调整MAC 802.11调整MAC 802.11以使用跨层交互优化MANET的性能
Adapting MAC 802.11 Adapting MAC 802.11 for Performance Optimization of MANET using Cross Layer Interaction
摘要：
在本研究中，我们研究移动自组网络的优化挑战和跨层技术，以提高其性能。我们提出了一种自适应重传限制算法的IEEE 802.11 MAC减少虚假链路故障和预测节点的移动性。我们实现了物理层和MAC层之间的跨层交互。MAC层利用物理层信息来区分假链路故障和真链路故障。MAC层基于来自物理层的相邻信号强度和发送器节点速度信息自适应地选择重传限制（短和长）。所提出的方法跟踪网络中每个节点的信号强度，并且在向相邻节点发送时，如果其接收到的信号强度高并且是最近接收到的，则自适应MAC坚持其重传尝试。因为存在邻居节点仍然在传输范围内并且可能由于除移动性之外的一些问题而不响应的高概率。在本文中，我们评估的MANET的性能，并显示我们的自适应MAC大大提高了它。使用网络模拟器NS-2的模拟。
英文摘要：
In this research, we study the optimization challenges of MANET and cross-layer technique to improve its performance. We propose an adaptive retransmission limits algorithm for IEEE 802.11 MAC to reduce the false link failures and predict the node mobility. We implemented cross layer interaction between physical and MAC layers. The MAC layer utilizes the physical layer information for differentiating false link failure from true link failure. The MAC layer adaptively selects a retransmission limit (short and long) based on the neighbour signal strength and sender node speed information from the physical layer. The proposed approach tracks the signal strength of each node in network and, while transmitting to a neighbour node, if it's received signal strength is high and is received recently then Adaptive MAC persists in its retransmission attempts. As there is high probability that neighbour node is still in transmission range and may be not responding due to some problems other then mobility. In this paper, we evaluate the performance of MANET and show that how our Adaptive MAC greatly improves it. The simulation is done using Network Simulator NS-2.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
