IEEE802.16e OFDMA物理层子载波分配机制的研究

Investigation on Subcarrier Allocation for IEEE802.16e OFDMA Physical Layer

介绍了IEEE802.16e标准中WirelessMAN-OFDMA物理层规范,对其中的几种子载波分配方法进行比较,重点分析了上、下行PUSC分布子载波分配方法。同时使用MATLAB软件搭建OFDMA物理层仿真平台,对PUSC的性能进行仿真分析,仿真结果表明采用PUSC进行子载波分配后,OFDMA系统性能得到了改善。

This paper presents the WirelessMAN-OFDMA physical layer in IEEE802.16e standard, compares several major subcarrier allocation methods, and mainly analyzes two methods: DL PUSC and UL PUSC. In order to investigate the performance of PUSC, a simulation platform for OFDMA physical-layer is built. Simulation results show that the performance of OFDMA system is greatly improved when PUSC is adopted.