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A new mobile digital radio transceiver concept using low-complexity combined equalization/trellis decoding and a near-optimal receiver sync strategy

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2 Author(s)
S. A. Fechtel ; Aachen Univ. of Technol., Germany ; H. Meyr

For land-mobile digital radio links over time-variant frequency-selective multipath channels, power and bandwidth efficient signaling and time diversity, as provided by interleaved trellis-coded modulation, are of great importance in a fading environment. A novel digital radio transceiver concept is presented that encompasses interleaved trellis coded modulation with large time diversity factor, a combined equalization/decoding scheme, and a quasi-optimal receiver sync strategy based on purely feedforward channel estimation. The resulting fully coherent and robust receiver is of remarkably low computational complexity. The average BER performance of such a transceiver operating over flat and selective 2-ray Rayleigh as well as typical land-mobile GSM channels is assessed via simulation. The results reveal the receiver's robustness and good BER performance and also shed light on the effects of insufficient interleaving at low vehicle speeds

Published in:

Personal, Indoor and Mobile Radio Communications, 1992. Proceedings, PIMRC '92., Third IEEE International Symposium on

Date of Conference:

19-21 Oct 1992