OFDM Multiple Antennas Cognitive Radio Relay CDMA Synchronization Channel Estimation Spectrum Sharing Interference Cancellation Resource Allocation Spectrum Sensing Neural Networks Full duplex Stochastic Geometry Equalizer Bi-Directional Feedback Energy Harvesting Heterogeneous Networks Femtocell Device-to-Device (D2D) Idle cells Cross-link interference FBMC Spectral efficiency Cell Search SINR mismatch problem NOMA Ultra-dense small cell networks HetNet interference management Dynamic TDD outage probability selection diversity achievable sum rate bursty traffic model Cognitive relay networks mode selection multi-spectral 5G Complexity Singular Vale Decomposition OQAM tabu-search Filtered OFDM TDD configuration flexible duplex Handoff GFDM Heterogeneous channel estimation capability self-interference cancellation in-band full-duplex system Channel estimation error coexistence CP-OFDM MU-MIMO automatic repeat request (ARQ) Two-way communications UWB full-duplex relay full-duplex cellular Simultaneous Sensing and Transmission Correlated MIMO transmission capacity (TC) sensing duration Bi-directional full-duplex Vehicle-to-Vehicle prototype filter pilot signal Coexistence scenarios resource size control Vehicle-to-vehicle communication link reliability interference to noise ratio eigen decomposition TS-W-OFDM Resource management Cooperative systems LTE-based V2V Aggregate interference time-frequency efficiency mixed numerology Windowing Reliability C-V2V Asynchronous Transmission Full-duplex Computation offloading Grant-free Transmission Preamble full-spreading NOMA massive connectivity Edge computing Multiple access MLP Deep learning Railway Mobility interference mitigation HST non-orthogonal multiple access
Status : Published 
Date : 2017-07 
Title : Latency of Cellular-based V2X: Perspectives on TTI-proportional-latency and TTI-independent-latency 
Authors : Kwonjong Lee, Joonki Kim, Yosub Park, Hanho Wang, and Daesik Hong 
Journal : IEEE Access 
Abstract : Vehicle-to-Everything (V2X) is a form of wireless communication that is extremely sensitive to latency, because the latency is directly related to driving safety. The V2X systems developed so far have been based on the LTE system. However, the conventional LTE system is not able to support the latency requirements of latency-aware V2X. Fortunately, the state-ofthe-art cellular technology standard includes development of latency reduction schemes such as shortened transmission time intervals (TTI) and self-contained subframes. This paper verifies and analyzes the latency of cellular-based V2X with shortened TTI, which is one of the most efficient latency reduction schemes. To verify the feasibility of V2X service, we divide the V2X latency into two types of latency, TTI-independent latency (IL) and TTI-proportional latency (PL). Moreover, using system-level simulations considering additional overhead from shortened TTI, we evaluate the latency of cellular-based V2X systems. Based on this feasibility verification, we then propose cellular-based V2X system design principles in terms of shortened TTI with only one OFDM symbol and while sustaining RRC connection. 
URL : http://ieeexplore.ieee.org/stamp/stamp.j...er=7990497 
Download : https://mirinae.yonsei.ac.kr/?module=fil...le_srl=179 

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List of Articles
No.
Status Datesort
5 [IEEE Access] Insik Jung, Hyunsoo Kim, Jinkyo Jung, Sooyong Choi, and Daesik Hong, "An Enhanced Tabu Search based Receiver for Full-spreading NOMA Systems", IEEE Access, Oct. 2019 Published  2019-10 
4 [IEEE Access] Haesoon Lee, Yosub Park, and Daesik Hong, "Resource Split Full Duplex to Mitigate Inter-cell Interference in Ultra-Dense Small Cell Networks", IEEE Access, Jun. 2018 Published  2018-06 
3 [IEEE Access] Yosub Park, and Daesik Hong, "Theoretical Analysis of Interference Effect from Idle Cells in Ultra-dense Small Cell Networks", IEEE Access, Apr. 2018 Published  2018-04 
2 [IEEE Access] Seokwon Lee, Seokjung Kim, Yosub Park, Sooyong Choi and Daesik Hong, "Effect of Unpredictable Interference on MU-MIMO Systems in HetNet", IEEE Access, Nov. 2017 Published  2017-11 
» [IEEE Access] Kwonjong Lee, Joonki Kim, Yosub Park, Hanho Wang, and Daesik Hong, "Latency of Cellular-based V2X: Perspectives on TTI-proportional-latency and TTI-independent-latency", IEEE Access, Jul. 2017 file Published  2017-07