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To Relay or Not To Relay in Cognitive Radio Sensor Networks
(
IEEE
, 2014 , Article)
A recent investigation on MAC layer in cognitive radio networks proposed the primary packet relaying by the secondary node maintaining an extra queue used for this particular addable functionality. Nevertheless, relaying ...
Performance analysis of general order selection in decentralized cognitive radio networks
(
IEEE
, 2014 , Conference Paper)
In this paper, we consider an underlay secondary network comprising of K transmitter-receiver pairs sharing the spectrum of a primary network, which is divided into n non-overlapping frequency bands (subchannels). Each ...
On network flow maximization via multihop backhauling and UAVs: An integer programming approach
(
Institute of Electrical and Electronics Engineers Inc.
, 2019 , Conference Paper)
Although small cells (SC) densification approach plays a prominent role in achieving the data rate and coverage requirements in 5G networks, it poses serious challenges concerning the flexible and cost efficient backhauling ...
ICIC-Enabled Association and Channel Selection for UAV-BSS Based on User Locations and Demands
(
Institute of Electrical and Electronics Engineers Inc.
, 2019 , Conference Paper)
In this work, the downlink association problem is studied when inter-cell interference coordination (ICIC) is enabled at the network side. The serving base stations (BSs) are mounted over unmanned aerial vehicles (UAVs), ...
3D Beamforming with Massive Cylindrical Arrays for Physical Layer Secure Data Transmission
(
Institute of Electrical and Electronics Engineers Inc.
, 2019 , Article)
In this letter, a novel approach for physical layer security is implemented using massive cylindrical antenna arrays. A part of the arrays is used for transmitting a signal reliably from source to destination using highly ...
Degrees of Freedom of the Full-Duplex Asymmetric MIMO Three-Way Channel with Unicast and Broadcast Messages
(
Institute of Electrical and Electronics Engineers Inc.
, 2017 , Conference Paper)
In this paper, we characterize the total degrees of freedom (DoFs) of the full-duplex asymmetric multiple-input multiple- output (MIMO) three-way channel. Each node has a separate-antenna full-duplex MIMO transceiver with ...
On Channel Selection for Carrier Aggregation Systems
(
Institute of Electrical and Electronics Engineers Inc.
, 2018 , Article)
In this paper, the problem of sub-channel selection for carrier aggregation (CA) systems is examined. CA enables the achievement of high data rate links via simultaneous transmissions over multiple component carriers. A ...
Blind secure communication: The Secure degrees of freedom of one hop wireless networks with No CSI
(
Institute of Electrical and Electronics Engineers Inc.
, 2018 , Conference Paper)
We study a number of wireless networks with secrecy constraints and No CSI. The wiretap and MIMO broadcast channels in a presence of an external eavesdropper and the MIMO interference channel with secret messages and no ...
Maximizing Dense Network Flow through Wireless Multihop Backhauling using UAVs
(
Institute of Electrical and Electronics Engineers Inc.
, 2018 , Conference Paper)
UAV enabled communications promise to provide solutions for many challenges raised by the emerging and future 5G+ networks, especially the ones related to backhauling a network of ultra dense small cells (SC), while ...
Distributed power allocation for multi-flow carrier aggregation in heterogeneous cognitive cellular networks
(
Institute of Electrical and Electronics Engineers Inc.
, 2018 , Article)
In this paper, we study distributed power allocation for multiflow carrier aggregation in cognitive cellular networks. Our approach differs from the conventional water filling (WF) algorithm since we deal with heterogeneous ...