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An enhanced MAC protocol to prioritize channel assignment for safety message broadcast in VANET | ||
| International Journal of Nonlinear Analysis and Applications | ||
| دوره 12، Special Issue، اسفند 2021، صفحه 1845-1854 اصل مقاله (509.08 K) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22075/ijnaa.2021.5895 | ||
| نویسندگان | ||
| K.V. Anusuya* ؛ M. Sakthi Priya | ||
| ECE PSG College of Technology Coimbatore, India | ||
| تاریخ دریافت: 18 مرداد 1400، تاریخ پذیرش: 11 آبان 1400 | ||
| چکیده | ||
| Spectrum shortage in Vehicular Communications has become an area of concern due to the diverse nature of applications served. Though the allocated 5.9GHz Dedicated Short Range Communication (DSRC) spectrum for vehicular communication is inefficiently utilized, the problem of congestion creates an impression that there is always a scarcity in the spectrum. The criticality of the issue becomes high when a safety message is unable to access the channel or is dropped due to congestion. This paper proposes an approach to prioritize channel access to safety messages through dynamic spectrum sharing. In case, when a safety message finds all the DSRC sub-channels occupied, then any one of the ongoing non-safety messages is switched over to the adjacent 5.8GHz ISM/UNII-3 band allowing the former to access the DSRC band. The proposed approach shows an increased QoS and reduced channel access delay for safety messages compared to the previous works. | ||
| کلیدواژه‌ها | ||
| Channel delay؛ DSRC؛ Safety message؛ Spectrum sharing؛ VANET | ||
| مراجع | ||
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[1] S. Chung, Joon Yoo and Ch. Kim, A cognitive MAC for VANET based on the WAVE systems, 11th ICACT (2009) pp. 154–158. [2] FCC, Federal Communications Commission, News Release, October 1999. [3] R. Ferus, O. Salient, G. Baldini and L. Goratti, Public safety communications: enhancement through cognitive radio and spectrum sharing principles, IEEE Veh. Technol. Mag. 7(2) (2012) 54–61. [4] N. Gupta, A. Prakash and R. Tripathi, Medium access control protocols for safety applications in the vehicular ad-hoc network: a classification and comprehensive survey, Veh. Commun. 2(4) (2015) 223–237. [5] Ch. Han, M. Dianati and R. Tafazolli, A novel distributed asynchronous multichannel MAC scheme for large-scale vehicular ad hoc networks, IEEE Trans. Veh. Technol. 61(7) (2012) 3125–3138. [6] J. Sahoo, E. Hsiao-Kuang Wu and P. Kumar Sahu, Congestion-controlled-coordinator-based MAC for safetycritical message transmission in VANETs, IEEE Trans. Intell. Transp. Syst. 14(3) (2013) 1423–1437. [7] L. Shi and K.W. Sung, Spectrum requirement for vehicle-to-vehicle communication for traffic safety, IEEE 79th Vehicular Technol. Conf. Korea. 2014, pp. 1–5. [8] A. Vaibhav, D. Shukla, S. Das, S. Sahana and P. Johri, Security challenges, authentication, application and trust models for vehicular Ad Hoc network- a survey, Int. J. Wir. Mic. Tec. 7(3) (2017) 36–48. [9] X. Zhang, H. Su and H. Chen, Cluster-based multi-channel communications protocols in-vehicle ad hoc networks, IEEE Wirel. Commun. 13(5) (2006) 1536–1264. | ||
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