Abstract-In this paper we address issues with the performance of IEEE 802.11, when used in the adhoc mode, in the presence of hidden terminals. We present results illustrating the strong dependence of channel capture behavior on the SNR observed on contending hidden connections. Experimental work has illustrated that in a hidden terminal scenario, the connection having the strongest SNR is able to capture the channel, despite the use of the RTS-CTS-DATA-ACK 4-way handshake designed to alleviate this problem. Our results indicate that the near-far SNR problem may have a significant effect on the performance of an adhoc 802.11 network.
REF presents empirical results for 802.11 ad hoc networks that indicate that the packet capture may have a significant effect on the performance of an ad hoc 802.11 network despite the use of the RTS-CTS-DATA-ACK 4-way handshake.
Unfairness and capture behaviour in 802.11 adhoc networks
2000 IEEE International Conference on Communications. ICC 2000. Global Convergence Through Communications. Conference Record
2000 IEEE International Conference on Communications. ICC 2000. Global Convergence Through Communications. Conference Record
Computer Science