MARKOV MULTI-BEAMTRACKING ON 60 GHZ MOBILE CHANNEL MEASUREMENTS

Markov Multi-Beamtracking on 60 GHz Mobile Channel Measurements

Markov Multi-Beamtracking on 60 GHz Mobile Channel Measurements

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Beamforming training refers to the exhaustive scan over which the transmitter and receiver jointly steer their beams along a predefined set of double-directional angles to determine the beam pairs that coincide with the dominant dodge warlord for sale propagation paths of the channel, for spatial multiplexing at millimeter-wave.When mobile, training necessitates a high refresh rate to maintain connectivity and so, to reduce overhead, beamtracking algorithms exploit the spatial-temporal consistency of the channel to localize the scan around the beam pairs determined at a previous time.The algorithms’ true performance, however, is still unknown since results reported to date are based on oversimplified channel models.In this paper, we propose a novel beamtracking algorithm formulated as a first-order Markov process that supports multiple beam pairs.The algorithm is evaluated through actual channel measurements – not a channel model – recorded with our high-precision 3D double-directional 60 GHz channel sounder.

The measurement campaign, to our knowledge, is unprecedented: with 10, 895 large-scale measurements, spaced 8.8 cm apart on average to emulate continuous motion, over which the mobile receiver traversed a total of 900.2 m.We demonstrate that four beam pairs can be sustained always and that eight pairs can be 3 piece horse wall art sustained 57% of the time.

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