Original scientific paper
https://doi.org/10.1080/00051144.2024.2326373
Power control in LTE based on heuristic game theory for interference management
D. Diana Josephine
; Department of Electronics and Communication Engineering, Coimbatore Institute of Technology, Coimbatore, India
*
A. Rajeswari
; Coimbatore Institute of Technology, Coimbatore, India
* Corresponding author.
Abstract
In the conventional LTE homogeneous network, sufficient transmit power of user equipment
(UE) is determined by open-loop power control (OL-PC) and closed-loop power control (CL-PC)
schemes. However, in a Het-Net environment, setting the UE’s transmit power requires delicate responsiveness to handle the severe and complicated uplink interference. In this paper, an
interference-aware uplink power control mechanism based on Heuristic game theory approach
is proposed for devices coexisting in a heterogeneous wireless network. Various wireless constraints like channel response, path loss, fading, shadowing, interference and metrics like SNR,
SINR, throughput and bit rates are considered. Uplink power is controlled by suitably selecting
the penalization factor (β) based on a simple Heuristic game theory approach considering the
possible wireless constraints of each user depending on its location in the cell under consideration. The algorithm is framed in such a way to reduce inter-cell interference, limit transmit power,
enhance bit rates and throughput of users. A significant improvement of 5.2% in the user coverage/distribution is achieved as a result of interference management compared to conventional
power control scheme and power control with convex pricing.
Keywords
Het-net; heuristic game theory approach; inter-cell interference; power control; wireless network
Hrčak ID:
326208
URI
Publication date:
11.3.2024.
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