کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6890102 1445153 2018 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Triggered CCHI Multichannel MAC protocol for Vehicular Ad Hoc Networks
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر شبکه های کامپیوتری و ارتباطات
پیش نمایش صفحه اول مقاله
Triggered CCHI Multichannel MAC protocol for Vehicular Ad Hoc Networks
چکیده انگلیسی
This paper proposes a Triggered CCHI Multichannel MAC protocol for efficient safety message dissemination in Vehicular Ad Hoc Networks. The proposed protocol allows a vehicle to start control channel interval (CCHI) by terminating service channel interval (SCHI) whenever a safety message arrives during SCHI. It enhances the performance of VANET by reducing resource wastage and unwanted delay caused by fixed interval of CCHI and SCHI. Further, CCHI keeps on increasing until all safety messages are not transmitted. A virtual TDMA beaconing process is also proposed in this paper to ensure delivery of periodic status messages. Multichannel hidden terminal problem is also addressed using cluster member request and cluster head request. An analytical model is developed to evaluate the proposed protocol with respect to packet delivery ratio, throughput, safety message delay and packet loss ratio. Extensive simulation is carried out to validate the analytical model and to demonstrate the improvement in comparison to existing similar MAC protocols and IEEE802.11p.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Vehicular Communications - Volume 12, April 2018, Pages 14-22
نویسندگان
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