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79
Transmitter Optimization for Multiuser MIMO Systems
"... 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 r ..."
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receiver signal processing, e.g., [3–5]. Spatial multiplexing can significantly benefit from transmit precoding when the channel is known at the transmitter side in addition to the receiver side. In such cases, designing the appropriate precoding strategy has been studied under a variety of system
Multi-path Routing and Stream Scheduling with Spatial Multiplexing and Interference Cancellation in MIMO Networks
"... Abstract-In MIMO networks, there are two transmission strategies, SM (spatial multiplexing) and IC (interference cancellation). The use of SM and IC brings additional complexity for routing and transmission scheduling of the links. Almost all existing works on throughput optimization for MIMO syste ..."
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Abstract-In MIMO networks, there are two transmission strategies, SM (spatial multiplexing) and IC (interference cancellation). The use of SM and IC brings additional complexity for routing and transmission scheduling of the links. Almost all existing works on throughput optimization for MIMO
Degrees of freedom in wireless multiuser spatial multiplex systems with multiple antennas
- IEEE Transactions on Communications
, 2006
"... Abstract—This letter investigates the structure of the optimal spatial multiplex scheme in a multiuser multiantenna wireless fading environment. Based on a sum-capacity criterion, this letter shows that the optimal transmission strategy in an uplink or downlink channel with n antennas at the base-st ..."
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Cited by 16 (0 self)
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rate, but also has the potential effect of precluding simultaneous transmission by other users. Index Terms—Broadcast channel, multiple-access channel, multiple-input multiple-output (MIMO) system, multiuser diversity, spatial diversity, spatial multiplex. I.
SNR Estimation in Maximum Likelihood Decoded Spatial Multiplexing
, 909
"... Abstract—Link adaptation is a crucial part of many modern communications systems, allowing the system to adapt the transmission and reception strategies to changes in channel conditions. One of the fundamental components of the link adaptation mechanism is signal to noise ratio (SNR) estimation, mea ..."
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Abstract—Link adaptation is a crucial part of many modern communications systems, allowing the system to adapt the transmission and reception strategies to changes in channel conditions. One of the fundamental components of the link adaptation mechanism is signal to noise ratio (SNR) estimation
Combining Space-Time Block Codes and Multiplexing in Correlated MIMO Channels: An Antenna Assignment Strategy
"... Multiplexing and space-time coding are competing ways of extracting capacity out of MIMO wireless systems. We address the problem of finding an optimal combination of these approaches over a MIMO array when a priori knowledge about correlation is available at the transmitter. Our approach is in the ..."
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Multiplexing and space-time coding are competing ways of extracting capacity out of MIMO wireless systems. We address the problem of finding an optimal combination of these approaches over a MIMO array when a priori knowledge about correlation is available at the transmitter. Our approach
permission. Structured Codes in Information Theory: MIMO and Network Applications
"... All rights reserved. ..."
Optimal Decoding for Hard-Decision Forwarding Aided Cooperative Spatial Multiplexing Systems
"... Abstract—In this letter, the optimal decoding strategy for cooperative spatial multiplexing (CSM) aided systems is derived. In CSM systems, the multiple relay stations (RSs), which compose a virtual antenna array (VAA), independently decode the packets received from the mobile stations (MS) and forw ..."
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Cited by 1 (0 self)
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Abstract—In this letter, the optimal decoding strategy for cooperative spatial multiplexing (CSM) aided systems is derived. In CSM systems, the multiple relay stations (RSs), which compose a virtual antenna array (VAA), independently decode the packets received from the mobile stations (MS
Ruyet, ”A novel FBMC scheme for spatial multiplexing with maximum likelihood detection
- IEEE Inter. Symp. on Wireless Comm. Sys. (ISWCS) Conf
, 2010
"... Abstract—FBMC transmission system was proposed as an alternative approach to OFDM system since it has a higher spectral efficiency. One of the characteristics of FBMC is that the demodulated transmitted symbols are accompanied by interference terms caused by the neighboring transmitted data in time ..."
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Cited by 5 (5 self)
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and frequency domain. The presence of this interference is an issue for the Maximum Likelihood (ML) implementation when we consider a Spatial Multiplexing MIMO system. In this paper, we will propose a new FBMC scheme and transmission strategy in order to avoid this interference term. This proposed scheme
A New Two-Step Precoding Strategy for Closed-Loop MIMO Systems
- IEEE Trans. Commun
, 2009
"... Abstract—In this paper, we present a new precoding technique using rotation transformations for closed loop multiple-input multiple-output (MIMO) wireless systems, which does not require the singular value decomposition (SVD) operation of the channel transfer matrix and allows a simple maximum-likel ..."
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Cited by 1 (0 self)
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on the minimum Euclidean distance between the received signals and then the vector or-thogonalization is connected to the vector-norm maximization. In this paper, we focus on spatial multiplexing systems transmitting two independent data streams. Compared with the SVD based schemes, the proposed approach
Diversity-Multiplexing Tradeoff in Cooperative Wireless Systems
"... Abstract — We first examine a system with a single sourcedestination pair and two relays, each node with a single antenna, and explore whether this virtual multi-input multi-output (MIMO) system can mimic a physical MIMO in terms of diversity-multiplexing tradeoff (DMT). We show that even under the ..."
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the idealistic assumption of full-duplex relays and a clustered network, the relay system can never fully mimic a real MIMO DMT, it is multiplexing gain limited. The limitation comes from the fact that source and destination are connected to relays with finite capacity links. We provide communication strategies
Results 11 - 20
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79
