Presentation 2010/10/7
Spatial Domain Resource Sharing for Overlapping Multi Cells : System Capacity evaluation in Next Generation Wireless LAN
Tomoki MURAKAMI, Riichi KUDO, Takeo Ichikawa, Masato MIZOGUCHI,
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Abstract(in English) Given the increase of wireless devices in WLAN and similar systems and the shortage of available frequency channels, the need to address inter-cell-interference (ICI) is growing more urgent. ICI causes overlapping cells that adjacent cells using same frequency channel communicate, and ICI causes deterioration of spectrum efficiency per cell. As the problems of overlapping cells, we have researched, spatial domain resource sharing, this simple method of suppressing ICI using transmit beam forming in environment which two cells overlap. In this paper, we evaluate system capacity of its performance using frequency channel expected to establish with IEEE802.11ac in environment with two or more cells overlap like an apartment environment. This performance shows that the proposed method can increase the system capacity compared to conventional method. In addition, we confirmed that adjustment area of each frequency channel changes depending on bandwidth of frequency channel and cell overcrowdedness rate.
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Keyword(in English) MIMO / overlapping cells / inter cell interference (ICI) / spatial domain resource
Paper # A・P2010-74
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Committee AP
Conference Date 2010/10/7(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Spatial Domain Resource Sharing for Overlapping Multi Cells : System Capacity evaluation in Next Generation Wireless LAN
Sub Title (in English)
Keyword(1) MIMO
Keyword(2) overlapping cells
Keyword(3) inter cell interference (ICI)
Keyword(4) spatial domain resource
1st Author's Name Tomoki MURAKAMI
1st Author's Affiliation NTT Network Innovation Laboratories, NTT Corporation()
2nd Author's Name Riichi KUDO
2nd Author's Affiliation NTT Network Innovation Laboratories, NTT Corporation
3rd Author's Name Takeo Ichikawa
3rd Author's Affiliation NTT Network Innovation Laboratories, NTT Corporation
4th Author's Name Masato MIZOGUCHI
4th Author's Affiliation NTT Network Innovation Laboratories, NTT Corporation
Date 2010/10/7
Paper # A・P2010-74
Volume (vol) vol.110
Number (no) 223
Page pp.pp.-
#Pages 6
Date of Issue