Transmitter Layering for Multiuser MIMO Systems
نویسندگان
چکیده
منابع مشابه
Transmitter Layering for Multiuser MIMO Systems
A novel structure for multiple antenna transmissions utilizing space-time dispersion is proposed, where the original data stream is divided into K substreams which are modulated onto all available transmit antennas using stream-specific transmit signature sequences. In order to achieve this, the transmit antennas are partitioned into M groups of antennas, called partitions. The signals from the...
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Multiple transmit and receive antennas are a means to increase wireless capacity [1, 2]. Recently, there has been considerable research in exploiting the space dimension through transmit diversity, and spatial multiplexing which is used to transmit multiple data streams that can be separated using receiver signal processing, e.g., [3–5]. Spatial multiplexing can significantly benefit from trans...
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This paper develops the joint optimization of linear precoding and decoding for the downlink in multiuser multiple-input multiple-output (MIMO) systems. The system under investigation consists of a single transmitter (base station) with multiple antennas that communicates with several users, each with one or more receive antennas, possibly receiving multiple data streams. The goal is to jointly...
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The optimization of the transmitter precoder (steering vectors and power allocation) for a MIMO Broadcast Channel (MIMO-BC) subject to general linear constraints is considered. These include various types of system constraints such as sum power, per-antenna or per-group-of-antennas power constraints, and “forbidden interference direction” constraints. We consider the transmitter optimization pr...
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تخمین دقیق مشخصات کانال در سیستم های مخابراتی یک امر مهم محسوب می گردد. این امر به ویژه در کانال های بیسیم با خاصیت فرکانس گزینی و زمان گزینی شدید، چالش بزرگی است. مقالات متعدد پر از روش های مبتکرانه ای برای طراحی و آنالیز الگوریتم های تخمین کانال است که بیشتر آنها از روش های خاصی استفاده می کنند که یا دارای عملکرد خوب با پیچیدگی محاسباتی بالا هستند و یا با عملکرد نه چندان خوب پیچیدگی پایینی...
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ژورنال
عنوان ژورنال: EURASIP Journal on Wireless Communications and Networking
سال: 2008
ISSN: 1687-1499
DOI: 10.1155/2008/372078