A Distance-Aware Safety-Related Message Broadcasting Algorithm for Vehicular Networks
A new distance-aware broadcasting algorithm was proposed to enhance the propagation distance in the latency time of safety-related message broadcasting. The IEEE 802.11p standard states that if the medium is detected as idle, a station would defer its transmission within a backoff time to avoid coll...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Hindawi - SAGE Publishing
2014-02-01
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| Series: | International Journal of Distributed Sensor Networks |
| Online Access: | https://doi.org/10.1155/2014/139857 |
| _version_ | 1797710998071672832 |
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| author | Xiaohuan Li Bin-jie Hu Hongbin Chen Jin Ye |
| author_facet | Xiaohuan Li Bin-jie Hu Hongbin Chen Jin Ye |
| author_sort | Xiaohuan Li |
| collection | DOAJ |
| description | A new distance-aware broadcasting algorithm was proposed to enhance the propagation distance in the latency time of safety-related message broadcasting. The IEEE 802.11p standard states that if the medium is detected as idle, a station would defer its transmission within a backoff time to avoid collisions with other stations. The backoff times follow uniform distribution over [0, CW ]. In this way, fairness among all the stations can be guaranteed. However, propagation distance was ignored and in safety-related message broadcasting fairness is not the most important issue. In the proposed algorithm, the lengths of backoff times are generated from a nonuniform distribution. They are related with the distances between the source station and its forwarding stations. The farthest forwarding station has the highest probability to forward messages. Performance of the proposed algorithm is analyzed by using a 2D Markov chain. Analytical and simulation results demonstrate that the proposed algorithm can enhance the performance of safety-related message broadcasting in terms of propagation distance, which is reflected by the successful transmission probability. The proposed algorithm does not need additional waiting time, RTS/CTS, and ACK, therefore having better compatibility with the IEEE 802.11p standard than earlier distance-aware algorithms. |
| first_indexed | 2024-03-12T06:59:29Z |
| format | Article |
| id | doaj.art-de45d0389a9543eab07fea8e8fb736d9 |
| institution | Directory Open Access Journal |
| issn | 1550-1477 |
| language | English |
| last_indexed | 2024-03-12T06:59:29Z |
| publishDate | 2014-02-01 |
| publisher | Hindawi - SAGE Publishing |
| record_format | Article |
| series | International Journal of Distributed Sensor Networks |
| spelling | doaj.art-de45d0389a9543eab07fea8e8fb736d92023-09-02T23:49:13ZengHindawi - SAGE PublishingInternational Journal of Distributed Sensor Networks1550-14772014-02-011010.1155/2014/139857139857A Distance-Aware Safety-Related Message Broadcasting Algorithm for Vehicular NetworksXiaohuan Li0Bin-jie Hu1Hongbin Chen2Jin Ye3 Information Science Experiment Center of Guangxi Province, Guilin University of Electronic Technology, Guilin 541004, China School of Electronic and Information Engineering, South China University of Technology, Guangzhou 510641, China Key Laboratory of Cognitive Radio and Information Processing, Guilin University of Electronic Technology, Ministry of Education, Guilin 541004, China School of Computer, Electronics and Information, Guangxi University, Nanning 530004, ChinaA new distance-aware broadcasting algorithm was proposed to enhance the propagation distance in the latency time of safety-related message broadcasting. The IEEE 802.11p standard states that if the medium is detected as idle, a station would defer its transmission within a backoff time to avoid collisions with other stations. The backoff times follow uniform distribution over [0, CW ]. In this way, fairness among all the stations can be guaranteed. However, propagation distance was ignored and in safety-related message broadcasting fairness is not the most important issue. In the proposed algorithm, the lengths of backoff times are generated from a nonuniform distribution. They are related with the distances between the source station and its forwarding stations. The farthest forwarding station has the highest probability to forward messages. Performance of the proposed algorithm is analyzed by using a 2D Markov chain. Analytical and simulation results demonstrate that the proposed algorithm can enhance the performance of safety-related message broadcasting in terms of propagation distance, which is reflected by the successful transmission probability. The proposed algorithm does not need additional waiting time, RTS/CTS, and ACK, therefore having better compatibility with the IEEE 802.11p standard than earlier distance-aware algorithms.https://doi.org/10.1155/2014/139857 |
| spellingShingle | Xiaohuan Li Bin-jie Hu Hongbin Chen Jin Ye A Distance-Aware Safety-Related Message Broadcasting Algorithm for Vehicular Networks International Journal of Distributed Sensor Networks |
| title | A Distance-Aware Safety-Related Message Broadcasting Algorithm for Vehicular Networks |
| title_full | A Distance-Aware Safety-Related Message Broadcasting Algorithm for Vehicular Networks |
| title_fullStr | A Distance-Aware Safety-Related Message Broadcasting Algorithm for Vehicular Networks |
| title_full_unstemmed | A Distance-Aware Safety-Related Message Broadcasting Algorithm for Vehicular Networks |
| title_short | A Distance-Aware Safety-Related Message Broadcasting Algorithm for Vehicular Networks |
| title_sort | distance aware safety related message broadcasting algorithm for vehicular networks |
| url | https://doi.org/10.1155/2014/139857 |
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