Results 21 to 30 of about 448,626 (277)

Fractional weighted ZF equalizer: A novel approach for channel equalization in MIMO-OFDM system under impulse noise environment

open access: yesCommunications in Science and Technology, 2021
Impulse noise is the major factor degrading the performance of the wireless system, imposing the need for the impulse noise mitigation strategy. Mainly, in the multiple-input multiple-output (MIMO) and orthogonal frequency-division multiplexing (OFDM ...
S. P. Girija, Rameshwar Rao
doaj   +1 more source

Reliable of High Data Rate Using Spatial Multiplexing and Convolution Code [PDF]

open access: yesEngineering and Technology Journal, 2015
Spatial Multiplexing (SM) can be achieved higher transmission rate without allocating higher bandwidth or increasing transmit power, so it is wildly used recently to serve the extremely demand of mobile communications.
Eman A. Farhan   +2 more
doaj   +1 more source

Maximum Oriented Forcing Number for Complete Graphs

open access: yesTheory and Applications of Graphs, 2019
The \emph{maximum oriented $k$-forcing number} of a simple graph $G$, written $\MOF_k(G)$, is the maximum \emph{directed $k$-forcing number} among all orientations of $G$.
Yair Caro, Ryan Pepper
doaj   +1 more source

The Bipartite Zero Forcing Set for a Full Sign Pattern Matrix

open access: yesMathematics, 2020
For an m × n sign pattern P, we define a signed bipartite graph B ( U , V ) with one set of vertices U = { 1 , 2 , … , m } based on rows of P and the other set of vertices V = { 1 ′ , 2 ′ , … ,
Gu-Fang Mou   +2 more
doaj   +1 more source

On the zero forcing number of generalized Sierpinski graphs [PDF]

open access: yesTransactions on Combinatorics, 2019
In this article we study the Zero forcing number of Generalized Sierpi\'{n}ski graphs $S(G,t)$‎. ‎More precisely‎, ‎we obtain a general lower bound on the Zero forcing number of $S(G,t)$ and we show that this bound is tight‎.
Ebrahim Vatandoost   +2 more
doaj   +1 more source

On the Relationships between Zero Forcing Numbers and Certain Graph Coverings

open access: yesSpecial Matrices, 2014
The zero forcing number and the positive zero forcing number of a graph are two graph parameters that arise from two types of graph colourings. The zero forcing number is an upper bound on the minimum number of induced paths in the graph that cover all ...
Taklimi Fatemeh Alinaghipour   +2 more
doaj   +1 more source

Bounds for the Zero Forcing Number of Graphs with Large Girth

open access: yesTheory and Applications of Graphs, 2015
The zero-forcing number, Z(G) is an upper bound for the maximum nullity of all symmetric matrices with a sparsity pattern described by the graph. A simple lower bound is δ ≤ Z(G) where δ is the minimum degree.
Randy Davila, Franklin Kenter
doaj   +1 more source

On the Design of Coherent Zero-Forcing Receiver for the Flat Fading MIMO Multiple-Access Channels [PDF]

open access: yesJournal of Electrical and Computer Engineering Innovations, 2019
Background and Objectives: Design of low-complexity receiver for space-time block coded (STBC) transmission over multiple-input multiple-output (MIMO) multiple-access channels has been subject of interest over the years.
M. Sheikh-Hosseini
doaj   +1 more source

Maximum nullity and zero forcing of circulant graphs

open access: yesSpecial Matrices, 2020
The zero forcing number of a graph has been applied to communication complexity, electrical power grid monitoring, and some inverse eigenvalue problems.
Duong Linh   +4 more
doaj   +1 more source

A Modified Grouped Linear ZF Algorithm Using Different Modulation Schemes for MIMO Systems [PDF]

open access: yesEngineering and Technology Journal, 2012
A new algorithm for a group iterative linear Zero-Forcing (ZF) receiver formultiple-input multiple-output (MIMO) systems is proposed in this paper. Theproposed algorithm merges between the group linear ZF receiver and V-Blastalgorithms, where the signals
Ahmed Gh. Wadday   +2 more
doaj   +1 more source

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