On Utilizing Directional Antenna in 802.11 Networks: Deafness Study

Author

Guoqing Li ; Yang, L.L.

Author_Institution

Commun. Technol. Lab., Intel Corp., Hillsboro, OR, USA

fYear

2007

fDate

7-12 Jan. 2007

Firstpage

1

Lastpage

6

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

access protocols; digital simulation; directive antennas; performance evaluation; software packages; telecommunication computing; wireless LAN; 802.11 networks; CCA threshold; MAC protocols; OPNET simulation; WLAN station; channel scatters; clear-channel-assessment threshold; deafness effect; directional antenna receiver; directional antenna transmitter; network performance; Communications technology; Deafness; Degradation; Directional antennas; Interference suppression; Media Access Protocol; Multiaccess communication; Scattering; Throughput; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Communication Systems Software and Middleware, 2007. COMSWARE 2007. 2nd International Conference on

Conference_Location

Bangalore

Print_ISBN

1-4244-0613-7

Type

conf

DOI

10.1109/COMSWA.2007.382502

Filename

4268145