Future wireless applications will take advantage of rapidly deployable, self-conjiguring multihop ad hoc networks. Because of the dificulty of obtaining IEEE 802.11 feedback about link connectivity in real networks, many multihop ad hoc networks utilize hello messages to determine local connectivity. This paper uses an implementation of the Ad hoc On-demand Distance Vector (AODV) muting protocol to examine the effectiveness of hello messages for monitoring link status. In this study, it is determined that many factors influence the utility of hello messages, including allowed hello message loss settings, discrepancy between data and hello message size and 802.11b packet handling. This paper examines these factors and experimentally evaluates a variety of approaches for improving the accuracy of hello messages as an indicator of local connectivity.
In REF , Chakeres et al proposed to exploit of advantages of adhoc on demand routing protocol and examined the efficacy of HELLO messages for monitoring the node connectivity.
The utility of hello messages for determining link connectivity
The 5th International Symposium on Wireless Personal Multimedia Communications
The 5th International Symposium on Wireless Personal Multimedia Communications
Computer Science