless Communications10.1109/TWC.2022.318716721:12(10780-10795)Online publication date: Dec-2022
    • (2022)BeamSurfer: Minimalist Beam Management of Mobile mm-Wave DevicesIEEE Transactions on Wireless Communications10.1109/TWC.2022.317118921:11(8935-8949)Online publication date: Nov-2022
    • (2022)Comparative Evaluation of Millimeter-Wave Beamsteering Algorithms Using Outdoor Phased Antenna Array Measurements2022 19th Annual IEEE International Conference on Sensing, Communication, and Networking (SECON)10.1109/SECON55815.2022.9918162(497-505)Online publication date: 20-Sep-2022
    • (2022)Joint Beam Training and Data Transmission Control for mmWave Delay-Sensitive Communications: A Parallel Reinforcement Learning ApproachIEEE Journal of Selected Topics in Signal Processing10.1109/JSTSP.2022.314348816:3(447-459)Online publication date: Apr-2022
    • (2021)User Scheduling and Beam Alignment in mmWave Networks With a Large Number of Mobile UsersIEEE Transactions on Wireless Communications10.1109/TWC.2021.307470020:10(6481-6492)Online publication date: Oct-2021
    • (2021)Training Beam Sequence Design for Multiuser Millimeter Wave Tracking SystemsIEEE Transactions on Communications10.1109/TCOMM.2021.309654369:10(6939-6955)Online publication date: Oct-2021
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