Abstract
In this paper, we analyze the impacts of timing offset (TO), carrier frequency offset (CFO), and phase noise in orthogonal frequency division multiplexing (OFDM) and generalized frequency division multiplexing (GFDM) waveforms. As TO can be classified into four cases depending on the direction of offset, we provide the analysis of signal-to-interference ratio (SIR) for each of the cases when phase noise and synchronization errors of the desired user occur in frequency selective channel. We also propose the receiver filter for GFDM systems that is optimized to maximize SIR with CFO in AWGN channel. Simulation results show that GFDM is more sensitive to CFO than OFDM. We also confirm that GFDM systems using proposed receiver filter are robust against CFO compared to conventional systems.
| Original language | English |
|---|---|
| Journal | IEEE Transactions on Wireless Communications |
| DOIs | |
| Publication status | Accepted/In press - 2017 Aug 22 |
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Keywords
- carrier frequency offset
- filter design
- Frequency division multiplexing
- GFDM
- OFDM
- OFDM
- Phase noise
- phase noise
- Robustness
- SIR
- Synchronization
- synchronization
- timing offset
- Wireless communication
ASJC Scopus subject areas
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering
Cite this
SIR Analysis of OFDM and GFDM Waveforms with Timing Offset, CFO and Phase Noise. / Lim, Byungju; Ko, Young-Chai.
In: IEEE Transactions on Wireless Communications, 22.08.2017.Research output: Contribution to journal › Article
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TY - JOUR
T1 - SIR Analysis of OFDM and GFDM Waveforms with Timing Offset, CFO and Phase Noise
AU - Lim, Byungju
AU - Ko, Young-Chai
PY - 2017/8/22
Y1 - 2017/8/22
N2 - In this paper, we analyze the impacts of timing offset (TO), carrier frequency offset (CFO), and phase noise in orthogonal frequency division multiplexing (OFDM) and generalized frequency division multiplexing (GFDM) waveforms. As TO can be classified into four cases depending on the direction of offset, we provide the analysis of signal-to-interference ratio (SIR) for each of the cases when phase noise and synchronization errors of the desired user occur in frequency selective channel. We also propose the receiver filter for GFDM systems that is optimized to maximize SIR with CFO in AWGN channel. Simulation results show that GFDM is more sensitive to CFO than OFDM. We also confirm that GFDM systems using proposed receiver filter are robust against CFO compared to conventional systems.
AB - In this paper, we analyze the impacts of timing offset (TO), carrier frequency offset (CFO), and phase noise in orthogonal frequency division multiplexing (OFDM) and generalized frequency division multiplexing (GFDM) waveforms. As TO can be classified into four cases depending on the direction of offset, we provide the analysis of signal-to-interference ratio (SIR) for each of the cases when phase noise and synchronization errors of the desired user occur in frequency selective channel. We also propose the receiver filter for GFDM systems that is optimized to maximize SIR with CFO in AWGN channel. Simulation results show that GFDM is more sensitive to CFO than OFDM. We also confirm that GFDM systems using proposed receiver filter are robust against CFO compared to conventional systems.
KW - carrier frequency offset
KW - filter design
KW - Frequency division multiplexing
KW - GFDM
KW - OFDM
KW - OFDM
KW - Phase noise
KW - phase noise
KW - Robustness
KW - SIR
KW - Synchronization
KW - synchronization
KW - timing offset
KW - Wireless communication
UR - http://www.scopus.com/inward/record.url?scp=85028516708&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85028516708&partnerID=8YFLogxK
U2 - 10.1109/TWC.2017.2736998
DO - 10.1109/TWC.2017.2736998
M3 - Article
JO - IEEE Transactions on Wireless Communications
JF - IEEE Transactions on Wireless Communications
SN - 1536-1276
ER -