Collaborative Signal Processing

January 14-16, 2001
Xerox PARC
Palo Alto, CA

Introduction           Agenda       Participants Registered


This workshop aims to bring together researchers from distributed signal processing and low-power wireless sensor networks to identify and address challenge problems in collaborative signal processing (CSP). Recent advances in MEMS, wireless networking, and distributed signal processing have enabled a new generation of sensor networks. However, unlike more traditional centralized ATR systems, distributed sensor nets are characterized by limited battery power, frequent node attrition, and variable data and communication quality. To scale up to more realistic battlefield tracking and classification applications involving multiple targets, heterogeneous sensing modalities, and non-uniform spatio-temporal scales, these systems have to rely primarily on collaboration among distributed sensors to significantly improve tracking accuracy and reduce detection latency. This workshop will take a systemic approach to investigate key issues such as distributed signal processing, progressive accuracy, power management, spatial resolution, and high-level information processing for sensor nets.

In particular, here is a set of questions we would like the workshop participants to address:

  1. Whether or not good applications can be handled in a distributed way with unreliable links;
  2. What is the class of applications suitable for this?
  3. For specific applications to include tracking, classification, identification, what are the system parameters, i.e., for a given latency and precision, how many MIPs are required, how much memory, how much BW, and how many nodes of random or chosen placement, and of course power requirements given an operational lifetime, hours, days etc.?
  4. Given the embedding (and power efficiency) trend curves, what are the ones that will be ready for transition/procurement in 5 years, 10 years, and 20 years?
On the second day, there will be a focus working group session for the related SensIT projects to identify and address program specific challenges and actionable items.

Thank you for helping make this workshop a success!

Feng Zhao,                        Sri Kumar
Xerox PARC                     DARPA