A Fuzzy-Routing-Zone-Based Multicast Routing Protocol for Bluetooth MANET

Abstract

In this paper, a routing protocol which util-izes the characteristics of Bluetooth technology is proposed for Bluetooth-based mobile ad hoc networks. The routing tables are maintained in the master devices and the routing zone radius for each table is adjusted dynamically by using a fuzzy inference system. Observing that there existing some useless routing packets which are helpless to build the routing path and increase the network loads in the existing ad hoc routing protocols, we selectively use multiple unicasts or one broadcast when the destination device is out of the routing zone radius coverage of the rout-ing table. Based on the proposed routing pro-tocol, a source-initiated multicast protocol is developed to transmit packets to a group of nodes. The simulation results show that the dynamic adjustment of the routing table size in each master device results in much less reply time of routing request, fewer request packets and useless packets compared with two repre-sentative protocols, Zone Routing Protocol (ZRP) and Dynamic Source Routing (DSR), and is well suited for the multicast applications in a Blue-tooth MANET.