qos in wireless networkseun/wireless.pdf · 2019-11-16 · qos in wireless networks-nrl 2001...
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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