Title :
A comparison study of omnidirectional and directional MAC protocols for ad hoc networks
Author :
Huang, Zhuochuan ; Shen, Chien-Chung
Author_Institution :
Dept. of Comput. & Inf. Sci., Delaware Univ., Newark, DE, USA
Abstract :
Traditional MAC protocols used in ad hoc networks employ omnidirectional antennas. Directional antennas have emerged as an alternative due to their capability of spatial reuse, low probability of detection, robustness to jamming, and other beneficial features. We conducted a comparison study of existing directional and omnidirectional MAC protocols by contrasting their features and evaluating their performance under various network load and topology. Specifically we presented rationale for the better performance of some directional antenna based MAC protocols by using the metric of effective spatial reuse, which is also evidenced by the simulation study.
Keywords :
access protocols; ad hoc networks; directive antennas; land mobile radio; network topology; ad hoc networks; directional MAC protocols; directional antennas; effective spatial reuse; jamming robustness; low detection probability; network load; network topology; omnidirectional MAC protocols; omnidirectional antennas; simulation study; spatial reuse; Access protocols; Ad hoc networks; Collision avoidance; Computer networks; Data communication; Directional antennas; Jamming; Media Access Protocol; Multiaccess communication; Robustness;
Conference_Titel :
Global Telecommunications Conference, 2002. GLOBECOM '02. IEEE
Print_ISBN :
0-7803-7632-3
DOI :
10.1109/GLOCOM.2002.1188041
