Second International Workshop Networking with Ultra Wide Band

Workshop on Ultra Wide Band for Sensor Networks

Rome, July 4-6, 2005


Ultra Wide Band radio is, in principle, a physical transmission technique suitable for all kinds of applications. Given the strong power emission constraints imposed by the regulatory bodies in the United States but likely to be adopted by other countries as well UWB is emerging as a particularly appealing transmission technique for applications requiring either high bit rates over short ranges or low bit rates over medium to long ranges.
A recent release of the IEEE 802.15.4 standard for low-rate WPANs has increased attention for the low-bit-rate case. The low-bit-rate, medium- to long-range case applies to long-range sensor networks such as indoor-outdoor distributed surveillance systems; nonreal-time data applications like e-mail and instant messaging; and in general all data transfers compatible with a transmission rate in the order of 1 Mbit/second over several tens of meters.
The scenarios of applications mentioned above refer to networks that commonly adopt the self-organizing principle that is, distributed networks. Examples of these networks are ad hoc and sensor networks, such as groups of wireless terminals located in a limited-size geographical area, communicating in an infrastructure-free fashion, and without any central coordinating unit or base station. Communication routes may be formed by multiple hops to extend coverage.
Ultra Wide Band's typical features, such as the need for operating at low power vs. a rather accurate ranging capability, may have a significant impact on the design of the MAC and of routing algorithms and strategies. The optimization of MAC and network modules in ad hoc networks is a topic that currently occupies research attention worldwide.
The impulse-radio (IR) principle, in particular, may boost innovation in designing efficient algorithms for resource sharing and management because of the impulsive nature of the transmission. IR intrinsically partitions time in a peculiar way, because of the short and limited duration of the pulses. The spectrum of the IR signal is usually shaped by encoding data symbols using time-hopping pseudorandom sequences that may also serve as users' signatures, and ensuring access to the medium by multiple users. This resource-partitioning scheme is called time-hopping multiple access (THMA).
MUI in continuous-transmission vs. IR systems may substantially differ in nature, especially when in IR the number of pulses in the air is not sufficiently large to fill up the time dimension. Examples of those application scenarios are sensor networks that are typically characterized by low data rates and sparse topologies.

Authors are invited to submit original contributions on topics following in the above context. In particular topics of interest include (but are not limited to):

  • Transceiver architectures for UWB sensor nodes

  • Indoor and outdoor UWB channel modelling

  • Synchronization issues for low-rate UWB communications

  • Algorithms for sensor localization and tracking

  • Mobility models for networks of mobile sensors

  • Cross-layer design techniques

  • Distributed power control mechanisms

  • Distributed algorithms for resource management

  • Distributed topology control mechanisms

  • Methods and algorithms for hierarchical clustering

  • Energy-aware MAC and routing protocols

  • Location-aware MAC and routing protocols

  • Support of Quality of Service in UWB sensor networks

  • Simulation and Modelling of UWB sensor networks

  • Applications for UWB sensor networks

All accepted papers will be published in the proceedings of the workshop. Selected papers will be considered for publication in the Journal of Mobile Networks and Applications (MONET), published by Springer US. [See the Call For Papers]

Deadline for submission: February 28, 2005
Guidelines and dates for paper submission are available here.