Results 271 to 280 of about 639,489 (294)
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MIMO in HSDPA and Legacy-MIMO Co-Existence
2010 IEEE Global Telecommunications Conference GLOBECOM 2010, 2010Multiple Input Multiple Output (MIMO) transmission improves downlink spectral efficiency and is a key feature of Release 7 High Speed Downlink Packet Access (HSDPA). When the Node-B is configured in the MIMO mode with secondary common control pilot channel (S-CPICH), the power amplifiers (PAs) for the two transmit antennas are not balanced.
Jilei Hou +4 more
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Adaptive loading for MIMO and MIMO-OFDM channels
2006 IEEE 24th Convention of Electrical & Electronics Engineers in Israel, 2006Adaptive bit loading algorithms are proposed for MIMO and MIMO-OFDM systems, thus better exploiting space and frequency diversity. Constant power allocation is assumed over all subchannels while the bit error rate is unconstrained. An efficient bit loading algorithm, which maximizes system bit rate under target mean BER constraint is formulated for a ...
Erez Wineberger, Ofer Amrani
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From theory to practice: an overview of MIMO space-time coded wireless systems
IEEE J. Sel. Areas Commun., 2003This paper presents an overview of progress in the area of multiple input multiple output (MIMO) space-time coded wireless systems. After some background on the research leading to the discovery of the enormous potential of MIMO wireless links, we ...
D. Gesbert +4 more
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Capacity limits of MIMO channels
IEEE J. Sel. Areas Commun., 2003We provide an overview of the extensive results on the Shannon capacity of single-user and multiuser multiple-input multiple-output (MIMO) channels. Although enormous capacity gains have been predicted for such channels, these predictions are based on ...
A. Goldsmith +3 more
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ASTC-MIMO to ASTC-MIMO-OFDM System
2015In the first part of this chapter, we propose to analyze the capacity of a MIMO-OFDM system using the ASTC codes in Rayleigh frequency selective-channels.
Bannour Ahmed, Mohammad Matin
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Overlapped-MIMO Radar and MIMO Cellular System
2017In this chapter, we explore a collocated overlapped multiple-input multiple-output (Overlapped-MIMO) radar waveform design, which is combined with an algorithm to share spectrum through null space projection (NSP) for the coexistence of radar and communications system.
T. Charles Clancy +2 more
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Switching between MIMO‐TDMA and MIMO‐CDMA
Transactions on Emerging Telecommunications Technologies, 2012AbstractThe throughput analyses for MIMO‐TDMA (multiple‐input multiple‐output with time division multiple access) and MIMO‐CDMA (multiple‐input multiple‐output with code division multiple access) are performed. These analyses show that there is a crossover in the throughput for MIMO‐TDMA and MIMO‐CDMA.
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2013
Large MIMO systems, with tens to hundreds of antennas, are a promising emerging communication technology. This book provides a unique overview of this technology, covering the opportunities, engineering challenges, solutions and state of the art of large MIMO test beds. There is in-depth coverage of algorithms for large MIMO signal processing, based on
Ananthanarayanan Chockalingam +1 more
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Large MIMO systems, with tens to hundreds of antennas, are a promising emerging communication technology. This book provides a unique overview of this technology, covering the opportunities, engineering challenges, solutions and state of the art of large MIMO test beds. There is in-depth coverage of algorithms for large MIMO signal processing, based on
Ananthanarayanan Chockalingam +1 more
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2009
Transmit beamforming improves the performance of multiple-input multiple-output antenna system (MIMO) by exploiting channel state information (CSI) at the transmitter. Numerous MIMO beamforming schemes are proposed in open literature and standard bodies such as 3GPP, IEEE 802.11n and 802.16d/e.
Qinghua Li +2 more
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Transmit beamforming improves the performance of multiple-input multiple-output antenna system (MIMO) by exploiting channel state information (CSI) at the transmitter. Numerous MIMO beamforming schemes are proposed in open literature and standard bodies such as 3GPP, IEEE 802.11n and 802.16d/e.
Qinghua Li +2 more
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Zero-forcing methods for downlink spatial multiplexing in multiuser MIMO channels
IEEE Transactions on Signal Processing, 2004Q. Spencer, A. Swindlehurst, M. Haardt
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