Power Line communications (PLC) provides “Broadband Ethernet” connectivity directly to the customer’s socket in home without additional cabling. However, PLC networks do not provide global end-to-end connectivity and need to rely on incumbent’s telecom networks. In order to lower the cost of CAPEX and OPEX the network interconnection is done at “Ethernet” level. Most of Incumbent’s networks are...

This document details the changes to GSMP necessary for the support of optical (non-transparent and all optical), SONET/SDH, and spatial switching of IP packets, Layer 2 (L2) frames and TDM data. When implemented, GSMP controllers will then be able to control: photonic cross-connects (optical-optical), transparent optical cross connects (optical-electrical-optical, frame independent), opaque cr...

This work deals with routing schemes in SDH/SONET-WDM multilayer networks applying Synchronous Digital Hierarchy (SDH) or Synchronous Optical Network (SONET) on top of a dynamic photonic network in Wavelength Division Multiplex technology (WDM). The focus are integrated routing schemes which benefit from an integrated view of the SDH/SONET layer and the optical layer. Besides the comparison of ...

Optical Wavelength Division Multiplexing (WDM) rings are being deployed to support SONET/SDH self-healing rings. The cost of such a system is dominated by the SONET Add/Drop Multiplexers (ADMs). To minimize the system cost, algorithms must be developed to assign wavelengths to lightpaths in the system so that the number of ADMs required is minimized. This problem of optimal wavelength assignmen...

SONET ADMs are the dominant cost factor in the WDM=SONET rings. Recently several articles (Belvaux et al., European J. Oper. Res. 108 (1) (1998) 26–35; C+ alinescu and Wan, Tra c partition in WDM=SONET rings to minimize SONET ADMs, submitted for publication; Gerstel et al., Proc. IEEE INFOCOM’98, vol. 1, pp. 94–101; Liu et al., Proc. INFOCOM, vol. 2, 2000, pp. 1020–1025; Sutter et al., Oper. Re...

In the survivability and simplicity aspect, SONET Self-healing Ring(SHR) is one of the most important schemes for the high-speed telecommunication networks. Since the ring capacity requirement is defined by the largest STS-1 cross-section in the ring, load balancing is the key issue in the design of SONET SHR. Recently, most of the research on load balancing problem have been concentrated on th...

Generalized Multi-Protocol Label Switching (GMPLS) is a suite of protocol extensions to MPLS to make it generally applicable, to include, for example, control of non packet-based switching, and particularly, optical switching. One consideration is to use GMPLS protocols to upgrade the control plane of optical transport networks. This document illustrates this process by describing those extensi...

For efficient and very high capacity network for Telecommunication and Data services the SONET/SDH network is used. The Service providers are keenly interested to find automatic ways of commissioning the channels associated with the SONET/SDH. The TDMA technology is used in the SONET/SDH network by which the High speed data communication and telecommunication traffic is handled. Due to very hig...