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Order-Optimal Multiple-Access Channel for Massive MIMO via Group Testing Decoding
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DOI：10.1109/TCOMM.2024.3366813.png)
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Abstract
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The number of wireless devices continues to grow, and more antennas per device are added, increasing the challenge of efficient resource allocation, especially for uplink streams. To address this, we propose a novel massive multiple-user multiple-input-multiple-output (MU-MIMO) scheme based on Group Testing (GT) with non-cooperative self-scheduling users, reducing the required overhead and complexity. Specifically, we show that out of a population of N devices with M messages each, it is possible for the base station (BS) to jointly identify and decode up to K devices, unknown in advance, simultaneously without the BS applying any scheduling algorithm or collecting channel state information. The BS efficiently decodes the transmissions with vanishing error probability using only O(K log N M) antennas, which implies order-optimal number of antennas.
Keywords:
Receiving antennas
Antennas
Transmitting antennas
Channel estimation
MIMO communication
Decoding
Electron tubes
Massive MIMO
multiple-access channel
group testing
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8.3
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1.2W
Citations:
3.6W
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