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Wireless Communication in GBit/s range

EUWB - Coexisting Short Range Radio by AdvancEd Ultra-WideBand Radio Technology

 

Introduction:

Ultra-Wideband radio technology (UWB-RT) enables short range wireless communications with data rates ranging up to Gigabit per second as well as precise real-time location tracking inherently due to UWB’s unique feature of ultra-wide radio frequency band allocation. Widespread application of this innovative wireless technology will facilitate growth of a number of market segments – all different, but all enabled by the unique features of UWB-RT being highly scalable with regard to complexity, range, costs and throughput as well as location precision accuracy.

Motivation

Major European industry sectors are convinced of the huge advantages of UWB-RT and consequently request the introduction of UWB based radio services in their areas. An industry-led initiative of 20 major industrial and excellent academic organizations from Europe and Israel will effectively leverage and significantly enhance the scientific knowledge base in the advanced Ultra-Wideband Radio Technology (UWB-RT) and will provide sophisticated new applications enabled by UWB and highly demanded in several European key industrial sectors such as home entertainment CE, automotive, public transport, and cellular network. Following this request an industry-led initiative of 21 major industrial and excellent academic partners from Europe and Israel was formed. The resulting EUWB project will effectively leverage and significantly enhance the scientific knowledge base in the advanced Ultra-Wideband Radio Technology providing sophisticated new applications enabled by UWB and highly demanded in several European key industrial sectors such as home entertainment, automotive, public transport, and cellular network. The well known Edholm’s law of bandwidth confirms an almost exponential increase of data rates in the last two decades for wireless and wired communication systems. Assuming this development holds true also for the future evolution of short range communication systems, we can expect peak data rates of up to 10 GBit/s over a distance of a very few meters until 2015. Such high data rates enable multimedia applications like very high quality video distribution and also high speed data exchange between mobile devices, e.g. mobile phones, offering storage capacities in excess of 100 GB already after 2010. Therefore, add-on technologies especially for boosting data-rates, but also for enhancing coverage and for improving link quality are required to fulfill the demand of future wireless short-range communications. In the EUWB-project the main focus is on the combination of Multiband-Orthogonal-Frequency-Division-Multiplexing (MB-OFDM) based UWB and multiple antenna systems at the transmitter and the receiver side, also known as Multiple-Input-Multiple-Output-systems (MIMO) for different complex scenarios like public transportation, automotive environment, and home entertainment. The combination of both techniques enables very high data rates with a maximum of spectral efficiency and reliability for these applications

Challenges

The aforementioned complex scenarios will be used to define new system concepts and practical requirements. Measurements of radio channels shall reflect the identified generic measurement scenarios and will be performed with a MIMO-UWB real-time sounder. Consequently, a succeeding part of this task is the research on and definition of a set of (time-variant) channel models describing the spatial and temporal behavior and correlation in MIMO-UWB for the different scenarios. Further research areas are:

 

• The ultimate range extension obtainable with MIMO-UWB for the applications of interest

• The role of channel state information on the MIMO-UWB capacity, including information on positions and angle of arrivals

• The ultimate increase in interference rejection via spatial separation/beam forming techniques obtainable with MIMO-UWB in the multi-user scenario

 

Within the project a MIMO-UWB test-bed for research and evaluation of algorithms was set up to provide an important tool for access to the real MIMO-UWB channel and verification of model-based algorithms and specific system design. MIMO-UWB signal processing algorithms will be implemented on FPGA hardware and integrated in the test-bed for resource evaluation and validation of certain multiple antenna solutions via prototyping.

Research Highlights

The research highlights of the working area “MIMO-UWB” within the EUWB-project are the following:

• Provision of a MIMO-UWB test-bed for evaluation and verification of specific multiple antenna algorithms, system designs and studying of multi-user and interfering scenarios by providing access to the real MIMO channel

• Development of application-aware algorithms to enable link quality improvement, range extension and multi-user enhancements

• Development of implementation-aware algorithms and system design to solve the challenges arising from various application-oriented solutions

• Resource evaluation and validation of certain multiple antenna solutions via prototyping approaches

 

Potential applications & future issues

Within the work area of the EUWB-project the MIMO-UWB technology will be applied to complex applications as public transportation, automotive environment and home entertainment. Further the localization of tags in the urban traffic transport has been identified as a future application of MIMO-UWB. Considerable industrial partners within the EUWB-project will push the implementation of MIMO-UWB technology in future industrial products.

 

Information 

Project Type:  EU-Project, seventh framework program

Project duration: 04/2008 – 03/2011

Project Research Areas:

  • MIMO-UWB
  • Channel measurements and modeling
  • Test-bed

Project manager:

Selected publications:

  • B. Tau Sieskul, C. Kupferschmidt, and T. Kaiser (2009): "Algebraic inequalities for MIMO-UWB with antenna element time delays: Uncorrelated fading," in Proc. 2009 IEEE International Conference on Ultra-Wideband (ICUWB 2009), Vancouver, Canada, September 9-11, 2009, pp. 798-803.
  • Claus Kupferschmidt, Emil Dimitrov, Thomas Kaiser (2009): Multiple Antenna UWB Systems WP3 of the EUWB-Project, The 2009 International Conference on Advanced Technologies for Communications, Hai Phong, Vietnam, 12-14 October 2009
  • Emil Dimitrov and Thomas Kaiser: Advanced MIMO VHDR MB-OFDM Approaches, The 2008 IEEE Int. Conf. on Ultra-Wideband, ICUWB 2008, Hannover, September 10-12, 2008

Summary

The EUWB-project is focused on the application of UWB-RT for future complex scenarios. From this technology peak data rates of up to 10 GBit/s can be expected, which will enable multimedia applications like very high quality video distribution and high speed data exchange between mobile devices. New add-on technologies especially for boosting data-rates or for enhancing coverage and improving link quality will be developed to fulfill the demand of future wireless short-range communications.