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首页> 外文期刊>IEICE transactions on information and systems >A Priority Control Method for Media Access Control Method SP-MAC to Improve Throughput of Bidirectional Flows
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A Priority Control Method for Media Access Control Method SP-MAC to Improve Throughput of Bidirectional Flows

机译：媒体访问控制方法SP-MAC的一种优先控制方法，用于提高双向流的吞吐量

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In IEEE802.11 Wireless Local Area Networks (WLANs), frame collisions occur drastically when the number of wireless terminals connecting to the same Access Point (AP) increases. It causes the decrease of the total throughput of all terminals. To solve this issue, the authors have proposed a new media access control (MAC) method, Synchronized Phase MAC (SP-MAC), based on the synchronization phenomena of coupled oscillators. We have addressed the network environment in which only uplink flows from the wireless terminal to an AP exist. However, it is necessary to take into consideration of the real network environment in which uplink and downlink flows are generated simultaneously. If many bidirectional data flows exist in the WLAN, the AP receives many frames from both uplink and downlink by collision avoidance of SP-MAC. As a result, the total throughput decreases by buffer overflow in the AP. In this paper, we propose a priority control method based on SP-MAC for avoiding the buffer overflow in the AP under the bidirectional environment. Also, we show that the proposed method has an effect for improving buffer overflow in the AP and total throughput by the simulation.
机译：在IEEE802.11无线局域网（WLAN）中，当连接到同一接入点（AP）的无线终端数量增加时，就会发生帧冲突。这导致所有终端的总吞吐量降低。为了解决这个问题，作者基于耦合振荡器的同步现象提出了一种新的媒体访问控制（MAC）方法，即同步相位MAC（SP-MAC）。我们已经解决了其中仅存在从无线终端到AP的上行链路流的网络环境。但是，必须考虑同时生成上行链路和下行链路流的实际网络环境。如果WLAN中存在许多双向数据流，则AP通过避免SP-MAC的冲突从上行链路和下行链路接收许多帧。结果，总吞吐量由于AP中的缓冲区溢出而降低。本文提出了一种基于SP-MAC的优先级控制方法，以避免双向环境下AP中的缓冲区溢出。此外，我们还表明，该方法具有通过仿真改善AP中缓冲区溢出和总吞吐量的效果。

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