SP-MAC: A Media Access Control Method Based on the Synchronization Phenomena of Coupled Oscillators over WLAN
SP-MAC: A Media Access Control Method Based on the Synchronization Phenomena of Coupled Oscillators over WLAN
复制标题
DOI：
10.1587/transinf.2015pap0004
复制
发表时间：
2015-12
期刊：
影响因子：
--
通讯作者：
Hiroyasu Obata;R. Hamamoto;C. Takano;K. Ishida
中科院分区：
文献类型：
--
作者：
Hiroyasu Obata;R. Hamamoto;C. Takano;K. Ishida
基于IEEE802.11标准的无线局域网（lan）通常采用载波感知多址避碰（CSMA/CA）技术进行媒体访问控制。然而，在CSMA/CA中，当无线终端数量增加时，由初始争用窗口（CW）得到的回退时间在无线终端之间趋于冲突。因此，经常会发生数据帧冲突，这有时会导致传输层协议的总吞吐量下降。在本研究中，为了提高总吞吐量，我们提出了一种新的基于耦合振荡器同步现象的媒体访问控制方法SP-MAC。此外，本研究表明，与原始的CSMA/CA方法相比，SP-MAC大大降低了数据帧碰撞概率，提高了总吞吐量。关键词：无线局域网，SP-MAC，耦合振荡器同步现象，Kuramoto模型，媒体访问控制
Wireless local area networks (LANs) based on the IEEE802.11 standard usually use carrier sense multiple access with collision avoidance (CSMA/CA) for media access control. However, in CSMA/CA, if the number of wireless terminals increases, the back-off time derived by the initial contention window (CW) tends to conflict among wireless terminals. Consequently, a data frame collision often occurs, which sometimes causes the degradation of the total throughput in the transport layer protocols. In this study, to improve the total throughput, we propose a new media access control method, SP-MAC, which is based on the synchronization phenomena of coupled oscillators. Moreover, this study shows that SP-MAC drastically decreases the data frame collision probability and improves the total throughput when compared with the original CSMA/CA method. key words: wireless LAN, SP-MAC, synchronization phenomena of coupled oscillators, Kuramoto model, media access control