太赫兹科学与电子信息学报, 2018, 16 (2): 283, 网络出版: 2018-06-09  

一种基于TXOP传输机制的多信道多址接入协议

A multi-channel MAC protocol based on TXOP scheme
王静 *
作者单位
安康学院电子与信息工程学院, 陕西 安康 725099
摘要
多址接入协议对无线网络的性能有极大影响, 并已成为实现高效无线通信的关键因素。为了提升动态信道分配 (DCA)协议的信道资源利用率, 设计了一种基于传输机会 (TXOP)传输机制的多信道介质访问控制 (MAC)(T-DCA)协议。由于 T-DCA协议实现简单, 可适用于分布式无线网络, 如 Ad-Hoc以及无线局域网络( WLAN)等。最后, 通过搭建 NS-2网络仿真平台, 验证了 T-DCA协议的优越性。仿真结果表明, T-DCA协议有效抑制了协议的冲突概率, 提升了网络吞吐量并降低了平均分组时延。
Abstract
Medium Access Control(MAC) protocol has a great impact on the performance of wireless networks, and it has become a key factor to achieve efficient wireless communications.The Wireless Local Area Network(WLAN) and channel access scheme are firstly introduced, then the research of multi-channel MAC protocol is performed. A typical multi-channel MAC protocol based on common control channel is presented, which is denoted as Dynamic Channel Assignment(DCA) protocol. In order to improve the channel resource utilization of DCA protocol, a multi-channel MAC protocol based on Transmission Opportunity(TXOP) transmission mechanism is proposed, namely T-DCA, i.e., TXOP based DCA. Because the T-DCA protocol is simple for implementation, it can be utilized in distributed wireless networks, such as Ad-Hoc and WLANs. Finally, the superiority of T-DCA protocol is evaluated by extensive simulations that are deployed using NS-2 simulator. The simulation results show that the T-DCA protocol can not only effectively deduce the collision probability, but also improve the network throughput and reduce the average packet delay.

王静. 一种基于TXOP传输机制的多信道多址接入协议[J]. 太赫兹科学与电子信息学报, 2018, 16(2): 283. WANG Jing. A multi-channel MAC protocol based on TXOP scheme[J]. Journal of terahertz science and electronic information technology, 2018, 16(2): 283.

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!