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wireless gigabit with advanced multimedia (WIGWAM)

Wireless Gigabit With Advanced Multimedia (WIGWAM) is a gigabit WLAN project funded by the German Federal Ministry of Education and Research (BMBF) and developed under the leadership of the Technische Universität Dresden. Wigwam is a gigabit WLAN designed for a data rate of 1 Gbit/s in the 5 GHz band. The 17, 24, 38 and 60 GHz frequency bands

are also available. Wigwam is aimed at high-speed transmission of multimedia content broadcast

fromhotspots. In the Wigwam concept, high-speed wireless transmissions have been included in home, office, public, and high-movement environments. In the home, the concern is multi-user transmission of HDTV, where 20 Mbps should be provided to each user. The distance range is typically less than 20 m, the movement speed is negligible and the delay times

should not exceed 0.3 µs.In the office area, it is about the data rates at which the users access

theserver and which peak at 100 Mbit/s. Again, the movement speeds are negligible, the typical distance range is 20 m and the delay times can be 1 µs. In the public sector, we are talking about hotspots in airports, squares or hotels. The speed of movement can reach up to 100 kmh; the delay time should not exceed 1 µs and the distance range can reach up to 500 m. A connection with the cellular mobile radio networks

is aimed at. For applications with high speed of movement it is about the use of the Wigwam technology in high speed trains with up to 600 kmh. Transmission-wise Wigwam works with a transmission line of 100 mW and 1.000 mW. For coding and as an access method, Wigwam relies on the Low Density Parity Check (LDPC) as well as on Orthogonal Frequency Division Multiplex (OFDM) and Orthogonal Frequency Division Multiple Access (OFDMA) and Multiple Input Multiple Output (MIMO) with an antenna array consisting of a maximum of 4x4 antennas.

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Englisch: wireless gigabit with advanced multimedia - WIGWAM
Updated at: 03.04.2008
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