MOCCA: Summary of think-tank
Focus is on Asian developing market, particularly India and China.
Debate between whether investment into existing technology in rural sector of mobile market will have better returns than further urban investment into new technology.
Debate on whether voice or data services are more important in rural areas.
Debate on what a rural area is? Low density population?
Mobile Handover Strategies, A. Slingerland
Mobility management scheme supports multiple strategies and smartly selects best strategy which will improve QoS
Application requirements; latency, loss, re-ordering
Context issues; link layer hints, network support nodes, load
Hierarchical Mobile IP
Static handover is sub-optimal
Distributed QoS control Arch for latency sensitive applications, Mahbubul Alam
QoS, multi-layer challenge
Basic Challengers: BW, Delay and Jitter
Arch challenges: Scalabity, Resource management, Robustness against traffic fluctuations, Billing, Security
Seamless security needs to be included in design along with QoS.
Security can provide QoS, e.g. ipsec, however not scalable
QoS routing policy
M. Canales (mcanales@unizar.es)
Shortest path not necessarily QoS, resource utilisation at MAC layer more important
New QoS metric based on Mac resources
Distruitbuted
Basis: AOMDV
ADHOC MAC protocol
Destination selects best path after receiving multipath info / metric
Simulation: Event driven simulator in c++ ( Adhoc MAC + modified aomdv+path bandwidth calc algorithm)
Best effort strategy: AODV
QoS metric based strategy QoS Routing, AOMDV
Distributed Admission Control Algorithm
IEEE 802.11e EDCA QoS Concept
QoS relate to RT and non-Rt services, which may have contrasting delays and reliability requirements, flexible QoS management required.
Proposed system based on ITU-R
Vertical and horizontal handover
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