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—This paper first presents an application of the modal theory for interpreting experimental results of the electromagnetic field variation along a tunnel. The transmitting frequency is assumed to be high enough so that the tunnel behaves as an oversized waveguide. Then, for a Multiple-Input Multiple-Output channel, theoretical results of the channel(More)
A channel estimation algorithm for MIMO-OFDM systems in Fast Time-Varying Environments is proposed. The channel estimation function is based on the equivalent discrete-time channel taps or on the physical propagation channel parameters. To handle rapid variations of channels within a transmission block, we approximate the channel by a basis expansion model(More)
This paper investigates the propagation channel characteristics of a power line communication inside a vehicle. Transfer functions have been measured between various points of the DC network in a frequency range extending from 500 kHz up to 70 MHz to deduce the statistical behavior of the path loss, delay spread and coherence bandwidth. The results are(More)