Throughput and fairness of femtocell users in OFDM macrocell-femtocell networks

Poramate Tarasak, Tony Q.S. Quek

研究成果: Conference contribution

2 引文 斯高帕斯(Scopus)

摘要

While femtocell network enhances throughput and coverage, it also introduces cross-tier interference. In the uplink, to protect existing macrocell users (MUs), the interference accumulated at the macrocell base station (MBS) by femtocell users (FUs) should be limited. Due to variable distances between a femtocell base station (FBS) and the MBS, FU associated with the FBS closer to the MBS will impose more interference to the MBS due to smaller path loss. To meet the interference constraint at the MBS, the FU closer to the MBS has a stricter transmission power limit than the FU further away from the MBS. In this situation, fairness issue arises among the FUs. In this paper, we consider an uplink power allocation problem for orthogonal frequency division multiplexing (OFDM) transmissions under the rise-over-thermal constraint at the MBS and evaluate throughput and fairness of the FUs. Our simulation results indicate that the instantaneous channel knowledge between the FUs and the MBS increases throughput and fairness of the FUs compared to the average channel knowledge. In addition, wall loss is beneficial in improving the throughput and fairness as it suppresses interference from FUs to the MBS.

原文English
主出版物標題2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC'11
頁面202-206
頁數5
DOIs
出版狀態Published - 2011
事件2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC'11 - Toronto, ON, Canada
持續時間: 2011 九月 112011 九月 14

出版系列

名字IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC

Other

Other2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC'11
國家/地區Canada
城市Toronto, ON
期間11-09-1111-09-14

All Science Journal Classification (ASJC) codes

  • 電氣與電子工程

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