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CCITT standardization of network node interface of synchronous digital hierarchy
The nine-row-based frame structure and the virtual container concept, which are the main features of the NNI, are introduced and the future application of asynchronous transfer mode (ATM) is discussed.
In-service monitoring methods-better ways to assure service quality of digital transmission
- N. Sato, K. Asatani, H. Murakami, R. E. Mallon, Susan R. Hughes, Thomas L. Graff
- Business, Computer ScienceIEEE J. Sel. Areas Commun.
- 1 February 1994
This paper focuses on how transmission error performance can be evaluated by parameters such as errored seconds (ES) and severely erroredseconds (SES), under in-service conditions, and shows the concept of In-Service Monitoring (ISM).
High-speed optical pulse transmission at 1.29-µm wavelength using low-loss single-mode fibers
Optical-fiber transmission experiments in the 1.3-μm wavelength region are reported. GaInAsP/InP double-heterostructure semiconductor laser emitting at 1.293 μm is modulated directly in…
Standardization on multimedia communications: computer-telephony-integration-related issues
- K. Asatani
- Computer ScienceIEEE Commun. Mag.
- 1 July 1998
A brief historical sketch and the state of the art of CTI-related standards and specifications are described, which are still being developed.
Introduction to ATM Networks and B-ISDN
Proactive Handover Scheme Based on Forwarding Router Discovery for Mobile IP Networks
- Takeshi Takahashi, K. Asatani, J. Harju, H. Tominaga
- Business, Computer ScienceIEICE Trans. Commun.
- 1 July 2005
This paper proposes a new scheme that minimizes the redundant routing during the process of inter-domain handover by utilizing forwarding routers for each correspondent node by strategically locating forwarding routers next to the router that has peering to another domain.
A Review of Broad-Band Fiber System Activity in Japan
This paper reviews field trials of fiber optic broad-band systems in Japan, focusing on subscriber loop system technology.
Analyses of LED Nonlinear Distortions
It is shown that homostructure is superior to the others in linearity and will contribute to linear LED design.
A new VoIP call admission control scheme with use of alternate routing for low call loss probability
- T. Ezaki, H. Kawakami, K. Asatani
- Business, Computer ScienceIEEE International Conference on Communications…
- 20 June 2004
A new CAC scheme for VoIP is proposed to achieve an efficient use of network resources by adopting a dynamic routing and a routing history table and achieves better performance than the existing CAC with alternate routing scheme.