On Bandwidth Tiered Service

Abstract

Abstract-Many network operators offer some type of tiered service, in which users may select only from a small set of service levels (tiers). Such a service has the potential to simplify a wide range of core network functions, allowing the providers to scale their operations efficiently. In this work, we study a number of problem variants related to service tier selection. Our contributions include: 1) a faster algorithm for obtaining optimal service tiers; 2) a new formulation and optimal algorithm to optimize jointly the number and magnitude of each service tier; and 3) the concept of "TDM emulation" in which all service tiers are multiples of the same (software-configurable) bandwidth unit, and a suite of algorithms to select jointly the basic unit and service tiers. Our work provides a systematic framework for reasoning about and tackling algorithmically the general problem of service tier selection, and has applications to a number of networking contexts, including access networks (e.g., determining the tiers for ADSL, cable modem networks or PONs) and core networks (e.g., LSP sizing for MPLS networks).

Current and Future Communication Solutions for Smart Grids: A Review

“…With synchronous TDM, all clocks in the system must align with a reference clock, and vice versa, for statistical TDM. In synchronous TDM, each device is given fixed time slots to [36]. Wavelength-division multiplexing (WDM) is a technique for modulating numerous data streams, and it enables the use of multiple light wavelengths to send data over a single optical fibre medium [37], [38].…”