IEEE First Workshop on Distributed Antenna Systems

for Broadband Mobile Communication

in conjunction with IEEE GLOBECOM 2011, Houston, TX, USA

Workshop Date: Μonday, December 5th, 2011

We wish to thank everyone who contributed to the workshop, including the Globecom workshop chairs, the advising committee, the TPC members, the reviewers, the keynote speakers, the panel speakers and the session chairs. We also want to thank the authors for their interesting presentations and all attendees for their questions to our keynote speakers and panelists and to the presenters.


Our keynote and panel speakers have kindly offered to make their presentations available on this website. Please check the workshop program section. We hope to have all presentations online soon.


Sincerely,

The workshop co-chairs.


As the growth of wireless services continues, improved and new system architectures are being investigated in order to accommodate the increasing user demand for high data rates, ease of scalability and reliable service. One such architecture is Distributed Antenna Systems (DASs). In a DAS, antennas are distributed in a geographic area to decrease the average distance from the user terminals, which leads to reduced transmission power and improved communication. Owing to recent advances in communication theory and signal processing, the DAS paradigm becomes even more interesting as it offers opportunities for antenna coordination. This can lead to improved flexibility, more efficient use of the available spectrum, higher robustness, and easier scalability. For this reason DASs could be used in future systems. For example, Coordinated Multi-Point (CoMP) transmission and reception among multiple cells, which is being discussed actively in 3GPP LTE-Advanced standards, can be viewed as a DAS. On the other hand, the improved performance comes at the expense of complexity and additional signaling that is required for coordination, and of cost of the infrastructure needed to support a DAS. For best performance, it is desirable that all received signals be relayed to a Central Unit that performs all processing. However, this might be complex, and high data-rate and reliable connections are needed between the Central Unit and the distributed antennas. The complexity can be reduced by moving some functionality to the antennas, whereas the cost can be lowered by conveying less information to the Central Unit. Clearly, this has an impact on performance.


This workshop aims to bring together state-of-the-art research on Distributed Antenna Systems and provide a forum for researchers and system designers working on DAS. The goal is to identify candidate transport media used to connect the distributed antennas, architectures and algorithms; evaluate their feasibility in terms of complexity and cost; investigate what changes may be needed in standards to support DAS functionality, apply coordination technologies over DASs and enable coexistence or collaboration with alternative approaches such as femtocells; and compare the requirements and the performance of architectures and algorithms for DASs to existing systems and alternative approaches.


The focus of the workshop will be in the Physical and the MAC layer and the implementation of the transport medium that provides connectivity to the antennas. Possible topics include:


  1. Implementation of the transport medium, modeling, evaluation and compensation of its  effects on DASs.

  2. Radio over Fiber as a transport technique. Latest advances, implementation challenges and competitive advantages.

  3. Implementations of reduced complexity and cost, such as designs where part of the system functionality remains at the antennas.

  4. DASs with mixed transport media of different bandwidth/capabilities (such as fiber, air, copper).

  5. Multiuser and distributed signal processing techniques for DASs.

  6. Implementation of Coordinated Multi-Point transmission/reception.

  7. Interference avoidance and mitigation techniques.

  8. Synchronization

  9. Spectrum management and resource allocation.

  10. Design of the MAC layer to support DAS functionality.

  11. Quantification of coordination overhead and its impact on the overall DAS performance.

  12. Theoretical or experimental evaluation of the performance, capacity, energy efficiency and coverage improvement achieved by DASs and comparison to existing systems or alternative architectures.

  13. Coexistence and/or collaboration with legacy or other systems, including cognitive techniques.

  14. Convergence with networks carrying baseband wired services, integrated architectures.

  15. Demonstration of prototypes of DASs.

Important Dates

         Full Paper Submission Deadline:                                 19 July 2011
-          Acceptance Notification:                                          15 August 2011
-          Camera-Ready Submission:                                    31 August 2011
-          Workshop Date:                                                    5 December 2011