Hybrid channel gain prioritized access-aware cell association with interference mitigation in LTE-Advanced HetNets

2016 ◽  
Vol 29 (18) ◽  
pp. 2650-2668 ◽  
Author(s):  
M.A. Gadam ◽  
Chee Kyun Ng ◽  
Nor Kamariah Nordin ◽  
Aduwati Sali ◽  
Fazirulhisyam Hashim
2013 ◽  
Vol 2013 ◽  
pp. 1-15 ◽  
Author(s):  
Wolfgang Mennerich ◽  
Michael Grieger ◽  
Wolfgang Zirwas ◽  
Gerhard Fettweis

For today's cellular mobile communication networks, the needed capacity is hard to realize without much more of (expensive) bandwidth. Thus new standards like LTE were developed. LTE advanced is in discussion as the successor of LTE and cooperative multipoint transmission (CoMP) is one of the hot topics to increase the system's capacity. System simulations often show only weak gains of the signal-to-interference ratio due to high interference from noncooperating cells in the downlink. This paper presents an interference mitigation framework to overcome the hardest issue, that is, the low penetration rate of mobile stations that can be served from a cluster composed of their strongest cells in the network. The results obtained from simulation tools are discussed with values resulting from testbed on the TU Dresden. They show that the theoretical ideas can be transferred into gains on real systems.


Author(s):  
Agnieszka Szufarska ◽  
Krystian Safjan ◽  
Klaus I. Pedersen ◽  
Frank Frederiksen ◽  
Stanislaw Strzyz

2016 ◽  
Vol 2016 ◽  
pp. 1-17 ◽  
Author(s):  
Paweł Sroka ◽  
Adrian Kliks

This paper considers the problem of an efficient and flexible tool for interference mitigation in ultradense heterogeneous cellular 5G networks. Several game-theory based approaches are studied, focusing on noncooperative games, where each base station in the end tries to maximize its payoff. An analysis of backhaul requirements of investigated approaches is carried out, with a proposal of a mechanism for backhaul requirements reduction. Moreover, improvements in terms of energy use optimization are proposed to further increase the system gains. The presented simulation results of a detailed ultradense 5G wireless system show that the discussed game-theoretic approaches are very promising solutions for interference mitigation outperforming the algorithm proposed for LTE-Advanced in terms of the achieved spectral efficiency. Finally, it is proved that the introduction of energy-efficient and backhaul-optimized operation does not significantly degrade the performance achieved with the considered approaches.


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