计算机科学 ›› 2017, Vol. 44 ›› Issue (6): 102-107.doi: 10.11896/j.issn.1002-137X.2017.06.018
叶翔,章国安,吴敏
YE Xiang, ZHANG Guo-an and WU Min
摘要： 研究了协作通信对车载自组织网络(VANET)性能的影响。中继节点参与通信会提高单链路传输的可靠性,然而大多数研究忽略了采取中继节点会扩大通信干扰范围的影响,从而带来的额外干扰也会影响其他链路的通信。为此,通过构建一个菱形的中继节点选择区域来限制增大干扰区域的不利影响,进而提出一种新的评估协作通信性能的方法,并得到中断概率和网络吞吐量的数学表达式。数值分析和仿真结果表明,协作通信能够显著降低通信中断概率,但其对整个网络的吞吐量性能并不总是有效的,合理地设置中继选择区域大小能有效提高网络吞吐量。
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