On Utilizing Directional Antenna in 802.11 Networks: Deafness Study

Guoqing Li; L.  Lily Yang

2nd International IEEE Workshop on Wireless Personal and Local Area Networks

Research Article

On Utilizing Directional Antenna in 802.11 Networks: Deafness Study

Cite: BibTeX Plain Text

@INPROCEEDINGS{10.1109/COMSWA.2007.382502,
    author={Guoqing Li and L.  Lily Yang},
    title={On Utilizing Directional Antenna in 802.11 Networks: Deafness Study},
    proceedings={2nd International IEEE Workshop on Wireless Personal and Local Area Networks},
    publisher={IEEE},
    proceedings_a={WILLOPAN},
    year={2007},
    month={7},
    keywords={Communications technology  Deafness  Degradation  Directional antennas  Interference suppression  Media Access Protocol  Multiaccess communication  Scattering  Throughput  Transmitters},
    doi={10.1109/COMSWA.2007.382502}
}

Guoqing Li
L. Lily Yang
Year: 2007
On Utilizing Directional Antenna in 802.11 Networks: Deafness Study
WILLOPAN
IEEE
DOI: 10.1109/COMSWA.2007.382502

Guoqing Li¹^,*, L. Lily Yang²^,*

1: Communication Technology Lab, Intel Corporation 2111 NE 25th Ave, Hillsboro, OR 97124.
2: Communication Technology Lab, Intel Corporation 2111 NE 25th Ave, Hillsboro, OR 97124,

*Contact email: guoqing.c.li@intel.com, lily.l.yang@intel.com

Abstract

This paper presents a performance study of the deafness effect caused by the use of directional antenna in 802.11 networks. We show that different assumptions on antenna and channel model lead to different conclusions on the impact of deafness on network performance. Specifically, it is shown that in the presence of channel scatters between the transmitter and the receiver, directional antenna does not pose significant deafness and performance degradation. We also show that there always exists a CCA (clear-channel-assessment) threshold that eliminates deafness completely, even under existing 802.11 MAC protocols.

Keywords: Communications technology Deafness Degradation Directional antennas Interference suppression Media Access Protocol Multiaccess communication Scattering Throughput Transmitters

Published: 2007-07-09
Publisher: IEEE
Modified: 2011-07-27

: http://dx.doi.org/10.1109/COMSWA.2007.382502