Burst‐by‐burst dynamic bandwidth allocation for XG‐PONs

Abstract

The authors propose and evaluate the performance of a dynamic bandwidth allocation algorithm, namely burstby-bUrst dynamic bandwidth allocation (BUDA), which enables the fair and efficient utilisation of the available upstream resources in 10-Gigabit-capable passive optical networks (XG-PONs). The proposed algorithm emulates a bit-by-bit burst multiplexing process based on the fair queuing scheduling principle to fairly allocate the available upstream bandwidth among several end-users with varying traffic demands. The fair queuing approach is well-suited to the strictly synchronous communication model of XG-PONs, where fixed duration downstream and upstream frames are utilised to delineate transmissions, and the authors demonstrate via simulations that BUDA achieves low and bounded latency, as well as resource allocation fairness over a set of different traffic loads. Furthermore, BUDA is compared with wellknown bandwidth allocation algorithms and a significant latency and fairness benefit is demonstrated.

Passive Optical Networks Progress: A Tutorial

“…The variable-sized header contains the PLOAM message sent in the upstream direction (if it was sent). Additionally, an optional header for transmitting a dynamic bandwidth report upstream (DBRu) message may be included [56,60,61]. The XG-PON frames are shown in Figure 6.…”

Unified Dynamic Bandwidth Allocation Scheme for Ethernet Passive Optical Network

“…Numerous algorithms have been proposed for estimation-based bandwidth allocation. Most of them used the property of a queue and average packet delay to reduce the length [8,[13][14][15][16][17]. However, multiple access schemes are integrated into Long Term Evolution 4G to support a wide range of services, especially machine-to-machine communication [18].…”

“…To conveniently describe abbreviations, and corresponding definitions used throughout manuscript are listed in Table. 1. According to previous studies [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24], the allocation of bandwidth from the point of EPON to its final destination at user premises must be wisely handled.…”