The widespread diffusion of portable devices with multiple wireless interfaces, e.g., UMTS/GPRS, IEEE 802.11, and/or Bluetooth, is enabling multi-homing and multi-channel scenarios, possibly made up by multi-hop cooperative paths towards the traditional Internet. We claim that there is the need for novel middleware, aware of innovative context information, to select and dynamically re-configure the most suitable interfaces and connectivity providers for each client application. In particular, novel middleware should effectively exploit concise and light-weight context indicators about expected node mobility, path throughput, and energy availability to take proper connectivity management decisions at session startup and to promptly re-configure them with limited overhead at runtime. Here, we present how our MMHC middleware originally uses mobility/throughput/energy context to manage connectivity opportunities effectively, i) by filter-ing out connectivity opportunities that are estimated as insufficiently reliable, and ii) by carefully evaluating the residual candidates in two distinguished local/global man-agement phases to achieve the most suitable tradeoff be-tween promptness and management costs.
The widespread diffusion of portable devices with multiple wireless interfaces, e.g., UMTS/GPRS, IEEE 802.11, and/or Bluetooth, is enabling multi-homing and multi-channel scenarios, possibly made up by multi-hop cooperative paths towards the traditional Internet. We claim that there is the need for novel middleware, aware of innovative context information, to select and dynamically re-configure the most suitable interfaces and connectivity providers for each client application. In particular, novel middleware should effectively exploit concise and lightweight context indicators about expected node mobilirty, path throughput, and energy availability to take proper connectivity management decisions at session startup and to promptly re-configure them with limited overhead at runtime. Here, we present how our MMHC middleware originally uses mobility/throughput/energy context to manage connectivity opportunities effectively, i) by filtering out connectivity opportunities that are estimated...
Multi-hop Multi-path Cooperative Connectivity guided by Mobility, Throughput, and Energy Awareness: a Middleware Approach
GIANNELLI, Carlo
2009
Abstract
The widespread diffusion of portable devices with multiple wireless interfaces, e.g., UMTS/GPRS, IEEE 802.11, and/or Bluetooth, is enabling multi-homing and multi-channel scenarios, possibly made up by multi-hop cooperative paths towards the traditional Internet. We claim that there is the need for novel middleware, aware of innovative context information, to select and dynamically re-configure the most suitable interfaces and connectivity providers for each client application. In particular, novel middleware should effectively exploit concise and lightweight context indicators about expected node mobilirty, path throughput, and energy availability to take proper connectivity management decisions at session startup and to promptly re-configure them with limited overhead at runtime. Here, we present how our MMHC middleware originally uses mobility/throughput/energy context to manage connectivity opportunities effectively, i) by filtering out connectivity opportunities that are estimated...I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
