Browsing by Subject "MAP estimation"
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Publisher and Date:(Kadir Has University, 2016)Rapid development in technology and increasing necessity to reach information instantaneously saturates RF bands rapidly. Because of that, it can be seen that we are gradually approaching upper limits of the band. It can said that, operating beyond that upper limit would be hard and unfeasible for 5th generation mobile systems (5G). At this point, it is needed to develop alternative telecommunication systems to RF technology. VLC could be the most appropriate and appealing solution for researchers ...
Sparse Channel Estimation for OFDM-Based Underwater Acoustic Systems in Rician Fading With a New OMP-MAP Algorithm Authors:
Publisher and Date:(IEEE, 2019)In this paper a new channel estimation algorithm is proposed that exploits channel sparsity in the time domain for an orthogonal frequency division multiplexing (OFDM)-based underwater acoustical (UWA) communications systems in the presence of Rician fading. A path-based channel model is used in which the channel is described by a limited number of paths each characterized by a delay Doppler scale and attenuation factor. The resulting algorithm initially estimates the overall sparse channel tap ...