2. Users expectation towards
Next Generation
Users expectation toward the next generation
service is not just to provide a large bandwidth.
They would rather expect to maintain or enhance
their overall living environment, such as safety,
security, amenity and feeling ease with the
surrounding environment or within their community .
They are not aware which communication
method they use .
3. Introduction to Ubiquitous network
Ubiquitous network is a context-aware
network of computing devices which are
connected at any place, anytime and with
any object
Ubiquitous network allows all users to access
and exchange information of any kind freely
at anytime, from anywhere, and from any
appliance through the use of broadband and
mobile access.
Combines optical communication, mobile
and consumer electronics into one network
4. What is Ubiquitous Networking ?
Ubiquitous : Omnipresence
Computing Everywhere
Content Everywhere
Connectivity Everywhere
Seamless Connection and Service
Location, Context & Preference-Aware Service
5. The role of ubiquitous network
The role of ubiquitous network should seek for fulfilling
such user needs in corporation with use terminal and
service platform.
Keyword is “context awareness” for a user.
Context means user’s general situation such as user’s
location, user’s access status, etc.
By always keeping aware of user’s context, a system
can offer the best service that he/she wants.
8. Background and assumptions
Third generation cellular system is becoming
dominant and person-to-person call is mostly made by
cellular.
Fixed broadband services will come into home
environment widely. Users will enjoy broadband access
both at office and home.
Not only person-to-person communications, but other
communications style such as machine-to-machine
communications are gradually becoming popular.
9. Enablers
9
The following items are several possible enablers for
ubiquitous networking paradigm;
Advent of high-end mobiles which support 3G capability,
location, middleware environment, sensors, etc.
RFID technology with which man-to-environment
interactions much easier.
Ontology which deals with objects on the Web more
semantic way than ever.
Hi-end mobiles Ontology
#book
“the NGN”
ITU-T SG13
name
10.
11. Network Routing and Control
Support for mobility
Network N Service control
Network self configuration
Adaptive service control
Context awareness
Profile Management
Support for collaboration
Issues in Ubiquitous Network
Management
12. Challenges in Ubiquitous Network
Management
The main challenges in ubiquitous network management are :
Seamless connectivity
Context awareness
Resource management
Device management
14. Challenges in context awareness
Management
Filtering
Context – composition
Adaptation
Discovery of context
Storage of context
Access control on context
15. Challenges in Resource
Management
Resource Dissemination: Information about
machine resources
Resource Discovery :Mechanism by which
applications find resource information
Scheduling Resources: Grids (Large scale
network computing system) decide which
resources are assigned to which jobs
17. Flexible service platform is the key
From the ubiquitous service point of view, an
ubiquitous network should have:
Flexible service platform execution
environment with common API,
Super high performance switching and
routing capability,
Broadband service capability,
Relevant adaptive routing mechanism.