Results 11 to 20 of about 527,650 (162)

Capacity and Error Performance of Reduced-Rank Transmitter Multiuser Preprocessing Based on Minimum Power Distortionless Response [PDF]

open access: yes, 2008
In this contribution we first derive a transmitter multiuser preprocessing (TMP) scheme for a general multiuser multiple-input-multiple-output (MIMO) system based on the minimum power distortionless response (MPDR) criterion, which minimizes the power in
Yang, Lie-Liang, Lie-Liang Yang
core   +2 more sources

Soft Decoding Assisted Interference Cancellation in a Non-Binary LDPC Coded Fast Frequency Hopping Multiuser System Using Product Combining [PDF]

open access: yes, 2007
In this contribution, soft-input-soft-output (SISO) decoding aided successive interference cancellation (SIC) is considered in fast frequency hopping (FFH), M-ary frequency shift keying (MFSK) using product combining (PC), when operating in multiple ...
Ahmed, S, Guo, F, Yang, L-L, Hanzo, L
core   +2 more sources

Multiuser Detection For Asynchronous ARGOS Signals [PDF]

open access: yes, 2010
In this paper, we investigate the application of multiuser detection techniques to a Low Polar Orbit (LPO) mobile satellite used in the ARGOS system. These techniques are used to mitigate the multiple access interference in the uplink transmission of the
Calmettes, Thibaud   +4 more
core   +1 more source

Iterative Decoding and Soft Interference Cancellation in Fast Frequency Hopping Multiuser System Using Clipped Combining

open access: yes, 2007
Iterative decoding (ID) aided fast frequency hopping (FFH), M-ary frequency shift keying (MFSK) using clipped combining in multiple access (MA) channels is investigated. All users’ data are convolutionally encoded and the encoded bits are interleaved and
Ng, S.X.   +3 more
core   +2 more sources

Decision-Feedback Multiuser Detection in Multicell Multicarrier DS-CDMA Systems with/without BS Cooperation

open access: yes, 2013
—In this contribution, we investigate the signal detection in the multicarrier direct-sequence code-division multiple-access (DS-CDMA) systems employing both time (T)-domain and frequency (F)-domain spreading, which are referred to as the TF/MC DS-CDMA ...
Zhang, Youguang   +5 more
core   +2 more sources

Iterative MIMO Turbo Multiuser Detection and Equalization for STTrC-Coded Systems with Unknown Interference

open access: yesEURASIP Journal on Wireless Communications and Networking, 2004
Iterative multiuser detection in a single-carrier broadband multiple-input multiple-output (MIMO) system is studied in this paper. A minimum mean squared error (MMSE) low-complexity multiuser receiver is derived for space-division multiple-access (SDMA)
Veselinovic Nenad   +2 more
doaj   +2 more sources

Multiuser Transmit Precoding Design for Dimming Compatible Visible Light Communications

open access: yesApplied Sciences, 2019
In multiuser visible light communication (VLC) systems, many transmit precoding (TPC) techniques have been investigated to suppress multiuser interference.
Baolong Li   +5 more
doaj   +1 more source

Near-Optimum Iterative Multiuser Detection in Time-Frequency-Domain Spread Multicarrier DS-CDMA Systems [PDF]

open access: yes, 2010
In this contribution we propose and study a novel iterative time-frequency-domain (TF-domain) multiuser detector (MUD) for the multicarrier direct-sequence code-division multiple-access system employing both T-domain and F-domain spreading, which, for ...
Yang, Lie-Liang   +5 more
core   +2 more sources

LDPC encoding performances for fading suppression in MIMO-CDMA wireless networks

open access: yesEAI Endorsed Transactions on Mobile Communications and Applications, 2018
In multiuser wireless communication systems, signal recovery, even at low BER is a relevant factor for ensuring a safe and reliable communication. Efforts for interference minimization include multiple analysis of source coding/decoding techniques ...
Ioana Marcu   +3 more
doaj   +1 more source

Constrained Channel Decomposition-Based Hybrid Beamforming for mmWave Massive MIMO Systems

open access: yesIEEE Open Journal of the Communications Society, 2020
In this article, we propose a hybrid beamforming design for multiuser mmWave massive MIMO systems. We adopt a two-stage approach for designing the analog and digital beamforming separately. The analog beamforming design is based on a constrained low-rank
Guilherme Martignago Zilli, Wei-Ping Zhu
doaj   +1 more source

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