Fair burst dropping technique for optical composite burst switched multi-hop network

Optical composite burst switching (OCBS) that can improve the performance of the packet loss probability without fiber delay lines (FDLs), has the problem that it is unfair about the number of hops to the destination edge router for the packet loss probability. In this paper, in order to achieve the fair packet loss probability regardless of the number of hops to the destination edge router, we propose the burst dropping technique that configures the threshold for determining whether the head-dropping (HD) technique is applied or not. The HD technique is the burst dropping technique, which reduces packet loss due to burst contention in OCBS. We compare the packet loss probability and throughput performance of our proposed scheme with those of the conventional one by computer simulations. As a result, we show that our proposed scheme can achieve the fair packet loss probability regardless of the number of hops to the destination edge router compared with a conventional one.