QoS QoS in Wireless Networksin Wireless Networks- NRL 2001 Workshop -

Paik, Eun KyoungMultimedia Communications Lab.Dec. 27, 2001

NRL 2001 Workshop – Multimedia Communications Lab.

ContentsContents

?VoIP/ All IP?Wireless QoS?Naming/Addressing/Roaming?Standards?Conclusion

NRL 2001 Workshop – Multimedia Communications Lab.

VoIPVoIP/ All IP/ All IP

?Voice/Video over IP– Stream Control Transmission Protocol

(SCTP)?Provides all of the TCP features plus?Multi-streaming – supports independent

transport and delivery of multiple streams between hosts

?Multihoming – supports more than one path between hosts for resilience

?All IP Networks

NRL 2001 Workshop – Multimedia Communications Lab.

Wireless Wireless QoS QoS (I)(I)

?QoS for Real-Time Multimedia Communications over Wireless Networks– Fast Handoff

– Low Latency

– Context Transfer

NRL 2001 Workshop – Multimedia Communications Lab.

Wireless Wireless QoS QoS (II)(II)

?QoS for IP-based Wireless Networks– IP QoS Emulation– DiffServ, IntServ– MPLS?GATech. BWN Lab. : E2E IP QoS in NGI

?End-to-end QoS?MIT Migrate Prj. : TCP layer E2E QoS?MIT CM Prj. : E2E Congestion Manager

NRL 2001 Workshop – Multimedia Communications Lab.

Naming/Addressing/RoamingNaming/Addressing/Roaming

? IPv6 Addressing?Naming?MIT INS(Intentional Naming System) prj.

?Wireless Host Roaming between Heterogeneous Wireless Access Networks– between WLANs and Cellular systems

NRL 2001 Workshop – Multimedia Communications Lab.

Standards : IETF MobileStandards : IETF Mobile--IPIP

?MIPv6 Security– Mobile IPv6 use of Routing Header

– Mobile IPv6 use of Home Address Option

– Protecting the BU.

– Piggybacking

– Key Distribution protocol between MN and CN

NRL 2001 Workshop – Multimedia Communications Lab.

Standards : IETF SEOMOBYStandards : IETF SEOMOBY

?MIP Scaling?Registration Message Authentication?MN-HA Binding?Mobile’s Context Transfer across FA?Best FA Selection during Handoff

NRL 2001 Workshop – Multimedia Communications Lab.

Standards: IETF Standards: IETF MONETMONET

?Routing?Addressing?Security/Access control?Nested mobility

– How do we limit this?

– How can we define what is within reasonable limits ?

NRL 2001 Workshop – Multimedia Communications Lab.

Standards : IPv6 Forum Standards : IPv6 Forum

?Autoconfiguration– No FA in MIPv6

?Destination Option– Context transfer, Binding update

?Multihoming– Smooth handoff

NRL 2001 Workshop – Multimedia Communications Lab.

Standards : 3GPP/3GPP2Standards : 3GPP/3GPP2

?Movement towards All IP

NRL 2001 Workshop – Multimedia Communications Lab.

ConclusionConclusion

?Voice/Video over IP?All IP

?Wireless QoS?E2E QoS

?Naming/Addressing/Roaming?Global Mobility