Title :
BEAM: broadcast engagement ACK mechanism to support reliable broadcast transmission in IEEE 802.11 wireless ad hoc networks
Author :
Chen, Jenhui ; Huang, Muwen
Author_Institution :
Dept. of Comput. Sci. & Inf. Eng., Chang Gung Univ., Taoyuan, Taiwan
Abstract :
To transfer a broadcast packet safely to all nodes in computer networks is an important issue. However, it is a big challenge to transfer broadcast packets over wireless networks reliably due to the unsettled wireless links and the lack of an acknowledgment (ACK) scheme. Therefore, we propose a reliable broadcast scheme named broadcast engagement ACK mechanism (BEAM) which is completely compatible with the IEEE 802.11 protocol. BEAM is in the data link layer rather than the network layer. This is because the overhead of raising the reliability of broadcast transmission in the network layer can be significantly reduced in the data link layer. Simulation results show that BEAM can reach approximately 100% reliability, even in heavy traffic load. Besides, by using the proposed mechanism, the IEEE 802.11 protocol can provide the reliability of unicast transmissions as well as broadcast transmissions and avoid redundant control overhead.
Keywords :
ad hoc networks; broadcast channels; computer network reliability; mobile radio; wireless LAN; IEEE 802.11 protocol; IEEE 802.11 wireless ad hoc networks; MANET; broadcast engagement ACK mechanism; broadcast packet; computer networks; data link layer; mobile ad hoc network; network layer; reliability; reliable broadcast scheme; reliable broadcast transmission; traffic load; wireless networks; Ad hoc networks; Broadcasting; Communication system control; Computer network reliability; Degradation; Intelligent networks; Mobile ad hoc networks; Protocols; Storms; Unicast;
Conference_Titel :
Vehicular Technology Conference, 2004. VTC2004-Fall. 2004 IEEE 60th
Print_ISBN :
0-7803-8521-7
DOI :
10.1109/VETECF.2004.1400577
