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5 papers · 1 filter
Degrees of Freedom in Cached MIMO Relay Networks With Multiple Base Stations
Osama A. Hanna, Amr El-Keyi, Mohammed Nafie
The ability of physical layer relay caching to increase the degrees of freedom (DoF) of a single cell was recently illustrated. In this paper, we extend this result to the case of…
Optimal Energy Allocation For Delay-Constrained Traffic Over Fading Multiple Access Channels
Antonious M. Girgis, Amr El-Keyi, Mohammed Nafie
In this paper, we consider a multiple-access fading channel where users transmit to a single base station (BS) within a limited number of time slots. We assume that each user h…
Efficient Soft-Input Soft-Output MIMO Chase Detectors for arbitrary number of streams
Ahmad Gomaa, Louay Jalloul
We present novel soft-input soft-output (SISO) multiple-input multiple-output (MIMO) detectors based on the Chase detection principle [1] in the context of iterative and decoding (…
On the Capacity of the Underwater Acoustic Channel with Dominant Noise Sources
Mustafa A. Kishk, Ahmed M. Alaa
This paper provides an upper-bound for the capacity of the underwater acoustic (UWA) channel with dominant noise sources and generalized fading environments. Previous works have sh…
Opportunistic Spectrum Sharing using Dumb Basis Patterns: The Line-of-Sight Interference Scenario
Ahmed M. Alaa, Mahmoud H. Ismail, Hazim Tawfik
We investigate a spectrum-sharing system with non-severely faded mutual interference links, where both the secondary-to-primary and primary-to-secondary channels have a Line-of-Sig…