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- Title
Channel allocation and power control schemes for cross-tier 3GPP LTE networks to support multimedia applications.
- Authors
Su, Xin; Wang, Yang; Choi, Dongmin; Kim, Pankoo; Choi, Chang
- Abstract
In this paper, we present the framework of a channel allocation (CA) and power control (PC) schemes for the minimization of interference in cross-tier 3GPP LTE networks that aim to support internet of multimedia things. Channel allocation scheme based on an interference graph preserving the minimum number of interfered MUEs by femtocells (IG-MIM) is proposed to mitigate interference amongst femtocells, and a game theory based power control algorithm is also proposed to reduce interference to surrounding macrocell users (MUEs). The proposed IG-MIM scheme constructs the interference graph based on a predefined threshold and allocates the subchannels to the femtocells that maintain the smallest number of interfered MUEs. For the power control, we design a payoff function based on the rewards from the achieved data rates and the penalties from the interference in regards to its adjacent femtocells. The simulation results show that the IG-MIM channel allocation significantly improves the SINR performance for the femtocell users (FUEs) being served; the game theory based power control decreases the power requirements of a femtocell and alleviates the interference to the MUEs.
- Subjects
BANDWIDTH allocation; MULTIMEDIA systems; LONG-Term Evolution (Telecommunications); INTERFERENCE (Telecommunication); FEMTOCELLS; GAME theory
- Publication
Multimedia Tools & Applications, 2017, Vol 76, Issue 24, p25875
- ISSN
1380-7501
- Publication type
Article
- DOI
10.1007/s11042-016-4320-3