Table I summarizes the performance of the protocols. As for
the average number of hops, it remains around 5% longer in the
MMBCR than in the MTPR. This can affect the average endto-
end delay of data packets without queues delay. However,
when the end-to-end delay includes the time spent by a packet
in the queues, it not only depends on the average number of
hops but also depends on congestion and traffic condition over
intermediate nodes.
When considering the mean connection expiration time
(MCET), the MTPR shows around 9% improvement over
the MMBCR. Furthermore, since the throughput depends on
the connection expiration time, the MTPR also improves the
throughput as compared to the MMBCR.
When the energy consumption due to the overhearing is considered,
although the packets traverse over only the acquired
path, all neighboring nodes of the intermediate nodes over the
route also suffer from spending their scarce battery resource,
regardless of their participation in forwarding by overhearing
the transmission. Thus, all the protocols behave similar with
respect to all performance metrics (see Figure 1(a) and Table
II).