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arXiv 1507.07516cs.ITmath.IT
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下一代无线通信中基于媒体的调制技术研究进展

Media-Based Modulation for Next-Generation Wireless: A Survey and Some New Developments

Ehsan Seifi, Amir K. Khandani, Mehran Atamanesh

摘要:

基于媒体的调制(MBM)的思想是通过传输媒体的故意扰动将信息嵌入信道状态。本文涵盖了广泛的主题,关于MBM,扩大其好处和审查相关的挑战,暗示潜在的未来研究方向。本文首先讨论MBM与基于源的调制的不同之处;我们强调了MBM要解决的传统多输入多输出(MIMO)系统的关键缺点,包括深度衰落和MIMO分集复用权衡的问题。文章进一步解释了MBM如何与其他指数调制协调工作,并通过更紧凑的发射机提供类似的优势来改进它们。数值结果(模拟和分析)提供支持所讨论的好处的索赔。数值结果的重点包括:1)与传统MIMO系统的中断比较; 2)与其他最先进的调制方案(例如广义空间调制)的比较;以及3)在$\mathsf{E_b/N_0} \simeq -3.5$ dB的\say{energy per bit to noise power spectral density ratio}下以出色的$\mathsf{SER} \simeq 10^{-5}$符号出错率在单次传输中发送32比特信息的性能示例。文章继续与方法来解决接收机的训练和解码的问题,为大星座集。一些其他的研究问题,如脉冲整形,以限制频谱增长,由于随时间变化的性质MBM和MBM分集阶的前向纠错码的效果进行了讨论。最后,提出了一种射频收发器结构,以产生用于嵌入信息的独立传播路径。收发器结构的制造和测试显示模拟和测量之间的密切协议。

英文摘要:

The idea of media-based modulation (MBM) is to embed information in the channel states via intentional perturbations of the transmission media. This article covers a broad range of topics regarding MBM, expanding on its benefits and reviewing relevant challenges, alluding to potential future research directions. The article starts by arguing how MBM differs from a source-based modulation; we highlight the key shortcomings in a legacy multiple-input multiple-output (MIMO) system that MBM sets out to address, including the issue of deep fades and MIMO diversity-multiplexing trade-off. The article further explains how MBM works in harmony with other index modulations and improves upon them by providing similar advantages with a more compact transmitter. Numerical results (simulation and analytical) are provided to support the claims on the discussed benefits. The highlights of numerical results include: 1) outage comparison with legacy MIMO systems; 2) comparisons with other state-of-the-art modulation schemes such as generalized spatial modulation; and 3) performance example of sending 32 bits of information in a single transmission with an excellent symbol error rate of $\mathsf{SER} \simeq 10^{-5}$ at \say{energy per bit to noise power spectral density ratio} of $\mathsf{E_b/N_0} \simeq -3.5$ dB. The article continues with methods to address the issues of receiver training and decoding for large constellation sets. A number of other research questions, such as pulse shaping to limit spectral growth due to the time-varying nature of MBM and the effect of forward error correcting codes on MBM diversity order are discussed. Finally, an RF transceiver structure is presented to generate independent propagation paths for embedding information. Fabrication and testing of the transceiver structure show close agreement between simulation and measurement.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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