IEEE 802.16系统中基于链路质量度量的链路自适应算法分析

2008 IEEE Region 10 and the Third international Conference on Industrial and Information Systems Pub Date : 2008-12-01 DOI:10.1109/ICIINFS.2008.4798418

R. Sandanalakshmi, K. Manivannan, T. G. Palanivelu

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引用次数: 0

摘要

多天线与多载波码分多址(MC-CDMA)的结合是未来移动通信下行链路的有力候选。对这类系统的研究，在模拟真实传输的情况下，是朝着优化成果迈出的又一步。信道估计通过对信道进行表征来提高其性能。针对下链路多输入多输出(MIMO)信道的正交空时分组编码(STBC) MC-CDMA系统，提出了turbo辅助迭代信道估计(ICE)技术。在一个实际的室外MIMO信道模型中，在大数据速率范围内的模拟表明，涡轮辅助ICE优于ICE。

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An Analysis of Link Adaptation Algorithm based On Link Quality Metrics for IEEE 802.16 Systems

The combination of multiple antennas and multicarrier code division multiple access (MC-CDMA) is a strong candidate for the downlink of future mobile communications. The study of such systems, in scenarios that model real-life transmissions is an additional step towards an optimised achievement. Channel estimation is employed to improve its performance by characterising the channel. In this paper turbo aided iterative channel estimation (ICE) technique is proposed for orthogonal space-time block coded (STBC) MC-CDMA systems with multiple-input multiple-output (MIMO) channel in the downlink. Simulations with a realistic outdoor MIMO channel model, over a wide range of data rates shows that turbo aided ICE outperforms ICE.

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2008 IEEE Region 10 and the Third international Conference on Industrial and Information Systems

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