Zobrazeno 1 - 10
of 106
pro vyhledávání: '"Sherif, Amr"'
Harnessing information about the user mobility pattern and daily demand can enhance the network capability to improve the quality of experience (QoE) at Vehicular Ad-Hoc Networks (VANETs). Proactive caching, as one of the key features offered by 5G n
Externí odkaz:
http://arxiv.org/abs/1810.01172
In this research, we proposes a new method for cooperation and underlay mode selection in cognitive radio networks. We characterize the maximum achievable throughput of our proposed method of hybrid spectrum sharing. Hybrid spectrum sharing is assume
Externí odkaz:
http://arxiv.org/abs/1604.03633
Publikováno v:
In AEUE - International Journal of Electronics and Communications September 2021 139
This paper investigates the maximum stable throughput of a cooperative cognitive radio system with energy harvesting Primary User and Secondary User. Each PU and SU has a data queue for data storage and a battery for energy storage. These batteries h
Externí odkaz:
http://arxiv.org/abs/1509.04110
Frequency spectrum is one of the valuable resources in wireless communications. Using cognitive radio, spectrum efficiency will increase by making use of the spectrum holes. Dynamic Spectrum Access techniques allows secondary users to transmit on an
Externí odkaz:
http://arxiv.org/abs/1412.4999
In this paper, we study and analyze fundamental throughput and delay tradeoffs in cooperative multiple access for cognitive radio systems. We focus on the class of randomized cooperative policies, whereby the secondary user (SU) serves either the que
Externí odkaz:
http://arxiv.org/abs/1404.6112
In this paper, we study and analyze fundamental throughput-delay tradeoffs in cooperative multiple access for cognitive radio systems. We focus on the class of randomized cooperative policies, whereby the secondary user (SU) serves either the queue o
Externí odkaz:
http://arxiv.org/abs/1309.1200
In this paper, we examine a cognitive spectrum access scheme in which secondary users exploit the primary feedback information. We consider an overlay secondary network employing a random access scheme in which secondary users access the channel by c
Externí odkaz:
http://arxiv.org/abs/1204.1730
Autor:
Sahar A. Abdalbary, Mohamed Abdel-Wahed, Sherif Amr, Mostafa Mahmoud, Ehab A. A. El-Shaarawy, Safinaz Salaheldin, Amal Fares
Publikováno v:
Frontiers in Surgery, Vol 8 (2021)
Purpose: This study aims to histologically compare the median nerve in the arm, forearm, and wrist, to help understand how cervical radiculopathy in a double crush phenomenon causes distal nerve dysfunction at the carpal tunnel and median nerve with
Externí odkaz:
https://doaj.org/article/fab2a48b068443328a4b78cec72c0439
Autor:
Aziz, Moheb Sabry, El sherif, Amr Y.
Publikováno v:
In Alexandria Engineering Journal March 2016 55(1):707-714