Detecting hidden and exposed terminal problems in densely deployed wireless networks

Koichi Nishide, Hiroyuki Kubo, Ryoichi Shinkuma, Tatsuro Takahashi

研究成果: Article査読

32 被引用数 (Scopus)

抄録

In this paper, we discuss problems in densely deployed wireless networks. Particularly, we focus on wireless local area networks (WLANs) because they have enabled us to provide seamless and high capacity wireless access easily and inexpensively. However, recently, channel interference between different services has become a serious problem because access points (APs) of WLANs are located too densely. In the carrier sense multiple access with collision avoidance used in WLANs, the hidden terminal (HT) and the exposed terminal (ET) problems occur depending on the distance between stations and the carrier sensing range. In the higher dense deployment mentioned above, the HT and ET problems occur complicatedly. Therefore, we propose an AP cooperation system that detects the HT and ET problems between stations (STAs). In our system, APs are operated with time synchronization and obtain the information of connected STAs from received frames. The HT and ET problems are identified from the integration of the information obtained at different APs. The effectiveness is verified by simulations.

本文言語English
論文番号6327313
ページ(範囲)3841-3849
ページ数9
ジャーナルIEEE Transactions on Wireless Communications
11
11
DOI
出版ステータスPublished - 2012
外部発表はい

ASJC Scopus subject areas

  • コンピュータ サイエンスの応用
  • 電子工学および電気工学
  • 応用数学

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