Modeling and Analysis of the Downlink Local Delay in MEC-Based VANETs
Modeling and Analysis of the Downlink Local Delay in MEC-Based VANETs
复制标题
基于 MEC 的 VANET 下行链路本地延迟建模与分析
DOI:
10.1109/tvt.2020.2984835
复制
发表时间:
2020-06
影响因子:
6.8
通讯作者:
Zheng Jun
中科院分区:
文献类型:
--
作者:
Wu Yuying;Zheng Jun
Mobile edge computing (MEC) is a promising computing paradigm for improving the quality of service (QoS) of a vehicular ad hoc network (VANET). The local delay is one of the major components in the delay for a node to transmit a data packet to another node. This paper studies the modeling and analysis of the downlink local delay in an MEC-based highway road scenario. A theoretical model is built based on stochastic geometry for analyzing the average downlink local delay for a vehicle driving on a highway road to receive a data packet from an edge node along the highway road. In deriving the model, the spatial distributions of vehicle nodes and edge nodes are respectively modeled as an independent one-dimensional (1-D) homogeneous Poisson point process (PPP). A nearest-transmitter model is used to determine the edge node for transmitting a computing result to the corresponding service requesting vehicle node. Moreover, a carrier sense multiple access (CSMA) mechanism is considered for channel access. The derived theoretical model is validated through simulation results and the impacts of major parameters on the average downlink local delay are investigated based on the derived model. The built model provides an insight into the deployment of edge nodes in order to reduce the downlink local delay and provide timely network services.
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影响因子:
8.3
作者:
Yuanjie Wang;M. Haenggi;Z. Tan
通讯作者:
Yuanjie Wang;M. Haenggi;Z. Tan
影响因子:
8.3
作者:
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通讯作者:
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影响因子:
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作者:
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DOI:
10.1561/1300000026
发表时间:
2009-01-01
期刊:
FOUNDATIONS AND TRENDS IN NETWORKING
影响因子:
--
作者:
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通讯作者:
Blaszczyszyn, Bartlomiej
影响因子:
11.2
作者:
Zhang, Ke;Leng, Supeng;Zhang, Yan
通讯作者:
Zhang, Yan