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Interference Cancellation using Logic OR Operation in MIMO Receiver

Md. AbdulLatifSarker, Moon Ho Lee
2013 International Journal of Computer Applications  
In our system, we have used a threshold logic unit which is operated by logic OR with NOT operation in the MIMO receiver for interference cancellation.  ...  In this paper, we consider the interference cancellation using logic OR gate from the multiple input multiple output (MIMO) interference channel where each transmitter and receiver equipped with single  ...  SIR operation in MIMO receiver With OR operation in MIMO receiver assures that the signal HF has dimension k d and linearly independent of the interference subspace and we can define by subspace H  ... 
doi:10.5120/10644-5402 fatcat:b6zqyxtfvrgndgeyvzhlo444ou

Extensive Survey on MIMO Technology using V-BLAST Detection Technique

Sudhanshu KumarChourasia, Rashmi Pandey
2014 International Journal of Computer Applications  
A multi-antenna receiver decodes data streams consecutively, trade with inter-stream interference by means of cancelling and nulling; interference from before decoded streams is cancelled by subtraction  ...  We study the broad-spectrum MIMO system, the general V-BLAST structure, and the Successive Interference Cancellation (SIC) Zero-Forcing (ZF) detectors in this paper.  ...  Interference Suppression (Nulling): The concealment operation nulls out obstruction by anticipating the gained vector onto the invalid subspace (perpendicular subspace) of the subspace spread over by the  ... 
doi:10.5120/17182-7277 fatcat:oy2dzn77ujgblf6bu325wegidu

Blind channel estimation for multiple input multiple output uplink guard-band assisted code division multiple access systems with layered space frequency equalisation

S. Punnoose, X. Zhu, A.K. Nandi
2008 IET Communications  
interference cancellation. form of a cyclic prefix (CP) [4] or zero padding (ZP) [5] are used to eliminate inter-block interference (IBI).  ...  as in the subspace method.  ...  At the end of each stage, the interference from the already detected user(s) is cancelled from the received signals yielding modified received signals with less interference.  ... 
doi:10.1049/iet-com:20070014 fatcat:3ptptstu3fgfjgn6srnjetv6ty

Performance Evaluation for V-Blast MIMO Systems under Various Modulation Schemes Using Ricean Channel

Gurpreet Singh
2012 IOSR Journal of Engineering  
In this also we will consider a point to point MIMO communications with 'N' transmitting antennas and 'M' receiving antennas (M≥N).  ...  In this article we will compared a different detection techniques with different modulation techniques and finally we will concluded that Maximum Likelihood (V-BLAST ML) decoding technique using BPSK modulation  ...  Further this system is compared with different modulation technique and system gets better result in BPSK modulation and 16-QAM modulation technique gives worst result with different detection technique  ... 
doi:10.9790/3021-0281201210 fatcat:ykhlw2k4kngctllqp7gayphmfu

Adaptive RLS Beamforming for MIMO-OFDM using VBLAST

Shankar Gangaju, Sanjivan Satyal
2015 International Journal of Computer Applications  
This paper explains the BER performance of MIMO-OFDM system with and without using adaptive beamforming algorithms and both using V-BLAST as the detection scheme.  ...  The performance of OFDM can be improved further using concept of spatial diversity Multiple Input Multiple Output (MIMO).  ...  Successive Interference Cancellation (SIC) is incorporated with V-BLAST architecture for both ZF and MMSE detection algorithm so as to improve the performance of detection algorithm.  ... 
doi:10.5120/ijca2015905458 fatcat:72pv3gf7zrdd5md3sf2t54nnb4

Sum rate enhancement and interference alignment for MIMO channels

Sarmad SOHAIB, Faqir-Najam UI-HASSAN, Junaid AHMED
2017 Turkish Journal of Electrical Engineering and Computer Sciences  
The precoders are then further improved for sum rate enhancement by scaling with suitable weights to increase the signal power of the desired signal.  ...  In each iteration of the algorithm precoders and decoders are calculated to align interference in a reduced interference subspace.  ...  Consequently, the receiver can detect d data streams by projecting its received signal to the space orthogonal to the interference subspace as given in Eq. (3).  ... 
doi:10.3906/elk-1604-96 fatcat:5xprhrvp2vdt7gmgk7dstsevzu

Interference Cancellation in HetNet Uplink With and Without MU-CSIR: A Subspace-Based Approach

Najlah C P, sameer S. M.
2020 IET Communications  
cancel the cross-tier interference.  ...  The authors also propose a low complexity subspace method that works with the knowledge of MU-CSIR.  ...  Hence the effective noise associated with the desired user's signal detection ZF detector is (5) .  ... 
doi:10.1049/iet-com.2019.0726 fatcat:3togmfwo3vei7gtnz4wvg2qsda

Exploiting independence for co-channel interference cancellation and symbol detection in multiuser digital communications

V. Zarzoso
2003 Seventh International Symposium on Signal Processing and Its Applications, 2003. Proceedings.  
The particular structure of the MIMO model yields a simplified detection scheme with improved performance at a reduced computational cost.  ...  In the blind equalization of multi-input multi-output (MIMO) finite impulse response communication channels, co-channel interference (CCI) is typically cancelled by exploiting the properties of digital  ...  CONCLUSIONS We have considered the exploitation of the mutual statistical independence between the users' signals for CCI cancellation and data detection in the BIE of FIR-MIMO channels.  ... 
doi:10.1109/isspa.2003.1224874 dblp:conf/isspa/Zarzoso03 fatcat:jnhgldljtzaehlgf5r2rsnxcka

A new complexity reduction methods of V-BLAST MIMO system in a communication channel

Sunita Panda, Rosalin Samantaray, Pradyumna Ku. Mohapatra, R.N. Panda, Padma Sahu
2019 International Journal of Informatics and Communication Technology (IJ-ICT)  
This methods compare with traditional finding methods such as ZF, MMSE, SIC and ML.  ...  <span>To design most reliable wireless communication system we need an efficient method which can be proposed in this paper is V-BLAST technique which is most powerful tool in MIMO system.  ...  with Successive Interference Cancellation (SIC) [4] which results advanced diversity gains and enhance BER presentation.  ... 
doi:10.11591/ijict.v8i1.pp29-38 fatcat:bz5qnl652zdcfaf2oi7uihovtq

Multiuser MIMO Receiver Processing for Time-Varying Channels [chapter]

Charlotte Dumard, Joakim Jaldén, Thomas Zemen
2011 Wireless Communications Over Rapidly Time-Varying Channels  
and parallel interference cancelation [ZMWM06] .  ...  Due to the rapid time-variation of the MIMO channel, the computational complexity of conventional multi-user receivers, based on channel estimation, parallel interference cancelation, multi-user detection  ...  In Section 9.5, we adapt the parallel interference cancelation in user space such that it can be combined with the Krylov subspace method for data detection.  ... 
doi:10.1016/b978-0-12-374483-8.00008-x fatcat:bxbm5q5kcnfmpfgbkprpcrdecu

Terahertz-Band MIMO-NOMA: Adaptive Superposition Coding and Subspace Detection [article]

Hadi Sarieddeen, Asmaa Abdallah, Mohammad M. Mansour, Mohamed-Slim Alouini, Tareq Y. Al-Naffouri
2021 arXiv   pre-print
We show that successive interference cancellation is carried with minimal performance and complexity costs under spatial tuning.  ...  We consider the problem of efficient ultra-massive multiple-input multiple-output (UM-MIMO) data detection in terahertz (THz)-band non-orthogonal multiple access (NOMA) systems.  ...  Joint Clustering and Power Control Although NOMA settings result in intra-cluster interference (ICI), efficient user clustering enhances ICI cancellation in SIC at the receiver.  ... 
arXiv:2103.02348v1 fatcat:5lj5u7gvynctxg6mdnodcdefma

Fuzzy MIMO detector for MC-CDMA systems with carrier frequency offset over multipath fading channels

Juinn-Horng Deng, Shu-Min Liao
2012 EURASIP Journal on Wireless Communications and Networking  
The first stage of the receiver uses a novel MIMO receiver model with offset symbols to achieve a fuzzy CFO-constrained MOE detector that suppresses multiple access interference (MAI) and minimizes cancellation  ...  To suppress noise and to enhance signal reception after the fuzzy MOE detector, a signal subspace projection and minimum mean square error weight combiner is proposed to enhance signal-to-interference-plus-noise  ...  MOE detector suppresses interference and effectively detects desired signals.  ... 
doi:10.1186/1687-1499-2012-197 fatcat:hapm756pb5dkhihk7dvgfrgn3q

Terahertz-Band MIMO-NOMA: Adaptive Superposition Coding and Subspace Detection

Hadi Sarieddeen, Asmaa Abdallah, Mohammad M. Mansour, Mohamed-Slim Alouini, Tareq Y. Al-Naffouri
2021 IEEE Open Journal of the Communications Society  
Successive interference cancellation is shown to be carried with minimal performance and complexity costs under spatial tuning.  ...  The problem of efficient ultra-massive multipleinput multiple-output (UM-MIMO) data detection in terahertz (THz)-band non-orthogonal multiple access (NOMA) systems is considered.  ...  Joint Clustering and Power Control Although NOMA settings result in intra-cluster interference (ICI), efficient user clustering enhances ICI cancellation in SIC at the receiver.  ... 
doi:10.1109/ojcoms.2021.3131769 fatcat:oa4t24tf7jhwfo4swybooye6ai

D-BLAST OFDM with Channel Estimation

Jianxuan Du, Ye (Geoffrey) Li
2004 EURASIP Journal on Advances in Signal Processing  
Among the layerwise estimators, the subspace-tracking estimator provides a 0.8 dB gain for 10 −2 WER with 200 Hz Doppler frequency compared with the DFT-based estimator.  ...  However, for broadband wireless communications, channel is frequency-selective and orthogonal frequency division multiplexing (OFDM) has to be used with MIMO techniques to reduce system complexity.  ...  To decode each layer, channel parameters are used to cancel interference from detected signals and suppress interference from undetected signals to make the desired signal as "clean" as possible.  ... 
doi:10.1155/s1110865704311054 fatcat:wnizyikhbvcithyoj7b6lirjwi

Performance improvement of ZF-precoded MU-MIMO transmission by collaborative interference cancellation

Hidekazu Murata, Ryo Shinohara
2015 IEICE Communications Express  
We carried out transmission experiments in an indoor environment to test the performance of our precoded MU-MIMO system with collaborative interference cancellation.  ...  In this paper, we apply a collaborative interference cancellation scheme to a precoded MU-MIMO system.  ...  We employ received signal sharing among mobile stations [3, 4] in the proposed scheme in order to enhance its interference cancellation capability.  ... 
doi:10.1587/comex.4.155 fatcat:n2kdp2w3krgz7nzqbbmsznjsay
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