Features:
SERIES EDITORIAL: OPTICAL COMMUNICATION AS A SOCIAL INFRASTRUCTURE OF “CHANGE”
CHALLENGES FOR GMPLS LIGHTPATH PROVISIONING IN TRANSPARENT
OPTICAL NETWORKS: WAVELENGTH CONSTRAINTS IN ROUTING AND
SIGNALING
GMPLS has introduced several enhancements to the MPLS-TE routing and signaling
control plane protocols to handle dynamic lightpath provisioning in wavelengthrouted
networks. Specifically, the GMPLS signaling protocol has been enhanced to
support two new provisioning functionalities, namely, the minimization of the setup
delay, and the setup of bidirectional connection requests. However, these GMPLS
provisioning functionalities present important deficiencies when applied to
wavelength-routed networks.
RAÜL MUÑOZ, RICARDO MARTINEZ, AND RAMON CASELLAS
SOLVING THE ROUTING AND WAVELENGTH ASSIGNMENT PROBLEM IN WDM
NETWORKS FOR FUTURE PLANNING
The author defines and analyzes the routing and wavelength assignment problem by source from www.booko.org
applying a virtual topology for both the optical network and the light paths.
A developed algorithm is introduced to solve the offline RWA problem. First the
light path requests are constrained to repeated uniform distributed traffic.
The reason is that this constraint permits study and analysis of the behavior
of the RWA problem. In addition, this constraint could be used as a benchmark
to compare different algorithms. Then the requests constraint is relaxed to be
non-uniform traffic. It is shown that the maximum number of assigned wavelengths
depends on the number of traversed links, not on the shortest path length.
TAREK HINDAM
ON THE STATE AND GUIDING PRINCIPLES OF BROADBAND IN INDIA
India, home to 1.2 billion people with a GDP growth of 9 percent, has been
experiencing flat to modest growth of broadband services in the past decade despite
the fact that the country continues to add 8–10 million cellular connections per my booko.org,my favourite website
month. The authors examine the reasons that affect the high cost of broadband in
India and the steps required to reduce the cost. They argue that the usage-based
pricing model, which is used widely for billing retail customers, is hampering the
growth of local content and services. In contrast, a flat-rate pricing model would
spur demand for broadband services and enable content providers to target the local
and emerging market.
ASHWIN GUMASTE, PRASAD GOKHALE, AND ASHEESH DHAR
NEXT-GENERATION PONS: A PERFORMANCE INVESTIGATION OF CANDIDATE
ARCHITECTURES FOR NEXT-GENERATION ACCESS STAGE 1
The authors present the investigation of five candidate NGA1 architectures from the
perspective of the MAC-layer bandwidth allocation, including the analysis of the
traffic characteristics of the subscribers’ applications and the criteria in mapping
them into proper transmission containers. Extensive simulations were conducted to copyright by www.booko.org
investigate and compare the performances of the five candidate NGA1 architectures.
JINGJING ZHANG, NIRWAN ANSARI, YUANQIU LUO, FRANK EFFENBERGER, AND FEI YE
PLASTIC OPTICAL FIBER TECHNOLOGY FOR RELIABLE HOME NETWORKING:
OVERVIEW AND RESULTS OF THE EU PROJECT POF-ALL
The rising performance of broadband connections for residential users, particularly in
conjunction with fiber to the home, will present a new challenge for telecom
operators in the short and medium terms: how to deliver the high bit rate digital
signals with high quality-of-service to all consumer devices scattered inside the
building of final users?
Download links:http://ifile.it/ujwlrhb/ieee.communications.2009.08.rar
booko.org my favourite website