This document presents Orchestrator, an active resource orchestration framework designed for a pan-scale, sensor-rich mobile computing platform, enabling support for context-aware applications despite scarce resources. It addresses the challenges of simultaneous application operations and resource contention by coordinating resource use actively and preparing alternative plans based on real-time availability. A prototype demonstrates its efficiency and effectiveness in sustaining application support and optimizing resource utilization.

1. An Active Resource Orchestration Framework for PAN-Scale,
Sensor-Rich Environments
Abstract
In this paper, we present Orchestrator, an active resource orchestration framework for a PAN-scale
sensor-rich mobile computing platform. Incorporating diverse sensing devices connected to
a mobile phone, the platform will serve as a common base to accommodate personal context-aware
applications. A major challenge for the platform is to simultaneously support concurrent
applications requiring continuous and complex context processing, with highly scarce and
dynamic resources. To address the challenge, we build Orchestrator, which actively coordinates
applications' resource uses over the distributed mobile and sensor devices. As a key approach, it
adopts an active resource use orchestration, which prepares multiple alternative plans for
application requests and selectively applies them according to resource availability and demands
at runtime. Through the selection, it resolves resource contention among applications and helps
them efficiently share resources. With such system- level supports, applications become capable
of providing long-running services under dynamic circumstances with scarce resources. Also, the
platform can host a number of applications stably, exploiting its full resource capacity. We build
an Orchestrator prototype on off-the-shelf mobile devices and sensor motes and show its
effectiveness in terms of application supportability and resource use efficiency.
Existing System:
we present Orchestrator, an active resource orchestration framework for a PAN-scale sensor-rich
mobile computing platform. Incorporating diverse sensing devices connected to a mobile phone,
the platform will serve as a common base to accommodate personal context-aware applications.
A major challenge for the platform is to simultaneously support concurrent applications requiring
continuous and complex context processing, with highly scarce and dynamic resources.
Proposed System:
In this paper ,we build Orchestrator, which actively coordinates applications' resource uses over
the distributed mobile and sensor devices. As a key approach, it adopts an active resource use
orchestration, which prepares multiple alternative plans for application requests and selectively
applies them according to resource availability and demands at runtime. Through the selection, it
resolves resource contention among applications and helps them efficiently share resources. With
such system-level supports, applications become capable of providing long-running services
under dynamic circumstances with scarce resources. Also, the platform can host a number of

2. applications stably, exploiting its full resource capacity. We build an Orchestrator prototype on
off-the-shelf mobile devices and sensor motes and show its effectiveness in terms of application
supportability and resource use efficiency.
System Specification
Hardware Requirements:
• System : Pentium IV 2.4 GHz.
• Hard Disk : 40 GB.
• Floppy Drive : 1.44 Mb.
• Monitor : 14’ Colour Monitor.
• Mouse : Optical Mouse.
• Ram : 512 Mb.
Software Requirements:
• Operating system : Windows 7.
• Coding Language : ASP.Net with C#