The authors consider an overlay mode of an Orthogonal Frequency Division Multiple Access (OFDMA) based cellular system using orthogonal beamforming to provide broadband wireless access for rural users. In this overlay mode, since the signals transmitted to rural users should not interfere with mobile users of higher priority in the ...Download Now
This paper studies the coordinated multicell downlink transmission to cope with the severe Inter-Cell Interference (ICI) in future cellular systems. The authors propose an iterative scheme to jointly optimize the Base Station (BS) and relay beamforming weights to maximize the worst-case Signal-to-Interference-and-Noise Ratio (SINR) with perfect Channel State Information (CSI), ...Download Now
Energy Delay Tradeoff (EDT) is a fundamental tradeoff that can play a crucial role in understanding the energy efficiency of various transmission schemes. For Hybrid Automatic Repeat reQuest (HARQ) protocols, EDT can be well defined. In this paper, in order to understand the EDT for wireless multiuser systems, the authors ...Download Now
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