Comparing tcp and udp performance in MANETS using multipath enhanced versions of dsr and dymo

Multi-path routing is a technique that can improve the performance of networks in general, mobile ad hoc networks included. One of the main benefits of multi-path routing in MANET environments is that it provokes traffic dispersion, which provides load-balancing, reduces the energy consumed by nodes, and difficults traffic analysis. In this work we study the impact of traffic dispersion on both UDP and TCP data streams by designing and comparing the multipath version of two reactive protocols: DYMO and DSR. We analyze the actual degree of traffic dispersion due to the different route discovery and route selection algorithms adopted by each protocol, and we compute the impact of this parameter on the performance results. Through a set of simulation-based experiments we show that DSR is a more flexible protocol for supporting multipath routing, offering significant improvements in terms of traffic dispersion with respect to multipath-enabled DYMO