Browsing by Author "Daniel, Iyasu"

Now showing 1 - 1 of 1
  • No Thumbnail Available
    Item
    Assessing the Effect of Packet Size on Proactive Mobile Ad Hoc Network Routing Protocols
    (Addis Ababa University, 2014-10) Daniel, Iyasu; Negash, Yalemzewd(PhD)
    The existence of different kinds of wireless technologies enabled formation of two types of Mobile Ad hoc Networks (MANET). Homogeneous MANETwhere communication is entirely infrastructurless and Heterogeneous MANET where the network is composed of infrastructured and non-infrastructured Wireless Local Area Networks (WLANs). MANET use particular routing protocols designed to cope with the absence of central coordinator to route packets and can be classified as proactive and reactive.The control messages generated by each routing protocol vary which affects the size of the payload in a single transmission. This Masters Thesisimplements two proactive routing protocols in homogeneous and heterogeneous environment and assesses the effect of packet size on the performance of the two environments and uses the reserved bits to signal that a node can be used as a gate way From the tests we showed the performance degradation for Destination Sequenced Distance Vector(DSDV) routing protocol interms of throughput is reduced about (8.7% - 10.5%) and for Optimized Link State Routing(OLSR) protocol (3.51% - 4.08%) as compared to to Ad hoc On Demand Distance Vector(AODV) routing protocol .Considering PDR as a performance metrics for DSDV the reduction is about (11.7% - 28.6%) and for OLSR(6.1% -10.4%) as compared to AODV.The environments have been developed using omnet++ simulator. The findings show network performances increase as the packet size increase .In addition the presence of multigateway has positive correlation with network performance. Keywords: DSDV, Packetsize, gateway, Proactive MANET, HetrogeneousMANET, OLSR, Throughput, PDR, OLSR