Load balance based relay selection and spectrum transition joint scheme

For load imbalance or hotspot coverage wireless relay network, an adaptive load balance relay selection and spec-trum transition joint scheme was proposed. An interference capacity of the stations was also proposed, which reflects the in-terference to the surrounding co-channel stations. The interfe...

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Main Authors: Bo HUANG, Xu-ming FANG, Yu CHEN, Gao-yong HUANG
Format: Article
Language:zho
Published: Editorial Department of Journal on Communications 2014-06-01
Series:Tongxin xuebao
Subjects:
Online Access:http://www.joconline.com.cn/zh/article/doi/10.3969/j.issn.1000-436x.2014.06.017/
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author Bo HUANG
Xu-ming FANG
Yu CHEN
Gao-yong HUANG
author_facet Bo HUANG
Xu-ming FANG
Yu CHEN
Gao-yong HUANG
author_sort Bo HUANG
collection DOAJ
description For load imbalance or hotspot coverage wireless relay network, an adaptive load balance relay selection and spec-trum transition joint scheme was proposed. An interference capacity of the stations was also proposed, which reflects the in-terference to the surrounding co-channel stations. The interference capacity provides a quantitative interference metric to the surrounding stations on the capacity of the system. When a user requires to access the system, the system chooses a preferred access station and an alternative access station for the user according to the channel quality. If the preferred access station is overloaded and does not have enough resources for the user, the performance between accessing to the alternative station and accessing to the preferred station with spectrum transition from other stations in the same sector were compared, and a better way was choosen to maintain the good system performance. The simulation results show that the spectrum efficiency and blocking probability of the proposed scheme in the center cell are superior to that of the independent relay selection scheme and the independent load balance based spectrum transition scheme, and the average interference capacity of the proposed scheme is the lowest, which has less impact on the performance of the surrounding stations.
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spelling doaj-art-da21600cd2a9468b970ea05498a8b4e52025-01-14T06:43:35ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2014-06-013513213859682253Load balance based relay selection and spectrum transition joint schemeBo HUANGXu-ming FANGYu CHENGao-yong HUANGFor load imbalance or hotspot coverage wireless relay network, an adaptive load balance relay selection and spec-trum transition joint scheme was proposed. An interference capacity of the stations was also proposed, which reflects the in-terference to the surrounding co-channel stations. The interference capacity provides a quantitative interference metric to the surrounding stations on the capacity of the system. When a user requires to access the system, the system chooses a preferred access station and an alternative access station for the user according to the channel quality. If the preferred access station is overloaded and does not have enough resources for the user, the performance between accessing to the alternative station and accessing to the preferred station with spectrum transition from other stations in the same sector were compared, and a better way was choosen to maintain the good system performance. The simulation results show that the spectrum efficiency and blocking probability of the proposed scheme in the center cell are superior to that of the independent relay selection scheme and the independent load balance based spectrum transition scheme, and the average interference capacity of the proposed scheme is the lowest, which has less impact on the performance of the surrounding stations.http://www.joconline.com.cn/zh/article/doi/10.3969/j.issn.1000-436x.2014.06.017/relay networkload balancerelay selectionfrequency transition
spellingShingle Bo HUANG
Xu-ming FANG
Yu CHEN
Gao-yong HUANG
Load balance based relay selection and spectrum transition joint scheme
Tongxin xuebao
relay network
load balance
relay selection
frequency transition
title Load balance based relay selection and spectrum transition joint scheme
title_full Load balance based relay selection and spectrum transition joint scheme
title_fullStr Load balance based relay selection and spectrum transition joint scheme
title_full_unstemmed Load balance based relay selection and spectrum transition joint scheme
title_short Load balance based relay selection and spectrum transition joint scheme
title_sort load balance based relay selection and spectrum transition joint scheme
topic relay network
load balance
relay selection
frequency transition
url http://www.joconline.com.cn/zh/article/doi/10.3969/j.issn.1000-436x.2014.06.017/
work_keys_str_mv AT bohuang loadbalancebasedrelayselectionandspectrumtransitionjointscheme
AT xumingfang loadbalancebasedrelayselectionandspectrumtransitionjointscheme
AT yuchen loadbalancebasedrelayselectionandspectrumtransitionjointscheme
AT gaoyonghuang loadbalancebasedrelayselectionandspectrumtransitionjointscheme