Results 21 to 30 of about 473,326 (299)
Frequency assignment problem with net filter discrimination constraints [PDF]
Journal of Communications and Networks, 2017 Managing radio spectrum resources is a crucial issue. The frequency assignment problem (FAP) basically aims to allocate, in an efficient manner, limited number of frequencies to communication links. Geographically close links, however, cause interference, which complicates the assignment, imposing frequency separation constraints.
Yilmaz, H. Birkan +5 more
openaire +2 more sources
Frequency assignment in a SDMA satellite communication system with beam decentring feature [PDF]
, 2013 International audienceIn satellite communication, Spatial Division Multiple Access (SDMA) has become one of the most promising techniques that can accommodate continuing increase in the number of users and traffic demands.
Christian Artigues +7 more
core +5 more sources
A Useful Metaheuristic for Dynamic Channel Assignment in Mobile Cellular Systems
International Journal of Interactive Multimedia and Artificial Intelligence, 2012 The prime objective of a Channel Assignment Problem (CAP) is to assign appropriate number of required channels to each cell in a way to achieve both efficient frequency spectrum utilization and minimization of interference effects (by satisfying a number
Deepak Kumar Singh +2 more
doaj +1 more source
Radio labeling with pre-assigned frequencies [PDF]
, 2002 A radio labeling of a graph $G$ is an assignment of pairwise distinct, positive integer labels to the vertices of $G$ such that labels of adjacent vertices differ by at least $2$. The radio labeling problem (\mbox{\sc RL}) consists in determining a radio
Artem V. Pyatkin +9 more
core +7 more sources
A HYBRID ALGORITHM FOR SOLVING FREQUENCY ASSIGNMENT PROBLEM IN CELLULAR NETWORK [PDF]
Journal of Engineering Science and Technology, 2017 Frequency allocation problem is considered an NP problem which requires a large search space to find the optimal solution. This paper presents a hybrid algorithm between the Hopfield neural network and the tabu search techniques algorithm to allocate ...
TAYSEER S. ATIA, AHMMED Y. YOUSIF
doaj
Radio Labeling of Supersub—Division of Path Graphs
IEEE Access, 2023 Motivated by the channel assignment problem, we study the radio labeling of graphs. The radio labeling problem is an important topic in discrete mathematics due to its diverse applications, e.g., frequency assignment in mobile communication systems ...
Baskar Mari, Ravi Sankar Jeyaraj
doaj +1 more source
The research of (2,1)-total labelling of trees basen on Frequency Channel Assignment problem
MATEC Web of Conferences, 2015 Let T be a tree, Let DΔ(T) denote the set of integers k for which there exist two distinct vertices of maximum degree of distance at k in T. The (2,1)-total labelling number of a graph G is the width of the smallest range of integers that suffices to ...
Sun Haina
doaj +1 more source
An assessment of health behavior peer effects in Peking University dormitories: a randomized cluster-assignment design for interference. [PDF]
PLoS ONE, 2013 BACKGROUND: Relatively little is known about the peer influence in health behaviors within university dormitory rooms. Moreover, in China, the problem of unhealthy behaviors among university students has not yet been sufficiently recognized.
Changzheng Yuan +2 more
doaj +1 more source
AerospaceWith the rapid development of both commercial and general aviation, the frequency assignment problem for aviation navigation stations has become increasingly important.
Boyang Hao +6 more
doaj +1 more source
IEEE Access, 2019 Non-orthogonal multiple access (NOMA) technique, which is known to raise the performance of frequency spectrum constrained wireless communication networks, has obtained wide attention. In this paper, a NOMA-based resource allocation problem in the decode-
Guangjun Liang +4 more
doaj +1 more source