Généralisation des précodeurs MIMO basés sur la distance euclidienne minimale. (Generalized minimum Euclidean distance based precoders for MIMO spatial multiplexing systems)
نویسنده
چکیده
منابع مشابه
Optimal Precoder for MIMO Schemes in Indoor Wireless VLC Systems
In multiple-input multiple-output (MIMO) indoor visible light communication (VLC) systems, channel gains are highly correlated. As a result, the bit error rate (BER) of the system is degraded. To improve the BER performance of the system, we propose two precoders, namely, an optimal precoder and a diagonal precoder for MIMO schemes in VLC systems with Nt light emitting diodes (LED) and Nr photo...
متن کاملDiversity Versus Multiplexing in Narrowband MIMO Channels: A Tradeoff Based on Euclidean Distance
Multiple-input multiple-output (MIMO) communication systems use antenna arrays at both the transmitter and the receiver to offer substantial benefits in terms of rate and reliability. Two standard approaches for communicating in MIMO systems are spatial multiplexing and transmit diversity. Multiplexing sends independent information streams across the transmit antennas to maximize rate while tra...
متن کاملPerformance of Imaging Receivers using Convex Lens in Indoor MIMO VLC Systems
In multiple-input multiple-output (MIMO) indoor visible light communication (VLC) systems that employ nonimaging receivers, the bit error performance is degraded due to high spatial correlation. Imaging receivers can mitigate this degradation by concentrating the light energy, thereby reducing the correlation among the elements in the channel matrix. In this paper, we investigate the performanc...
متن کاملEfficient Scalar Quantization for MIMO Spatial Multiplexing Receivers
The maximum likelihood detection of multiple input multiple output (MIMO) spatial multiplexing systems is strongly limited by its complexity. We propose that a quantized version of this problem permits the multiplications involved in the numerous calculations of Euclidean distances to be replaced by the use of a small look-up table storing all the exact possible distance components in each dime...
متن کاملLattice Coding and Decoding Achieve the Optimal Diversity-vs-Multiplexing Tradeoff of MIMO Channels
This paper considers communication over coherent multiple-input multiple-output (MIMO) flat fading channels where the channel is only known at the receiver. For this setting, we introduce the class of LAttice Space-Time (LAST) codes. We show that these codes achieve the optimal diversity-vs-multiplexing tradeoff defined by Zheng and Tse under generalized minimum Euclidean distance lattice decod...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2012