Abstract
In this paper, the concept of faster-than Nyquist (FTN) transmission is used as a non-orthogonal multiple access scheme to interlace sporadic traffic into a broadband service traffic so that radio resources can be efficiently shared by both traffics, beyond the Nyquist rate. We have extended the concept of a 2-dimensional faster- than Nyquist (2D-FTN) transmission where some time-frequency resources are offloaded (turned off) from a broadband transmission to a time- frequency- space 3DFTN system. A broadband user transmitting in multiple- input multiple-output (MIMO) mode turns-off some set of transmit antennas for few subcarriers, which will be allowed for sporadic traffic. Furthermore, we show that turning-off subcarriers with the ill- conditioned channel matrices reduces the performance penalty of FTN transmission. For example, we have have shown that turning-off 12.5% of subcarriers from broadband transmission of 256 OFDM-symbol block costs only 0.3dB transmit power per bit while allowing up to 64 single- carrier grant-free transmission over the offloaded subcarriers.
| Original language | English |
|---|---|
| Title of host publication | 2018 IEEE 87th Vehicular Technology Conference, VTC Spring 2018 - Proceedings |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 1-5 |
| Number of pages | 5 |
| Volume | 2018-June |
| ISBN (Electronic) | 9781538663554 |
| DOIs | |
| Publication status | Published - 2018 Jul 20 |
| Event | 87th IEEE Vehicular Technology Conference, VTC Spring 2018 - Porto, Portugal Duration: 2018 Jun 3 → 2018 Jun 6 |
Other
| Other | 87th IEEE Vehicular Technology Conference, VTC Spring 2018 |
|---|---|
| Country | Portugal |
| City | Porto |
| Period | 18/6/3 → 18/6/6 |
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Keywords
- Coexistence
- Faster-than-Nyquist
- Machine-type Communication
- MIMO
- NOMA
- OFDM
ASJC Scopus subject areas
- Computer Science Applications
- Electrical and Electronic Engineering
- Applied Mathematics
Cite this
FTN-based MIMO transmission as a NOMA scheme for efficient coexistence of broadband and sporadic traffics. / Abebe, Ameha T.; Kang, Chung Gu.
2018 IEEE 87th Vehicular Technology Conference, VTC Spring 2018 - Proceedings. Vol. 2018-June Institute of Electrical and Electronics Engineers Inc., 2018. p. 1-5.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - FTN-based MIMO transmission as a NOMA scheme for efficient coexistence of broadband and sporadic traffics
AU - Abebe, Ameha T.
AU - Kang, Chung Gu
PY - 2018/7/20
Y1 - 2018/7/20
N2 - In this paper, the concept of faster-than Nyquist (FTN) transmission is used as a non-orthogonal multiple access scheme to interlace sporadic traffic into a broadband service traffic so that radio resources can be efficiently shared by both traffics, beyond the Nyquist rate. We have extended the concept of a 2-dimensional faster- than Nyquist (2D-FTN) transmission where some time-frequency resources are offloaded (turned off) from a broadband transmission to a time- frequency- space 3DFTN system. A broadband user transmitting in multiple- input multiple-output (MIMO) mode turns-off some set of transmit antennas for few subcarriers, which will be allowed for sporadic traffic. Furthermore, we show that turning-off subcarriers with the ill- conditioned channel matrices reduces the performance penalty of FTN transmission. For example, we have have shown that turning-off 12.5% of subcarriers from broadband transmission of 256 OFDM-symbol block costs only 0.3dB transmit power per bit while allowing up to 64 single- carrier grant-free transmission over the offloaded subcarriers.
AB - In this paper, the concept of faster-than Nyquist (FTN) transmission is used as a non-orthogonal multiple access scheme to interlace sporadic traffic into a broadband service traffic so that radio resources can be efficiently shared by both traffics, beyond the Nyquist rate. We have extended the concept of a 2-dimensional faster- than Nyquist (2D-FTN) transmission where some time-frequency resources are offloaded (turned off) from a broadband transmission to a time- frequency- space 3DFTN system. A broadband user transmitting in multiple- input multiple-output (MIMO) mode turns-off some set of transmit antennas for few subcarriers, which will be allowed for sporadic traffic. Furthermore, we show that turning-off subcarriers with the ill- conditioned channel matrices reduces the performance penalty of FTN transmission. For example, we have have shown that turning-off 12.5% of subcarriers from broadband transmission of 256 OFDM-symbol block costs only 0.3dB transmit power per bit while allowing up to 64 single- carrier grant-free transmission over the offloaded subcarriers.
KW - Coexistence
KW - Faster-than-Nyquist
KW - Machine-type Communication
KW - MIMO
KW - NOMA
KW - OFDM
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UR - http://www.scopus.com/inward/citedby.url?scp=85050989392&partnerID=8YFLogxK
U2 - 10.1109/VTCSpring.2018.8417838
DO - 10.1109/VTCSpring.2018.8417838
M3 - Conference contribution
AN - SCOPUS:85050989392
VL - 2018-June
SP - 1
EP - 5
BT - 2018 IEEE 87th Vehicular Technology Conference, VTC Spring 2018 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
ER -