It is possible to concurrently run multiple
applications on IP-core based SoC built using Network
on Chip (NoC) paradigm. Some applications require
predictable and guaranteed on-chip communication
performance. In this paper we propose a new approach
for using underutilized reservation of guaranteed
throughput (GT) traffic to improve the performance of
best effort (BE) traffic. We have modeled our scheme for
a mesh topology NoC on a simulation platform. The
results show that the proposed scheme leads to
significant improvement in BE performance.