A comparison of the performance of TCP-Reno and TCP-Vegas over MANETs

IETF MANET (mobile ad hoc network) working group has standardized AODV (ad hoc on-demand distance vector) and OLSR (optimized link state routing) as its reactive and proactive routing protocols, respectively. In addition, from the transport layer´s perspective, TCP (transmission control protocol) is still needed for MANET since it is widely used in the current Internet and suitable for smooth integration with the fixed Internet. Particularly, TCP has its variants, namely TCP-Reno and TCP-Vegas. However, there has been no research work on extensive performance comparison of TCP-Reno and TCP-Vegas over AODV and OLSR. Through extensive simulations, we found that the selected routing protocols is more important than the selected TCP variant, because the performance difference between TCP-Reno and TCP-Vegas over any selected routing protocol is not relevant.