Rev BMarch 2004 The ABC Service as a Research Infrastructure Rajesh Mishra Per Johansson Cahit Akin Salih Ergut

Rev BMarch ASP Always Best Connected - ABC WLAN, LAN GPRS/UMTS cdma2000 DSL, Cable TV access operator for a user, who wants to connect to a service, to be able to choose accesses and devices in a way that best suits his or her needs, and to change when something better becomes available PAN Bluetooth ISP corporation

Rev BMarch Intention with the ABC project at UCSD Spark research in a multi-access environment –Find new applications or be utilized in exisiting applications –Functionality to priovide adaptive behaviour –New network multiaccess mechanisms –..... Provide an experimental multi-access infrastructure –”Interface” existing research projects –Modify ABC to fit different research projects –Evolution of new ABC functionlity/capabilies

Rev BMarch ABC Architecture  what we have today Cellular Data WLAN LAN IP Transit “ABC Client” “Content&Apps Network” “Service Network” “ABC Server” Network Computing Resources Cellular WLAN LAN Ethernet

Rev BMarch ABC Architecture: Mobile IP for mobility mgmt application server terminal (laptop/PDA) ABC service network profile server AAA server user profile: operator’s information about user personal preferences: for choice of access etc. network characteristics: bandwidth, cost, QoS, operator,... terminal capabilities: screen size, processing capacity,... access wizard: support for access selection link manager: access discovery access manager: access selection access wizard agent GUI Mobile IP client application Mobile IP Foreign Agent Mobile IP Home Agent

Rev BMarch access discovery access selection AAA support mobility management profile handling content adaptation ABC Client Network Service Domain Access Network Domain what accesses are currently available? connectivity to service? what access to choose; what is “best”? user/terminal/network-based solution one or multiple accesses in parallel session continuity, session transfer support for real-time services mobility support authentication, authorization, accounting accesses, services...  single logon applications adapting to access & device personal profiles for ABC access selection & content adaptation ABC functional components

Rev BMarch ABC Research setting at UCSD/UCI Cellular Network Service Provider WLAN Network Service Provider Cellular Access Network Operator WLAN Network Access Operator ABC Service 1 WLAN Network Access Operator ”Business Agreement” ”Business Agreement” ABC User ”Business Agreements” UCSD UCI Roma UCSD Ericsson CDMA Network Cal(IT) 2 Researcher ABC Service 2 ”Business Agreement”

Rev BMarch ABC Business Role Example Cellular Network Service Provider WLAN Network Service Provider Cellular Access Network Operator WLAN Network Access Operator ABC Service WLAN Network Access Operator Business Agreement Business Agreement ABC User Business Agreements UCSD UCI Starbucks LAX Boingo Verizon Cal(IT) 2 Faculty

Rev BMarch ABC MANET ABC MANET ABC MANETS Next Step: Ad-hoc network interconnectivity – ABC MANETs MANETs interworking with ABC connectivity Discover and select external, access capable ad-hoc nodes Cellular WLAN LAN IP Transit “Content&Apps Network” “Service Network” “ABC Server” Network Computing Resources Cellular WLAN LAN

Rev BMarch access discovery access selection AAA support mobility management profile handling content adaptation ABC MANET Network Service Domain ABC MANET Functionality Access Network Domain what accesses are currently available? connectivity to service? what access to choose; what is “best”? user/terminal/network-based solution one or multiple accesses in parallel session continuity, session transfer support for real-time services MANET mobility support authentication, authorization, accounting accesses, services...  single logon applications adapting to access & device personal profiles for ABC access selection & content adaptation ABC MANET functional components

Rev BMarch Ad-hoc routing and ”Legacy” routing Ad hoc IP routing Ad-hoc/Legacy IP Routing Interworking IP Transit Cellular WLAN LAN Legacy IP Routing Interworking between MANET and legacy IP routing Alt. 1 Gateway nodes offer external routes ”within” the MANET routing Alt. 2 Overlay of tunnels to gateway nodes

Rev BMarch Alt. 1 Nodes search external routes within MANET (e.g. via flooding) Gateways respond with routes (if they have routes to external gateway) Nodes select route(s) based on responses Changes in routing protocol needed to identify external access network ABC needs to be integrated with MANET Mobility (finding new gateways) handled by MANET routing Alt. 2 Nodes search for gateways as an ”application” using MANET Gateways respond with access newtork info Nodes set up tunnels to the gateways using MANET as infrastructure Need no changes to the MANET protocol Mobility handled as overlay e.g. using Mobile IP

Rev BMarch WLAN LAN IP Transit Cellular UMTS WLAN CDMA2000 LAN WLAN Internet Corporate Intranet PAN Connectivity IP Functions Applications = Generic ABC MANET Device Network interfaces ABC MANET Connectivity IP Functions Applications ABC MANET Connectivity IP Functions Applications ABC MANET Connectivity IP Functions Applications ABC MANET Ad-hoc connectivity ABC MANET Gateway Devices ABC MANET Connectivity IP Functions Applications ABC Service Network ABC MANET – Mobile Connectivity FA HA FA Proxy FA FA Proxy HA Corporate ABC server Example: Mobile IP ABC MANET Connectivity IP Functions Applications

Rev BMarch ABC Demo Content Session management –Throughput/delay graph Bandwidth aggregation –Show the TCP splitting over multiple CDMA networks Network based access control (Operator’s View) –Web based access control –Voice activated access control Video adaptation –Over multiple interfaces

Rev BMarch Test Set-up Ethernet Adhoc Network Adhoc Network cdma2000 1x operator 1 cdma2000 1x operator 2 GPRS Edge WLAN Web Server IP Network IP Network

Rev BMarch Network Based Access Control Client Access Wizard Client Access Wizard Server Web Server IP Network IP Network Profile DB

Rev BMarch ABC Control Panel

Rev BMarch Summary ABC enabling research combining wireless access networks –Today WLAN, GPRS and CDMA2000 ABC functionality may be extended to MANETs –How should that be done? –Simultaneous use of access networks for BW aggregation? MANETs may be interconnected via the ABC MANET infrastructure