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Overview of the WIGWAMProject

WIGWAM is part of the Central Innovation Program "Mobile Internet" which is funded by the German Ministry of Education and Research (BMBF). The objective of WIGWAM is the design of a complete system for wireless communication with a maximum transmission data rate of 1 Gbit/s.

The targeted spectrum is the 5 GHz band and the extension bands 17, 24, and 60 GHz. Depending on the mobility of the user, the data rate should be scalable.

The goal is a "1 Gbit/s component" of a heterogeneous future mobile communication system. All aspects of such a system will be investigated, from the hardware platform to the protocols, which are subject to very strong requirements given the extremely high data rate of 1 Gbit/s.

The main application area is the transmission of multimedia content in so-called hot-spots (see figure below), in home scenarios, and in large offices where an enormous data rate back-off is necessary, e.g. to supply the user with short-term high data rates, or to enable a true plug-and-play without any frequency planning (particularly important in home scenarios). In order to be able to include such a high data rate air-interface into a future heterogeneous mobile communications system, also high mobility applications are covered.

The WIGWAM Project is devided into several sub-projects,namely:

  • Integration of 1 Gb/s WLAN in cellular mobile networks
  • Reconfigurable Multiband Technology (RekoMute)
  • Design and Implementation of an Ultra High-Speed WLAN: Concept, SoC-Implementation and Demonstrator (WIGWAM-IHP)
  • Architecture, implementation and technology evaluation of adaptive ultrahigh speed RF-Front Ends
  • Radio Channel Measurement and Modeling for GBit WLAN
  • PhyLayWIG
  • Medium Access and Network Protocols for Self-Organizing Gigabit Multihop Systems
  • High Speed Mobile Access for Wireless LANs
  • Radio Links With Highest Data Rates on Fast Altering Radio Channels Based on WLAN Principles
  • Wideband RF-Transmission by Base-band Calibration Techniques and Adaptive Base-band Techniques

each of them lead by one of the project partners. The TKN Group of TU Berlin is involved as a sub-contractor of Telefunken Racoms in the sub-project "Radio Links With Highest Data Rates on Fast Altering Radio Channels Based on WLAN Principles".

Radio Links With Highest Data Rates on Fast Altering Radio Channels Based on WLAN Principles

The sub-project will assure that the evolving system is suitable for communicaiton scenarios for high velocity trains and vehicles. The envisioned velocity is in between 500 km/h and 250 km/h for the latter two correspondingly. The concepts of this high-mobility support will be demonstrated using modified front-end transceiver (38 GHz) employing MIMO technology.

The focus of TU Berlin within this scope is to provide mechanisms for a seamless handover supporting QoS requirements. Special consideration is paid to the fact that the transition time of a mobile in between two adjacent radio cells (i.e. the time the mobile has connectivity to both base stations, the one it is currently connected to and the one is about to hand over its calls to) is extremely short. Thus, the provided solutions do not only apply to high-velocity scenarios with a reasonable size of the overlapping zone of two adjacent radio cells but also to and mobile communication scenario where the overlapping region of radio cells is neglectably small.

Source: Official WIGWAM Web Page (http://www.wigwam-project.de)
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