Power Allocation in Massive MIMO-HWSN Based on the Water-Filling Algorithm

被引：9
|
作者：
Li, Zhe [1 ]
Verma, Sahil [2 ]
Jin, Machao [3 ]
机构：
[1] Railway Police Coll, Sch Informat Engn, Dept Railway Policing, Zhengzhou, Peoples R China
[2] Chandigarh Univ, Mohali, India
[3] Shanxi Met Geotech Engn Invest Co Ltd, Dept Informat & Commun, Taiyuan, Shanxi, Peoples R China
来源：
WIRELESS COMMUNICATIONS & MOBILE COMPUTING | 2021年 / 2021卷
关键词：
CHANNEL ESTIMATION; RESOURCE-ALLOCATION; SENSOR NETWORKS; WIRELESS; CONTAMINATION; THROUGHPUT; INTERNET;
D O I：
10.1155/2021/8719066
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Pilot power allocation for Internet of Things (IoT) devices in massive multi-input multioutput heterogeneous wireless sensor networks (MIMO-HWSN) is studied in this paper. The interference caused by fractional pilot reusing in adjacent cells had a negative effect on the MIMO-HWSN system performance. Reasonable power allocation for users can effectively weaken the interference. Motivated by the water-filling algorithm, we proposed a suboptimal pilot transmission power method to improve the system capacity. Simulation results show that the proposed method can significantly improve the uplink capacity of the system and explain the influence of different pilot transmission power on the performance of the system, but the complexity of the system almost does not increase.
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收藏
页数：11
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