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pro vyhledávání: '"Ayman Assra"'
Random Matrix Approach for the Capacity of Large-Scale MIMO Systems using the Harish-Chandra Formula
Autor:
Marco Bertola, Ayman Assra
Publikováno v:
ICSPCS
The future communication networks tend to be denser and the use of large number of antennas becomes an attractive feature in 5G systems. However, the analysis and design of such networks become more challenging as engineers find a difficulty to deal
Publikováno v:
IEEE Transactions on Vehicular Technology. 65:1229-1243
In this paper, a cooperative wideband spectrum sensing scheme based on the expectation–maximization (EM) algorithm is proposed for the detection of a primary user (PU) system in multiantenna cognitive radio (CR) networks. Given noisy signal observa
Cooperative Multiband Joint Detection With Correlated Spectral Occupancy in Cognitive Radio Networks
Publikováno v:
IEEE Transactions on Signal Processing. 60:2682-2687
In this paper, a frequency-coupled optimum linear energy combiner (OLEC) structure, recently proposed for single user scenarios, is generalized to multiple users and integrated into the spatial-spectral joint detection framework introduced by Quan ,
Autor:
Benoit Champagne, Ayman Assra
Publikováno v:
ICC
In this paper, we present an iterative spectrum sensing scheme for multiantenna assisted cognitive radio (CR) using the expectation-maximization (EM) algorithm. Considering a wideband frequency spectrum, the secondary user (SU) performs an EM-based j
Publikováno v:
ISSPIT
In this paper, we introduce a joint channel and noise variance estimation, and primary user (PU) signal detection scheme using the expectation-maximization (EM) algorithm for cognitive radios. In our investigation, we consider two scenarios: In the f