Adaptive channel status based access class barring scheme for traffic emergency communication
In high-density cellular vehicle-to-everything (C-V2X), effective massive access method of cluster communications is the basis to assure the performance index for different services and enhance the spectrum efficiency under limited resource.An improved access class barring (ACB) scheme was proposed...
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| Format: | Article |
| Language: | zho |
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Beijing Xintong Media Co., Ltd
2022-01-01
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| Series: | Dianxin kexue |
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| Online Access: | http://www.telecomsci.com/zh/article/doi/10.11959/j.issn.1000-0801.2022009/ |
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| author | Jiao WANG Gongan QIU Shibing ZHANG |
| author_facet | Jiao WANG Gongan QIU Shibing ZHANG |
| author_sort | Jiao WANG |
| collection | DOAJ |
| description | In high-density cellular vehicle-to-everything (C-V2X), effective massive access method of cluster communications is the basis to assure the performance index for different services and enhance the spectrum efficiency under limited resource.An improved access class barring (ACB) scheme was proposed using channel status information based on computing power of communication terminal in C-V2X.The base station estimated the communication density within its cover range, generated the ACB factor using the communication density, and broadcasted the ACB.According to signal to interference plus noise ratio (SINR) and ACB factor of the received broadcast signal, the vehicular communication terminal computed the access probability, and compared with ACB factor.When the access probability was more than the ACB factor, the terminal selected a preamble randomly from the preamble pool with the probability which equal to the access probability or one.The terminal transmited the selected preamble to the base station for finishing the access program.The simulation results show that the scheme proposed has 5%～20% advantage over S-Aloha and machine to machine opportunistic splitting algorithm (M2M-OSA) schemes in average access collision probability.It reduces the average access delay effectively. |
| format | Article |
| id | doaj-art-790496db0bdc41bfbdebfb16d04eec9e |
| institution | Kabale University |
| issn | 1000-0801 |
| language | zho |
| publishDate | 2022-01-01 |
| publisher | Beijing Xintong Media Co., Ltd |
| record_format | Article |
| series | Dianxin kexue |
| spelling | doaj-art-790496db0bdc41bfbdebfb16d04eec9e2025-01-15T03:26:34ZzhoBeijing Xintong Media Co., LtdDianxin kexue1000-08012022-01-01389510159808974Adaptive channel status based access class barring scheme for traffic emergency communicationJiao WANGGongan QIUShibing ZHANGIn high-density cellular vehicle-to-everything (C-V2X), effective massive access method of cluster communications is the basis to assure the performance index for different services and enhance the spectrum efficiency under limited resource.An improved access class barring (ACB) scheme was proposed using channel status information based on computing power of communication terminal in C-V2X.The base station estimated the communication density within its cover range, generated the ACB factor using the communication density, and broadcasted the ACB.According to signal to interference plus noise ratio (SINR) and ACB factor of the received broadcast signal, the vehicular communication terminal computed the access probability, and compared with ACB factor.When the access probability was more than the ACB factor, the terminal selected a preamble randomly from the preamble pool with the probability which equal to the access probability or one.The terminal transmited the selected preamble to the base station for finishing the access program.The simulation results show that the scheme proposed has 5%～20% advantage over S-Aloha and machine to machine opportunistic splitting algorithm (M2M-OSA) schemes in average access collision probability.It reduces the average access delay effectively.http://www.telecomsci.com/zh/article/doi/10.11959/j.issn.1000-0801.2022009/Internet of vehiclescluster communicationchannel status awarenessmassive access |
| spellingShingle | Jiao WANG Gongan QIU Shibing ZHANG Adaptive channel status based access class barring scheme for traffic emergency communication Dianxin kexue Internet of vehicles cluster communication channel status awareness massive access |
| title | Adaptive channel status based access class barring scheme for traffic emergency communication |
| title_full | Adaptive channel status based access class barring scheme for traffic emergency communication |
| title_fullStr | Adaptive channel status based access class barring scheme for traffic emergency communication |
| title_full_unstemmed | Adaptive channel status based access class barring scheme for traffic emergency communication |
| title_short | Adaptive channel status based access class barring scheme for traffic emergency communication |
| title_sort | adaptive channel status based access class barring scheme for traffic emergency communication |
| topic | Internet of vehicles cluster communication channel status awareness massive access |
| url | http://www.telecomsci.com/zh/article/doi/10.11959/j.issn.1000-0801.2022009/ |
| work_keys_str_mv | AT jiaowang adaptivechannelstatusbasedaccessclassbarringschemefortrafficemergencycommunication AT gonganqiu adaptivechannelstatusbasedaccessclassbarringschemefortrafficemergencycommunication AT shibingzhang adaptivechannelstatusbasedaccessclassbarringschemefortrafficemergencycommunication |