HPDST: Holding pathlength domain scheduled traffic strategy for multi-domain optical networks

Elastic Optical Network: A Promising Solution for Future Communication Networks Considering Differentiated CoS

“…The ratio of blocked connections to the total arrived connection requests is known as BP. The parameter is evaluated on two standard network topologies, namely INDIAN network (consisting of 14 nodes [37] and ARPANET (consisting of 20 nodes and 32 links) [38,39]. Figure 3 shows the graph of BP versus the number of requests arrived in the network.…”

RDMSR: A reactive defragmentation with minimum spectrum route strategy for mixed grid optical network

“…4 The performance of all the strategies is evaluated for three traffic profiles (TP), which is mentioned in Table 2. 4,11 BBP is calculated for different values of K. Higher value of K means more number of alternate routes, which results lower BBP. Performance of all the strategies is evaluated for K = 2, 3, 5.…”

“…Furthermore, different modulation formats used in flexible node architecture result more spectrum efficiency than the traditional WDM network. [10][11][12] Modulation format selection depends on the length of the network link over which signal is transmitted. BPSK is used for communication for longer distance signal transmission whereas 32-Quadrature Amplitude Modulation (32-QAM) used for the relatively shorter distance.…”

“…Furthermore, when taking into account the modulation format while routing, the issue transforms into routing, spectrum, and modulation format (RSMA) assignment in optical network. [10][11][12] In the mixed grid network, connections are established by three types of routing and spectrum assignment: routing and wavelength assignment (RWA), routing spectrum assignment (RSA), routing and mixed bandwidth assignment (RMA). In RWA and RSA, on routes, wavelength and frequency slots are allocated to the connections request, respectively.…”

“…In continuity constraint, network service provider is bounded for the assignment of same bandwidth on the entire links of the route. 3,11,13 And in contiguity, contiguous bandwidth on the links of route must be assigned due to the physical limitations of bandwidth variable transponder. 4,13,15 Fragmentation of the network can be minimized either in a proactive or reactive manner.…”