IEEE 802.11n MAC性能优化策略分析

An Analysis of the IEEE 802.11n MAC Performance Optimization Strategy

伴随着各类无线产品的快速发展,传统的无线局域网已越来越不能适应这些产品的要求。IEEE 802.11n是新一代无线局域网标准。它不仅在物理层使用了如MI MO-OFDM、40 MHz信道等先进的技术,而且在MAC层也做了很大的改进,大大提高了网络的传输性能。本文将以IEEE 802.11n草案2.0协议为背景,在全面分析该协议的基础之上重点研究MAC层的帧聚合、TXOP、Block ACK、PSMP等优化策略。

With the rapid development of wireless communication products, the traditional Wireless Local Area Network （WLAN） can not meet the demand. IEEE 802. 11n is the new generation standard of WLAN, which not only uses MIMO-OFDM, 40MHz in PHY, but also improves the Medium Access Control （MAC）. The capability has been enhanced to a large extent. Based on IEEE 802. 11n Draft 2. 0,we will study frame aggregation, TXOP, Block ACK,PSMP,and so on.