基于TDMA的远距离无线网络MAC层访问控制

TDMA-based MAC layer access control for long distance wireless networks

近年来,随着移动终端的普及,人们希望无线网络能够更加方便、更加高效。如今的无线网络致力于提供高效、公平以及服务质量等特性,而在远距离的无线网络环境中,这些特性却很难得到满足。提出控制终端的上行传输机制,将远距离的终端和近距离的终端同时传输,以提高基站的带宽利用率。主要解决了以下几个问题,首先,如何取得终端的距离;其次,如何调度各个终端的发送,使得带宽利用率提高。

With the popularity of mobile terminals in recent years, people expect more convenient and more efficient wireless networks. Today＇s wireless networks are committed to providing characteristics such as efficiency, fairness and quality of service. However, in the long distance wireless network environment, these requirements are difficult to meet. We propose an uplink transmission scheme of the control terminal, which can perform long distance transmission and short distance transmission at the same time to improve the bandwidth utilization of the base station. Our proposal mainly solves the following problems： （1） how to get the distance of the terminal; （2） how to schedule the transmission of each terminal to improve the bandwidth utilization rate.