Improvement of polling and scheduling scheme for real-time transmission with HCCA of IEEE 802.11p protocol

doi:10.1016/S1005-8885(13)60050-3

Acta Metallurgica Sinica(English letters) ›› 2013, Vol. 20 ›› Issue (3): 60-66.doi: 10.1016/S1005-8885(13)60050-3

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Improvement of polling and scheduling scheme for real-time transmission with HCCA of IEEE 802.11p protocol

1. School of Computer Science and Technology, Tianjin University, Tianjin 300072, China 2. School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore

Received:2012-11-28 Revised:2013-03-05 Online:2013-06-30 Published:2013-06-26
Contact: Maode Ma E-mail:emdma@ntu.edu.sg
Supported by:
This work was supported by the National Natural Science Foundation of China (61072063, NSFC-11-01-01).

Abstract

Abstract:

This paper addresses the issue of real-time data transmission in vehicles to roadside (V2R) environment by the hybrid coordination function (HCF) of controlled channel access (HCCA) specified by the IEEE 802.11p standard. HCCA is one of the medium access mechanisms in the IEEE 802.11 standard, and uses the polling scheme similar to the point coordination function (PCF) to provide reliable quality of service (QoS), which may cause resource overshooting and high time consuming. This paper tries to improve the performance of the HCCA polling scheme and designs new data transmission scheduling scheme. The simulation results of the proposal are compared with those of the standard strategy. Simulation results demonstrate that the improved HCCA has lower delay, loss rate, and higher throughput than those of the standard one.

Key words:

IEEE 802.11p, HCCA, V2R, polling, scheduling

ZHANG Bing, MA Mao-de , LIU Chun-feng, SHU Yan-tai. Improvement of polling and scheduling scheme for real-time transmission with HCCA of IEEE 802.11p protocol[J]. Acta Metallurgica Sinica(English letters), 2013, 20(3): 60-66.

References

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Improvement of polling and scheduling scheme for real-time transmission with HCCA of IEEE 802.11p protocol

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