Results 41 to 50 of about 3,656,389 (294)

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

Zero forcing irredundant sets [PDF]

open access: yesAustralas. J Comb.
Irredundance has been studied in the context of dominating sets, via the concept of private neighbor. Here irredundance of zero forcing sets is introduced via the concept of a private fort and the upper and lower zero forcing irrdedundance numbers $\mbox{ZIR}(G)$ and $\mbox{zir}(G)$ are defined.
Bryan Curtis   +2 more
openaire   +2 more sources

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

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

Automatic Modulation Classification for MIMO Systems via Deep Learning and Zero-Forcing Equalization

open access: yesIEEE Transactions on Vehicular Technology, 2020
Automatic modulation classification (AMC) is one of the most critical technologies for non-cooperative communication systems. Recently, deep learning (DL) based AMC (DL-AMC) methods have attracted significant attention due to their preferable performance.
Yu Wang   +8 more
semanticscholar   +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

A lower bound on the zero forcing number [PDF]

open access: yesDiscrete Applied Mathematics, 2018
In this note, we study a dynamic vertex coloring for a graph $G$. In particular, one starts with a certain set of vertices black, and all other vertices white. Then, at each time step, a black vertex with exactly one white neighbor forces its white neighbor to become black.
Randy Davila   +2 more
openaire   +4 more sources

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