Evaluation of inter-cell interference suppression using tunable beam-width microstrip antenna in actual indoor environment

Saito, Masatoshi; Honma, Naoki; Murakami, Tomoki; Chen, Qiang

doi:10.1109/aps.2013.6710849

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2016

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“…As the AP antennas, tunable radiation pattern antennas are used. This analog pattern control is combined with digital transmit beamforming in this method [9]. In order to clarify the effect of analog pattern control in multi-cell environment, we measured MIMO channels between AP with four tunable beam-width antennas and STAs with four small antennas in an actual indoor environment.…”

Section: Introductionmentioning

confidence: 99%

Impact of Radiation Pattern Control of MIMO Antenna on Interfered Multicell Environment

Saitoh

Honma

Murakami

2016

Antennas Wirel. Propag. Lett.

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This report proposes an improved method of maximizing the achievable rate using analog radiation pattern control combined with transmit beamforming in multiple-Access Point (AP) environments; it is evaluated by measurements. As the AP antennas, tunable beamwidth antennas using parasitic antennas loaded by varactor diodes are used. 4×4 Multiple-Input Multiple-Output (MIMO) channels are measured in an actual indoor environment, where two sets of cells exist. It is shown that the proposed method is effective in enhancing the achievable rate for multiple-AP environment.Index Terms-radiation pattern control, transmit beamforming, inter-cell interference, wireless LAN.1536-1225 (c)

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Section: Introductionmentioning

confidence: 99%