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首页> 外文会议>2010 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting (BMSB 2010) >A layered spatial modulation technique for MIMO-OFDM systems
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A layered spatial modulation technique for MIMO-OFDM systems

机译：用于MIMO-OFDM系统的分层空间调制技术

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摘要

The spatial modulation (SM) divides input data into antenna indices and data symbols, and transmits data symbols via the specific antenna chosen by an antenna index. The performance of SM is affected by the worse one between the detection performances of antenna index and data symbol. In this paper, power efficient SM based transmitter and receiver architectures are proposed in order to provide different protection levels according to the important level of data, and also to improve the receive performance as compared with the conventional SM. To provide unequal error protection (UEP) at the transmitter, the antenna index and data symbol are separately encoded by two FEC codes. At the receiver, the two-stage detection and decoding based on a novel criteria is applied in order to enhance the bit error rate (BER) performance. Simulation results show that the proposed scheme outperforms the conventional SM over frequency selective channels.
机译：空间调制（SM）将输入数据分为天线索引和数据符号，并通过由天线索引选择的特定天线发送数据符号。天线索引和数据符号的检测性能之间较差的一种会影响SM的性能。在本文中，提出了基于功率高效SM的发送器和接收器体系结构，以便根据重要数据级别提供不同的保护级别，并且与常规SM相比，还可以提高接收性能。为了在发射机处提供不均等的错误保护（UEP），天线索引和数据符号分别由两个FEC代码编码。在接收器处，基于新标准应用了两阶段检测和解码，以增强误码率（BER）性能。仿真结果表明，该方案在频率选择信道上优于传统的SM。

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