Latency of Cellular-Based V2X: Perspectives on TTI-Proportional Latency and TTI-Independent Latency
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 laten...
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| Veröffentlicht in: | IEEE access 2017-01, Vol.5, p.15800-15809 |
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| creator | Lee, Kwonjong Kim, Joonki Park, Yosub Wang, Hanho Hong, Daesik |
| description | 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-of-the-art cellular technology standard includes the development of latency reduction schemes, such as shortened transmission time intervals (TTI) and selfcontained 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 and TTI-proportional latency. 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 cellularbased V2X system design principles in terms of shortened TTI with only one OFDM symbol and while sustaining radio resource control connection. |
| doi_str_mv | 10.1109/ACCESS.2017.2731777 |
| format | Article |
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Based on this feasibility verification, we then propose cellularbased V2X system design principles in terms of shortened TTI with only one OFDM symbol and while sustaining radio resource control connection.</description><identifier>ISSN: 2169-3536</identifier><identifier>EISSN: 2169-3536</identifier><identifier>DOI: 10.1109/ACCESS.2017.2731777</identifier><identifier>CODEN: IAECCG</identifier><language>eng</language><publisher>Piscataway: IEEE</publisher><subject>3GPP ; Automobiles ; Cellular networks ; Data communication ; Feasibility ; latency ; Long Term Evolution ; Orthogonal Frequency Division Multiplexing ; Reduction ; Roads ; Safety ; shortened TTI ; system analysis and design ; Systems design ; Vehicle safety ; vehicular and wireless technologies ; Wireless communication ; Wireless communications</subject><ispartof>IEEE access, 2017-01, Vol.5, p.15800-15809</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2017</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c408t-380f8ae713c051746f62d93d448f10490dab27703f817be1738173ed8230116a3</citedby><cites>FETCH-LOGICAL-c408t-380f8ae713c051746f62d93d448f10490dab27703f817be1738173ed8230116a3</cites><orcidid>0000-0002-4694-2963 ; 0000-0002-1078-1205</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/7990497$$EHTML$$P50$$Gieee$$Hfree_for_read</linktohtml><link.rule.ids>314,776,780,860,2096,27610,27901,27902,54908</link.rule.ids></links><search><creatorcontrib>Lee, Kwonjong</creatorcontrib><creatorcontrib>Kim, Joonki</creatorcontrib><creatorcontrib>Park, Yosub</creatorcontrib><creatorcontrib>Wang, Hanho</creatorcontrib><creatorcontrib>Hong, Daesik</creatorcontrib><title>Latency of Cellular-Based V2X: Perspectives on TTI-Proportional Latency and TTI-Independent Latency</title><title>IEEE access</title><addtitle>Access</addtitle><description>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-of-the-art cellular technology standard includes the development of latency reduction schemes, such as shortened transmission time intervals (TTI) and selfcontained 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 and TTI-proportional latency. 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 cellularbased V2X system design principles in terms of shortened TTI with only one OFDM symbol and while sustaining radio resource control connection.</description><subject>3GPP</subject><subject>Automobiles</subject><subject>Cellular networks</subject><subject>Data communication</subject><subject>Feasibility</subject><subject>latency</subject><subject>Long Term Evolution</subject><subject>Orthogonal Frequency Division Multiplexing</subject><subject>Reduction</subject><subject>Roads</subject><subject>Safety</subject><subject>shortened TTI</subject><subject>system analysis and design</subject><subject>Systems design</subject><subject>Vehicle safety</subject><subject>vehicular and wireless technologies</subject><subject>Wireless communication</subject><subject>Wireless communications</subject><issn>2169-3536</issn><issn>2169-3536</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><sourceid>ESBDL</sourceid><sourceid>RIE</sourceid><sourceid>DOA</sourceid><recordid>eNpNUU1rHDEMHUoDDUl-QS4DPc_WX2PZvaVDPhYWEsim9Ga8tlxmmY6n9mwg_z5OJgnRQRKS3pPEq6pzSlaUEv3jousu7-9XjFBYMeAUAL5Ux4xK3fCWy6-f8m_VWc57UkyVUgvHldvYGUf3VMdQdzgMh8Gm5pfN6Ovf7M_P-g5TntDN_SPmOo71drtu7lKcYpr7ONqhfsfb0b8216PHCYsb5_feaXUU7JDx7C2eVA9Xl9vuptncXq-7i03jBFFzwxUJyiJQ7khLQcggmdfcC6ECJUITb3cMgPCgKOyQAi-Ro1eME0ql5SfVeuH10e7NlPp_Nj2ZaHvzWojpr7HlbDegYVpxkJIrT4gIge3AssC0lA6FBOIK1_eFa0rx_wHzbPbxkMrD2TDRtlq0oKBM8WXKpZhzwvCxlRLzIo5ZxDEv4pg3cQrqfEH1iPiBAK3Lk8CfAQfdh_0</recordid><startdate>20170101</startdate><enddate>20170101</enddate><creator>Lee, Kwonjong</creator><creator>Kim, Joonki</creator><creator>Park, Yosub</creator><creator>Wang, Hanho</creator><creator>Hong, Daesik</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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| subjects | 3GPP Automobiles Cellular networks Data communication Feasibility latency Long Term Evolution Orthogonal Frequency Division Multiplexing Reduction Roads Safety shortened TTI system analysis and design Systems design Vehicle safety vehicular and wireless technologies Wireless communication Wireless communications |
| title | Latency of Cellular-Based V2X: Perspectives on TTI-Proportional Latency and TTI-Independent Latency |
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