Furthermore, the authors introduced TCP and UDP in the scenarios of the first part, to assess
the degree of impact of the transport layer at the network layer. The results confirm that UDP is
more interesting than TCP in terms of QoS management.
There is no ideal and the best routing recommendation for WMN. From the protocols studied in
this paper, OLSR and AODV should be considered as the ideas worth considering. However,
scalability is one of the crucial problems also in this case. One of the solutions is to propose a
new routing metric for the existing protocols, use hybrid routing techniques or/and multiple radios and interfaces in order to improve performance of the network and provide better
capacity of the network
After our previous analysis and existing literature, the routing protocol AODV is most
advantageous to ensure QoS, and naturally, lot of works was directed towards the extension of
AODV, to improve its performances. It is the aim of the paper [6]. Rate aware routing protocol
based on AODV (R-AODV) use minimum network layer transmission time as a performance
metric. Nodes will select higher data rate link using R-AODV.
The simulation result indicates that R-AODV can improve the network throughput and decrease
network delay