1. Wireless Networks of Devices
William Adjie-Winoto, Anit Chakraborty, Jeremy Lilley, Elliot Schwartz
Hari Balakrishnan, John Guttag, Minoru Katayama (NTT)
Routers
Web servers
Clients
Networks today
Future
Devices, sensors, actuators
Mobile services and users
Wireless
Spontaneous collaborations
Home networks
Heterogeneous services, audio,
video, conferencing applications
WIND research areas
Configuration: Automatic network formation
Routing: Mobile ad hoc routing protocols
Discovery: Intentional naming system
Adaptation: Congestion manager
Security: private location support system
Expressiveness  Intentional names Applications know what, not where
Responsiveness  Late binding Integrate name resolution and message routing Robustness  Decentralized, cooperating resolvers
Easy configuration  Self-configuring overlay network protocol
Intentional Naming System
Name resolver
Self-configuring overlay
network of resolvers
Client
Service
[building = ne-43
[room = 510]]
[entity = camera]
Routing protocol
with triggered update
mobility
Late binding achieves responsiveness
[vspace = lcs.mit.edu/camera]
[building = ne43
[room = 510]]
[resolution=800x600]
[access = public]
[status = ready]
Descriptive service advertisements
Intentional names are expressive
[vspace = mit.edu/thermometer]
[floor = 5
[room = *]]
[temperature < 600F]
data
Query expressions
Active map application for navigation and browsing
Real-time
conferencing
Name resolver
[building = ne-43
[room = 510]]
[entity = camera]
Forward along
spanning tree
Intentional multicast for group communication
[room = *]]
flag = ALL
data
Name resolver
[building = ne-43
[room = *]]
[entity = camera]
flag = ANY
data
[room = 510]]
[room = 504]]
Forward to best
location
Intentional anycast for unicast discovery