Dynamic bandwidth allocation scheme for network-slicing-based TDM-PON toward the beyond-5G era

Abstract

In the coming 5G mobile communications era, a huge number of wireless access points will be densely deployed for networks such as mobile fronthaul and Internet-of-Things networks. A network-slicing-based time-division-multiplexing passive optical network (TDM-PON) is one solution for cost-effectively accommodating these access points. It enables us to converge these multiple networks that have different requirements by virtually isolating each sub-network on a single TDM-PON. To achieve this TDM-PON convergence, we propose a dynamic bandwidth allocation scheme that performs uplink bandwidth allocations in a different manner at every sub-network in order to simultaneously satisfy each sub-network requirement. Experiments show that the scheme can simultaneously provide low-latency transmission, bandwidth guarantee, and an auto-discovery process.

Low Latency DWBA Scheme for Mini-Slot Based 5G new Radio in a Fixed and Mobile Converged TWDM-PON

“…It could be reduced to about 5us in [4] through a novel intra-channel activation, called whisper ranging, to avoid the interruption of low-latency services. In addition, a recent study proposed to assign the discovery window by using network slicing [5], which is to accommodate fronthaul traffic and discovery window through different slices. Another biggest latency consumer is the procedure of dynamic bandwidth allocation (DBA), which is focused in this paper.…”

Uplink Spectrum Overlay Coverage Enhancement Algorithm in 5G Network

“…In formula (3), P represents all other RBG sizes, and the first RBG size is calculated by the following formula:…”

“…e difference in uplink and downlink coverage is huge, and the uplink coverage is obviously limited [3][4][5]. In the deployment of vertical industry applications, its uplink coverage and speed are a major requirement.…”

Comparison of Optical Transport Technologies for Centralized Radio Access Network Using Optical Ground Wire

“…Wireless access using C-RAN configurations using timedivision optical network (TDM-PON) have been studied to realize cost-effective implementation. TDM-PON using dynamic bandwidth allocation (DBA) was proposed to realize low-latency, bandwidth guarantee and auto-discovery process simultaneously in [19]. A unified mobile and PON scheduler known as Mobile-PON has been investigated to improve bandwidth-efficiency and processing-delay on uplink in [20].…”