An improved water-filling algorithm based on power allocation in downlink network

Xiaokai Ma

doi:10.1117/12.2631979

14 April 2022 An improved water-filling algorithm based on power allocation in downlink network

Xiaokai Ma

Proceedings Volume 12178, International Conference on Signal Processing and Communication Technology (SPCT 2021); 1217826 (2022) https://doi.org/10.1117/12.2631979
Event: International Conference on Signal Processing and Communication Technology (SPCT 2021), 2021, Tianjin, China

Abstract

In modern communication network it’s always vital to deliver high quality and reasonable services to users as well as having the ability to adjust system parameters according to the environmental change, which is called cognitive radio. Currently there are many power allocation algorithms that have this ability, such as Transmit Interference Temperature Limit(tx-ITL). In this paper, firstly, the advantages and drawbacks of existing algorithms will be discussed . Secondly, an improved algorithm based on tx-ITL is proposed to try to fix the drawbacks of previous algorithms in fiercely changing environment. Finally, the simulation results of proposed algorithm show an improvement in robustness and fairness of network while still reaching the satisfying capacity. This improved method may help communication network to operate in a smarter way.

Citation Download Citation

Xiaokai Ma "An improved water-filling algorithm based on power allocation in downlink network", Proc. SPIE 12178, International Conference on Signal Processing and Communication Technology (SPCT 2021), 1217826 (14 April 2022); https://doi.org/10.1117/12.2631979

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