Optimal Base Station Density of Dense Network: From the Viewpoint of Interference and Load

Network densification is attracting increasing attention recently due to its ability to improve network capacity by spatial reuse and relieve congestion by offloading. However, excessive densification and aggressive offloading can also cause the degradation of network performance due to problems of...

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Main Authors: Jianyuan Feng, Zhiyong Feng
Format: Article
Language:English
Published: MDPI AG 2017-09-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/17/9/2077
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author Jianyuan Feng
Zhiyong Feng
author_facet Jianyuan Feng
Zhiyong Feng
author_sort Jianyuan Feng
collection DOAJ
description Network densification is attracting increasing attention recently due to its ability to improve network capacity by spatial reuse and relieve congestion by offloading. However, excessive densification and aggressive offloading can also cause the degradation of network performance due to problems of interference and load. In this paper, with consideration of load issues, we study the optimal base station density that maximizes the throughput of the network. The expected link rate and the utilization ratio of the contention-based channel are derived as the functions of base station density using the Poisson Point Process (PPP) and Markov Chain. They reveal the rules of deployment. Based on these results, we obtain the throughput of the network and indicate the optimal deployment density under different network conditions. Extensive simulations are conducted to validate our analysis and show the substantial performance gain obtained by the proposed deployment scheme. These results can provide guidance for the network densification.
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spelling doaj.art-be0c52b458d0433893a96c3457058c7c2022-12-22T01:58:25ZengMDPI AGSensors1424-82202017-09-01179207710.3390/s17092077s17092077Optimal Base Station Density of Dense Network: From the Viewpoint of Interference and LoadJianyuan Feng0Zhiyong Feng1School of Information and Communication Engineering, Beijing University of Posts and Telecommunications (BUPT), Beijing 100876, ChinaSchool of Information and Communication Engineering, Beijing University of Posts and Telecommunications (BUPT), Beijing 100876, ChinaNetwork densification is attracting increasing attention recently due to its ability to improve network capacity by spatial reuse and relieve congestion by offloading. However, excessive densification and aggressive offloading can also cause the degradation of network performance due to problems of interference and load. In this paper, with consideration of load issues, we study the optimal base station density that maximizes the throughput of the network. The expected link rate and the utilization ratio of the contention-based channel are derived as the functions of base station density using the Poisson Point Process (PPP) and Markov Chain. They reveal the rules of deployment. Based on these results, we obtain the throughput of the network and indicate the optimal deployment density under different network conditions. Extensive simulations are conducted to validate our analysis and show the substantial performance gain obtained by the proposed deployment scheme. These results can provide guidance for the network densification.https://www.mdpi.com/1424-8220/17/9/2077network densificationheterogeneous networkinterferenceloadbase station density
spellingShingle Jianyuan Feng
Zhiyong Feng
Optimal Base Station Density of Dense Network: From the Viewpoint of Interference and Load
Sensors
network densification
heterogeneous network
interference
load
base station density
title Optimal Base Station Density of Dense Network: From the Viewpoint of Interference and Load
title_full Optimal Base Station Density of Dense Network: From the Viewpoint of Interference and Load
title_fullStr Optimal Base Station Density of Dense Network: From the Viewpoint of Interference and Load
title_full_unstemmed Optimal Base Station Density of Dense Network: From the Viewpoint of Interference and Load
title_short Optimal Base Station Density of Dense Network: From the Viewpoint of Interference and Load
title_sort optimal base station density of dense network from the viewpoint of interference and load
topic network densification
heterogeneous network
interference
load
base station density
url https://www.mdpi.com/1424-8220/17/9/2077
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