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MobiSteer: using steerable beam directional antenna for vehicular network access

Published: 13 June 2007 Publication History

Abstract

In this work, we investigate the use of directional antennas and beam steering techniques to improve performance of 802.11 links in the context of communication between amoving vehicle and roadside APs. To this end, we develop a framework called MobiSteer that provides practical approaches to perform beam steering. MobiSteer can operate in two modes - cached mode - where it uses prior radiosurvey data collected during "idle" drives, and online mode, where it uses probing. The goal is to select the best AP and beam combination at each point along the drive given the available information, so that the throughput can be maximized. For the cached mode, an optimal algorithm for AP and beam selection is developed that factors in all overheads.
We provide extensive experimental results using a commercially available eight element phased-array antenna. In the experiments, we use controlled scenarios with our own APs, in two different multipath environments, as well as in situ scenarios, where we use APs already deployed in an urban region - to demonstrate the performance advantage of using MobiSteer over using an equivalent omni-directional antenna. We show that MobiSteer improves the connectivity duration as well as PHY-layer data rate due to better SNR provisioning. In particular, MobiSteer improves the throughput in the controlled experiments by a factor of 2 - 4. In in situ experiments, it improves the connectivity duration by more than a factor of 2 and average SNR by about 15 dB.

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          cover image ACM Conferences
          MobiSys '07: Proceedings of the 5th international conference on Mobile systems, applications and services
          June 2007
          310 pages
          ISBN:9781595936141
          DOI:10.1145/1247660
          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 ACM 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: 13 June 2007

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          Author Tags

          1. fast handoff
          2. phased-array antenna
          3. steerable beam
          4. vehicular internet access

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          • (2019)Defected Ground Based Fractal Antenna for S and C Band ApplicationsWireless Personal Communications10.1007/s11277-019-06714-2Online publication date: 20-Aug-2019
          • (2019)Hybrid Fractal Antenna Using Meander and Minkowski Curves for Wireless ApplicationsWireless Personal Communications10.1007/s11277-019-06622-5Online publication date: 20-May-2019
          • (2018)Systems Analysis of a Pattern Reconfigurable Antenna for Capacity Improvement of Cell Edge Users in Cellular NetworksIEEE Transactions on Vehicular Technology10.1109/TVT.2018.287578067:12(11848-11857)Online publication date: Dec-2018
          • (2018)Placement of Virtual Network Functions in Hybrid Data Center NetworksIEEE Transactions on Multi-Scale Computing Systems10.1109/TMSCS.2018.28489494:4(861-873)Online publication date: 1-Oct-2018
          • (2018)Conformal Beam-Steering Antenna Controlled by a Raspberry Pi for Sustained High-Throughput ApplicationsIEEE Transactions on Antennas and Propagation10.1109/TAP.2017.277951866:2(918-926)Online publication date: Feb-2018
          • (2018)FML: Fast Machine Learning for 5G mmWave Vehicular CommunicationsIEEE INFOCOM 2018 - IEEE Conference on Computer Communications10.1109/INFOCOM.2018.8485876(1961-1969)Online publication date: Apr-2018
          • (2018)A Multicast Technique for Fixed and Mobile Optical Wireless Backhaul in 5G NetworksIEEE Access10.1109/ACCESS.2018.28329806(27491-27506)Online publication date: 2018
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