Now showing items 1-10 of 425
Multipath-doppler diversity for broadband cooperative vehicular communications
Initial works on cooperative vehicular communications build upon the assumption of frequency-flat and quasi-static fading channels. This can be justified only for narrowband systems in very slow traffic flows such as in ...
Information theoretical performance limits of single-carrier underwater acoustic systems
In this study, the authors investigate the information theoretical limits on the performance of point-to-point single-carrier acoustic systems over frequency-selective underwater channels with intersymbol interference. ...
Novel adaptive transmission algorithms for free-space optical links
Atmospheric turbulence is a major degrading factor in free-space optical (FSO) systems. Since turbulence-induced fading results in a very slowly-varying channel, reliable feedback is possible allowing the implementation ...
Moment generating function-based performance evaluation of amplify-andforward relaying in N∗Nakagami fading channels
In this study, the authors investigate the error rate performance of amplify-and-forward relaying over N∗Nakagami fading channels. This is a recently introduced channel model that involves the product of N Nakagami-m-distributed ...
Design space–time trellis-coded intercarrier interference parallel cancelation architectures for ofdm systems
Space-time (ST) coding combined with orthogonal frequency-division multiplexing (OFDM) is a robust transmission system. However, ST-OFDM system performance may degrade because of the intercarrier interference (ICI) in ...
Channel estimation for amplify-and forward relaying: cascaded against disintegrated estimators
The authors investigate the performance of amplify-and-forward relaying with two different pilot-symbol-assisted channel estimation methods. In the first estimation method, the cascaded channel consisting of source-to-relay ...
Capacity of hybrid cognitive radio networks with distributed VAAs
A cooperative hybrid cognitive radio (CR) network is proposed to simultaneously operate on a dedicated licensed band and a secondary band. The licensed band is used for communications between a base station (BS) and mobile ...
Diversity-multiplexing trade-off in coherent free-space optical systems with multiple receivers
In this paper, from an information theory point of view, we investigate the performance of a coherent freespace optical (FSO) communication system with multiple receive apertures over atmospheric turbulence channels. Our ...
Spectrum trading for non-identical channel allocation in cognitive radio networks
In this paper, we investigate spectrum trading via auction approach for cognitive radio networks. We consider a realistic valuation function in terms of different parameters for secondary users (SUs), and propose an efficient ...
(Springer Nature, 2019)
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