Title :
An Interference-Aware Busy Tone Based MAC Protocol
Author :
Li, Ying ; Li, Minglu ; Wu, Min-You
Author_Institution :
Dept. of Comput. Sci. & Eng., Shanghai Jiao Tong Univ.
Abstract :
Exposed and hidden terminal problems decrease the performance of 802.11 MAC protocol in mobile ad hoc network (MANET). We figure out that the two problems are due to a single fundamental reason, that is, 802.11 uses an oversimplified interference model. We propose an interference-aware busy tone based MAC protocol (IABT) to improve the throughput of MANET. Encoding the interference information in the frequency, a busy tone will reserve the space necessary for the ongoing transmission. Our protocol can solve both the hidden and exposed terminal problem simultaneously. Examined by NS2 simulator, the protocol can reduce the MAC collisions and improve the performance substantially
Keywords :
access protocols; ad hoc networks; mobile radio; radiofrequency interference; wireless LAN; 802.11 MAC protocol; interference-aware busy tone; mobile ad hoc network; oversimplified interference model; Access protocols; Computer science; Degradation; Encoding; Frequency; Interference; Media Access Protocol; Mobile ad hoc networks; Throughput; Wireless networks;
Conference_Titel :
Vehicular Technology Conference, 2007. VTC2007-Spring. IEEE 65th
Conference_Location :
Dublin
Print_ISBN :
1-4244-0266-2
DOI :
10.1109/VETECS.2007.20
