Frequency-Domain Eigenbeam-SDM and Equalization for High Speed Data Transmissions
Frequency-Domain Eigenbeam-SDM and Equalization for High Speed Data Transmissions
复制标题
高速数据传输的频域特征波束-SDM 和均衡
DOI：
10.1109/vtcf.2006.333
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发表时间：
2006
期刊：
影响因子：
--
通讯作者：
F. Adachi
中科院分区：
文献类型：
--
作者：
Kazuyuki Ozaki;A. Nakajima;F. Adachi
在无线通信中，信道由许多具有不同时延的可解析路径组成，导致严重的频率选择性衰落信道。频域均衡（FDE）可以利用信道选择性，提高单载波（SC）传输的误码率（BER）性能。最近，多输入多输出（MIMO）复用由于在有限带宽下实现超高速数据传输而受到广泛关注。特征波束空分复用(E-SDM)被称为MIMO复用技术之一。在本文中，我们提出了用于 SC 传输的频域 E-SDM。在频域E-SDM中，在每个正交频率处构造用于并行传输不同数据的正交传输信道。在接收器处，FDE 用于抑制 ISI。在本文中，为了获得高频谱效率，在执行FDE之后应用基于等效信道增益的发射功率分配和自适应调制。通过计算机仿真评估了频域E-SDM在严重频率选择性瑞利衰落信道中的传输性能。
In wireless communications, the channel consists of many resolvable paths with different time delays, resulting in a severely frequency-selective fading channel. The frequency-domain equalization (FDE) can take advantage of the channel selectivity and improve the bit error rate (BER) performance of the single-carrier (SC) transmission. Recently, multi-input multi-output (MIMO) multiplexing is gaining much attention for achieving very high speed data transmissions under limited bandwidth. Eigenbeam space division multiplexing (E-SDM) is known as one of MIMO multiplexing techniques. In this paper, we propose frequency-domain E-SDM for SC transmission. In frequency-domain E-SDM, the orthogonal transmission channels to transmit different data in parallel are constructed at each orthogonal frequency. At a receiver, FDE is used to suppress the ISI. In this paper, for high spectrum efficiency, the transmit power allocation and the adaptive modulation based on the equivalent channel gains after performing FDE are applied. The transmission performance of the frequency-domain E-SDM in a severe frequency-selective Rayleigh fading channel is evaluated by computer simulation.
影响因子：
11.2
作者：
Falconer, D;Ariyavisitakul, SL;Eidson, B
通讯作者：
Eidson, B
DOI：
10.1109/35.714618
发表时间：
1998-09
期刊：
IEEE Commun. Mag.
影响因子：
--
作者：
F. Adachi;M. Sawahashi;H. Suda
通讯作者：
F. Adachi;M. Sawahashi;H. Suda