60GHz超高速无线网络接入机制研究

Medium access mechanisms of 60 GHz ultra-high data-rate wireless networks

首先介绍了工作在60 GHz频段、支持1 Gbit/s以上数据速率的IEEE 802.15.3c标准和IEEE 802.11ad标准草案规定的无线接入机制的基本原理,然后对它们的特点和性能进行了详细的对比分析。研究结果显示:2种无线接入机制都采用了TDMA+CSMA/CA的混合机制,但各有所长;IEEE 802.11ad接入机制兼容性更好,能达到更高的数据速率,然而原理更复杂;IEEE 802.15.3c接入机制实现相对简单,同样也能达到Gbit/s级别的数据速率。最后,对全文进行总结并指出了未来的研究方向。

This paper first analyses the basic working principles of the wireless channel access mechanisms about the standard IEEE 802.15.3e and the draft standard IEEE 802.1lad which are all working at the 60 GHz band and supporting the 1 Gbit/s or higher data rates. Then, a comparative analysis about the wireless medium access mechanisms characteristics and performances of the standard IEEE 802.15.3c and the draft standard IEEE 802.11 ad is made at length. The research shows that： both IEEE 802.15.3e and IEEE 802. llad adopt the hybrid mechanisms： TDMA ＋ CSMA/CA; nevertheless, everyone has its own advantages. The access mechanisms of IEEE 802.11 ad have a better compatibility and can reach high- er data rate, but the principles of IEEE 802. llad are more complicated than IEEE 802. 15.3c. Meanwhile, the access mechanisms of IEEE 802.15.3e are simpler than IEEE 802. 11ad and the data rate of IEEE 802.15.3e can also reach Gbit/s. Finally, the summary and the direction of the future researches are given.