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- Title
认知车载网中基于TDMA/CSMA的混合多信道MAC协议研究.
- Authors
金喜龙; 章国安; 叶翔; 成峰
- Abstract
Considering the laige effect of MAC protocol on network performance such as throughput, packet drop rate and transmission delay, this paper developed a new multichannel MAC algorithm CRTC-MAC based on the requirements of the CR-VANET and it combined the fixed TDMA and dynamic CSMA method. The algorithm applied TDMA method when it was in fixed time-slot allocation while it utilized CSMA method when it was in dynamic time-slot allocation. Then, this paper proposed a better architecture of TDMA and CSMA based on traditional protocol to adapt the new multiple access algorithm. By optimizing the frame structure, it could reduce the extra cost which is caused by redundant data. Performance analysis and simulation results show that CRTC-MAC show certain advantages in aforementioned performance indicators. This protocol has smaller collision probability between packet of nodes and these nodes can successfully obtain their corresponding slots in few frames, thus it can improve the network performance.
- Publication
Application Research of Computers / Jisuanji Yingyong Yanjiu, 2018, Vol 35, Issue 3, p874
- ISSN
1001-3695
- Publication type
Article
- DOI
10.3969/j.issn.1001-3695.2018.03.049