Semi-Definite positive Programming Relaxations for Graph Kn-Coloring in Frequency Assignment

2001 ◽  
Vol 35 (2) ◽  
pp. 211-228 ◽  
Author(s):  
Philippe Meurdesoif ◽  
Benoît Rottembourg
Keyword(s):  
Frequency Assignment

Mobile network synthesis strategy

2019 ◽  
pp. 98-101
Author(s):  
V. Lyandres
Keyword(s):  
Average Distance ◽  
Mobile Network ◽  
Base Station ◽  
Service Area ◽  
Base Stations ◽  
Frequency Assignment ◽  
Network Synthesis ◽  
Universal Method ◽  
Synthesis Strategy ◽  
Adaptive Vector Quantization

Introduction:Effective synthesis of а mobile communication network includes joint optimisation of two processes: placement of base stations and frequency assignment. In real environments, the well-known cellular concept fails due to some reasons, such as not homogeneous traffic and non-isotropic wave propagation in the service area.Purpose:Looking for the universal method of finding a network structure close to the optimal.Results:The proposed approach is based on the idea of adaptive vector quantization of the network service area. As a result, it is reduced to a 2D discrete map split into zones with approximately equal number of service requests. In each zone, the algorithm finds such coordinates of its base station that provide the shortest average distance to all subscribers. This method takes into account the shortage of the a priory information about the current traffic, ensures maximum coverage of the service area, and what is not less important, significantly simplifies the process of frequency assignment.

Frequency assignment problem in satellite communications using differential evolution

2010 ◽  
Vol 37 (12) ◽  
pp. 2152-2163 ◽  
Author(s):  
Ayed A. Salman ◽  
Imtiaz Ahmad ◽  
Mahamed G.H. Omran ◽  
Mohammad Gh. Mohammad
Keyword(s):  
Differential Evolution ◽  
Assignment Problem ◽  
Satellite Communications ◽  
Frequency Assignment ◽  
Frequency Assignment Problem

Perturbation-minimizing frequency assignment in a changing TDMA/FDMA cellular environment

2000 ◽  
Vol 49 (2) ◽  
pp. 390-396 ◽  
Author(s):  
Dong-Wang Tcha ◽  
June-Hyuk Kwon ◽  
Taek-Jin Choi ◽  
Se-Hyun Oh
Keyword(s):  
Frequency Assignment ◽  
Cellular Environment

Frequency Assignment Problems

1999 ◽  
pp. 295-377 ◽  
Author(s):  
Robert A. Murphey ◽  
Panos M. Pardalos ◽  
Mauricio G. C. Resende
Keyword(s):  
Frequency Assignment ◽  
Assignment Problems
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