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Cyber Space vs. Ubiquitous Space

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Presentation on theme: "Cyber Space vs. Ubiquitous Space"— Presentation transcript:

1 Cyber Space vs. Ubiquitous Space

2 Internet Space and Virtual Reality
Gates to Dive into Internet Space Real World user

3 Ubiquitous Space and Augmented Reality
Cyber Space Real World user Augmented Reality Ubiquitous Space Bridge to connect Cyber space and real world

4 Augmented Reality ?

5 Example of Augmented Reality: Primitive One
[Bauhaus Institute]

6 Example of Augmented Reality: Overlapping Two Realities
[Univ. Rochester] [INRIA]

7 Example of Augmented Reality: Pedestrian Information

8 Example: Scenario Retrieve Context Information Detection by Sensor
Provide Augmented Reality

9 Interaction with the real world is substantial
Context Awareness Augmented Reality Interaction with the real world is substantial Context-Awareness Real World Device A Keyword of Ubiquitous Computing

10 (Information-Driven)
Context-Awareness Static Context (Information-Driven) Dynamic Context (Sensor-Driven) Context Internal Context

11 Spatial Context-Awareness (Geographic Awareness)
Euclidean Space Static Context Dynamic Context Road Network Space Geographic Information Geo-Sensor Indoor Space Spatial Context Seamless Space My Status + Location, Speed, Orientation Internal Context

12 Issues in Ubiquitous Computing
Tiny System Scalability Small Size Memory Large number of mobile devices Small CPU Energy Problem Small Screen Communication Heterogeneity Limited Bandwidth Platform Limited Mobility Contents

13 Communication Infrastructure
Wireless Communication : Fundamental Requirement NOT Only ONE Communication : Convergence of Communication CDMA : Currently Available WiBro (Wireless Broadband) : Between CDMA and WLAN WLAN : High Speed, but Limited Area DMB : Broadcasting, One Way Communication MANET (Mobile Ad-Hoc Network) : Without Network Infrastructure Bluetooth : High Speed, but Very Limited Area

14 Communication Infrastructure
Requirements Mobility : WLAN (very limited), CDMA (>250 Km/h), WiBro (>60 Km/h ?) Bandwidth : Very Large Number of Messages due to Massive Parallelism WLAN (>1 Mbps), CDMA( 100Kbps), WiBro ( 1Mbps) Covergence Coverage : WLAN (100m), CDMA (1~3Km), WiBro(1Km) IPv6 and Ad-Hoc Network Cheap Price Security

15 But Not Like This !


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