Multi-channel media access control protocol with differential services in airborne network

被引：0
作者：
Liu W.-L. [1 ]
Zhang H.-Y. [1 ]
Zheng B. [1 ]
Gao W.-T. [1 ]
机构：
[1] Information and Navigation College, Air Force Engineering University, Xi'an
来源：
Zhejiang Daxue Xuebao (Gongxue Ban)/Journal of Zhejiang University (Engineering Science) | 2019年 / 53卷 / 01期
关键词：
Access threshold; Airborne network; Backoff; Busy-idle degree; Differential service; Multi-channel;
D O I：
10.3785/j.issn.1008-973X.2019.01.011
中图分类号：
学科分类号：
摘要：
A differential priority based multi-channel media access control protocol was proposed in order to guarantee the system capacity and strict demands of timeliness and reliability on the high priority traffic in airborne networks. Two different channel access strategies were used which are multi-channel random access and multi-channel busy-idle access for high and low priority traffic respectively. A backoff mechanism based on the channel loads was adopted to dynamically adjust the connection window according to the busy degree of channels. Then differential service can be effectively provided. The optimal channel load interval and the access threshold of the low priority traffic in different number of channels as well as all system performance expressions were derived by establishing the multi-channel busy-idle collision model, backoff model and combining with the QoS demand of high priority traffic. The simulation results show that the protocol can ensure the strict timeliness (<2 ms), reliability (>99%) of high priority traffic and system capacity (>10 Mbit/s). The performance was improved much by comparing with priority frequency hopping (PFH-MAC) and prioritized adaptive jitter based media access control (PAJ-MAC) protocols. © 2019, Zhejiang University Press. All right reserved.
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页码：99 / 106
页数：7
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