A directional hidden terminal problem in ad hoc network MAC protocols with smart antennas and its solutions

Author

Sekido, Masanori ; Takata, Masanori ; Bandai, Masaki ; Watanabe, Takashi

Author_Institution

Fac. of Inf., Shizuoka Univ., Hamamatsu

Volume

5

fYear

2005

fDate

2-2 Dec. 2005

Lastpage

2583

Abstract

Smart antennas are expected to enhance scalability in ad hoc networks. This paper describes the evaluations of three directional MAC protocols, DMAC, MMAC, and SWAMP, as well as the IEEE 802.11 DCF omni-directional protocol in a multi-hop transmission environment. These evaluations address the problem that performance strongly depends on the route topology between the source and destination, referred to as the directional hidden terminal problem. After analyzing this problem, we propose three MAC level solutions. The MAC solutions are NAV indicators, i.e. HCTS, BRTS, and RCTS, which indicate on-going communications to a directional hidden terminal to set NAV. Based on simulated results, we show that all the proposed MAC solutions could improve the throughput performance

Keywords

access protocols; ad hoc networks; adaptive antenna arrays; telecommunication network routing; telecommunication network topology; wireless LAN; DCF omni-directional protocol; IEEE 802.11; ad hoc network MAC protocols; directional hidden terminal problem; multihop transmission environment; route topology; smart antennas; Access protocols; Ad hoc networks; Communication system control; Directive antennas; Intelligent networks; Media Access Protocol; Mobile ad hoc networks; Peer to peer computing; Throughput; Wireless application protocol;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 2005. GLOBECOM '05. IEEE

Conference_Location

St. Louis, MO

Print_ISBN

0-7803-9414-3

Type

conf

DOI

10.1109/GLOCOM.2005.1578227

Filename

1578227