QoS Aware Scheduling Based Routing Protocol (QoS-SBRP) for Heterogeneous Mobile Ad hoc Networks

Ensuring QoS is the major research dimension in the area of MANET by which reliable transmission of data is ensured. This research focuses in proposing a routing mechanism which ensures QoS through packet scheduling. The proposed routing scheme has contributions three fold. At first, a QoS-aware neighbor node selection mechanism is incorporated in order to meet the transmission delay requirement among the mobile nodes. Next, a distributed packet scheduling mechanism for reducing the transmission delay of packets is presented. Finally in order to reduce transmission time, packet resizing mechanism is proposed that adjusts the segment size of the packet in adaptive manner. The proposed routing scheme has been tested on NS-2 using the performance metrics such as throughput, packet delivery ratio, overhead, packets drop and delay. The simulation has been carried out based on pausetime and mobility speed. Mobility speed is evaluated using NS-2 in order to ensure the protocol’s performance on heterogeneous ad hoc networks. Simulation results prove that the proposed mechanism attains better QoS in terms of throughput, packet delivery ratio, overhead, packets drop and delay based on both pausetime and mobility speed. ——————————  ——————————