Achievable Rates and Training Overheads for a Measured LOS Massive MIMO Channel
(2018) In IEEE Wireless Communications Letters 7(4). p.594-597- Abstract
This paper presents achievable uplink (UL) sum-rate predictions for a measured line-of-sight (LOS) massive multiple-input, multiple-output (MIMO) (MMIMO) scenario and illustrates the trade-off between spatial multiplexing performance and channel de-coherence rate for an increasing number of base station (BS) antennas. In addition, an orthogonal frequency division multiplexing (OFDM) case study is formed which considers the 90% coherence time to evaluate the impact of MMIMO channel training overheads in high-speed LOS scenarios. It is shown that whilst 25% of the achievable zero-forcing (ZF) sum-rate is lost when the resounding interval is increased by a factor of 4, the OFDM training overheads for a 100-antenna MMIMO BS using an... (More)
This paper presents achievable uplink (UL) sum-rate predictions for a measured line-of-sight (LOS) massive multiple-input, multiple-output (MIMO) (MMIMO) scenario and illustrates the trade-off between spatial multiplexing performance and channel de-coherence rate for an increasing number of base station (BS) antennas. In addition, an orthogonal frequency division multiplexing (OFDM) case study is formed which considers the 90% coherence time to evaluate the impact of MMIMO channel training overheads in high-speed LOS scenarios. It is shown that whilst 25% of the achievable zero-forcing (ZF) sum-rate is lost when the resounding interval is increased by a factor of 4, the OFDM training overheads for a 100-antenna MMIMO BS using an LTE-like physical layer could be as low as 2% for a terminal speed of 90m/s.
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- author
- Harris, Paul ; Hasan, Wael Boukley ; Liu, Liang LU ; Malkowsky, Steffen LU ; Beach, Mark ; Armour, Simon ; Tufvesson, Fredrik LU and Edfors, Ove LU
- organization
- publishing date
- 2018-08
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Antennas, Coherence, Field Trials., Interference, LOS, Massive MIMO, Mobile communication, Mobility, OFDM, Signal to noise ratio, Testbed, Training
- in
- IEEE Wireless Communications Letters
- volume
- 7
- issue
- 4
- pages
- 594 - 597
- publisher
- IEEE - Institute of Electrical and Electronics Engineers Inc.
- external identifiers
-
- scopus:85041411280
- ISSN
- 2162-2337
- DOI
- 10.1109/LWC.2018.2799863
- language
- English
- LU publication?
- yes
- id
- ca1c65ad-0aad-401a-aed3-5368f21a5d15
- date added to LUP
- 2018-02-16 07:31:57
- date last changed
- 2024-01-29 11:32:39
@article{ca1c65ad-0aad-401a-aed3-5368f21a5d15, abstract = {{<p>This paper presents achievable uplink (UL) sum-rate predictions for a measured line-of-sight (LOS) massive multiple-input, multiple-output (MIMO) (MMIMO) scenario and illustrates the trade-off between spatial multiplexing performance and channel de-coherence rate for an increasing number of base station (BS) antennas. In addition, an orthogonal frequency division multiplexing (OFDM) case study is formed which considers the 90% coherence time to evaluate the impact of MMIMO channel training overheads in high-speed LOS scenarios. It is shown that whilst 25% of the achievable zero-forcing (ZF) sum-rate is lost when the resounding interval is increased by a factor of 4, the OFDM training overheads for a 100-antenna MMIMO BS using an LTE-like physical layer could be as low as 2% for a terminal speed of 90m/s.</p>}}, author = {{Harris, Paul and Hasan, Wael Boukley and Liu, Liang and Malkowsky, Steffen and Beach, Mark and Armour, Simon and Tufvesson, Fredrik and Edfors, Ove}}, issn = {{2162-2337}}, keywords = {{Antennas; Coherence; Field Trials.; Interference; LOS; Massive MIMO; Mobile communication; Mobility; OFDM; Signal to noise ratio; Testbed; Training}}, language = {{eng}}, number = {{4}}, pages = {{594--597}}, publisher = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}}, series = {{IEEE Wireless Communications Letters}}, title = {{Achievable Rates and Training Overheads for a Measured LOS Massive MIMO Channel}}, url = {{http://dx.doi.org/10.1109/LWC.2018.2799863}}, doi = {{10.1109/LWC.2018.2799863}}, volume = {{7}}, year = {{2018}}, }