Analysis of Energy Saving Parameters and Open Loop Scheme in Mobile Communication Network

Abstract

Background: In cellular wireless networks, power control refers to regulating the output power levels of transmitters, referred to as eNodeB in the downlink and user equipment (UEs) in the uplink. LTE employs two different techniques for uplink power management: Open Loop Power Control (OLPC) and Closed Loop Power Control (CLPC) (CLPC). Uplink OLPC is performed by the UE in line with the eNodeB configuration, and it may compensate for long-term channel changes such as path loss and shadowing. The uplink CLPC technique seeks to improve power control performance by compensating for fast channel changes caused by multipath fading. To regulate the transmit power of the UE, the eNodeB sends Transmit Power Control (TPC) signals to the UE in CLPC.

Methods: In order to reduce UE energy consumption, the Okumura-Hata propagation path loss model is utilised to calculate the User Equipment (UE) uplink transmit power management parameters in this research. Because the UE requires more power to connect to far base stations than to local base stations, this thesis examines the required power levels using the Okumura-Hata propagation, COST 231 path loss model.

Findings: Comparison between Hata and COST 231 Model, Path loss for different values of alpha, User Equipment (UE) with different height of base station for Rural, Urban and Suburban.

Novelty and Application: This study brings us one step closer to developing “green” cellular networks.