Performance of IEEE 802.16 OFDMA Standard Systems in Airport Surface Area Channels

I. Sen, Beibei Wang, D. Matolak
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引用次数: 5

Abstract

Ever increasing demands for communication on airport surface areas have led to studies of new systems feasible for use in these environments. The IEEE 802.16e standard systems can be considered potential candidates for these areas because of their many attractive features, which include high data rate, mobility support, etc. In this paper, we evaluate the performance of an 802.16e system with the OFDMA air interface over non-stationary channel models developed for different airports. We first provide a brief introduction to the various non-stationary channel models. Next we provide a short overview of 802.16e and describe three potential channel estimation schemes. We then evaluate the performance of the 802.16e system over the proposed non-stationary channel models. We show that the proposed channel estimation methods allow good tradeoffs between channel estimation accuracy and computational complexity. Finally, we introduce a subcarrier based subcarrier based scheduling algorithm aimed to maximize the system throughput under proportional fairness, and evaluate its performance over the proposed non-stationary channel models.
IEEE 802.16 OFDMA标准系统在机场表面区域信道中的性能
对机场表面通信日益增长的需求促使人们研究在这些环境中可行的新系统。IEEE 802.16e标准系统可以被认为是这些领域的潜在候选者,因为它们具有许多吸引人的特性,包括高数据速率、移动性支持等。在本文中,我们在针对不同机场开发的非固定信道模型上评估了具有OFDMA空中接口的802.16e系统的性能。我们首先简要介绍了各种非平稳信道模型。接下来,我们将简要介绍802.16e,并描述三种可能的信道估计方案。然后,我们在所提出的非平稳信道模型上评估802.16e系统的性能。我们表明,所提出的信道估计方法允许信道估计精度和计算复杂性之间的良好权衡。最后,我们介绍了一种基于子载波的调度算法,以在比例公平下最大化系统吞吐量,并在提出的非平稳信道模型上评估了其性能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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