Mobile Ad Hoc Network Based Efficient Broad Casting Using Random Cast Mechanism

Abstract

In mobile unexpected networks (MANETs), every node overhears each knowledge transmission occurring in its neighborhoods and thus, consumes energy unnecessarily. In IEEE 802.11 Power Saving Mechanism (PSM), a packet should be publicized before it is really transmitted. When a node receives an advertised packet that is not destined to it, it switches to a low power sleep state throughout the information transmission amount, and thus, avoids overhearing and on serves energy. However, since some MANET routing protocols like Dynamic supply Routing (DSR) collect route info via overhearing, they would suffer if they are used in combination with 802.11 PSM. Allowing no overhearing may critically deteriorate the performance of the underlying routing protocol, while unconditional overhearing may offset the advantage of using PSM. This paper proposes a new communication mechanism, known as Random Cast, via which a sender will specify the required level of overhearing, making a prudent balance between energy and routing performance. In addition, it reduces redundant rebroadcasts for a broadcast packet and therefore saves a lot of energy. In depth simulation mistreatment ns-2 shows that Random Cast is extremely energy-efficient compared to conventional 802.11 further as 802.11 PSM-based schemes, in terms of total energy consumption, energy good put and energy balance.