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Cognitive Radio Networks with Probabilistic Relaying: Stable Throughput and Delay Tradeoffs
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Institute of Electrical and Electronics Engineers Inc.
, 2015 , Article)
This paper studies fundamental throughput and delay tradeoffs in cognitive radio systems with cooperative secondary users. We focus on randomized cooperative policies, whereby the secondary user (SU) serves either its own ...
Power-optimal feedback-based random spectrum access for an energy harvesting cognitive user
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Institute of Electrical and Electronics Engineers Inc.
, 2015 , Conference Paper)
In this paper, we study and analyze cognitive radio networks in which secondary users (SUs) are equipped with energy harvesting (EH) capability. We design a random spectrum sensing and access protocol for the SU that ...
Energy-cost-distortion optimization for delay-sensitive M-health applications
(
IEEE Computer Society
, 2015 , Conference Paper)
Mobile-health (m-health) systems leverage wireless and mobile communication technologies to promote new ways to acquire, process, transport, and secure the raw and processed medical data to provide the scalability needed ...
Power control and group proportional fairness for frequency domain resource allocation in L-SC-FDMA based LTE uplink
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Kluwer Academic Publishers
, 2015 , Article)
Resource allocation in Long Term Evaluation (LTE) uplink is challenging because of two reasons: (1) it requires contiguous resource block allocation and (2) high complexity due to per user based power allocation among ...
Interference-based optimal power-efficient access scheme for cognitive radio networks
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Institute of Electrical and Electronics Engineers Inc.
, 2015 , Conference Paper)
In this paper, we propose a new optimization-based access strategy of multi-packet reception (MPR) channel for multiple secondary users (SUs) accessing the primary user (PU) spectrum. We devise an analytical model that ...
On the design of relay-assisted primary-secondary networks
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Institute of Electrical and Electronics Engineers Inc.
, 2015 , Conference Paper)
The use of N cognitive relays to assist primary and secondary transmissions in a time-slotted cognitive setting with one primary user (PU) and one secondary user (SU) is investigated. An overlapped spectrum sensing strategy ...
Millimeter-wave multimedia communications: Challenges, methodology, and applications
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Institute of Electrical and Electronics Engineers Inc.
, 2015 , Article)
The worldwide opening of a massive amount of unlicensed millimeter-wave spectrum has triggered great interest in developing high-bit-rate multimedia services and applications. Specific challenges for mmWave communication ...
MINTED: Multicast virtual network embedding in cloud data centers with delay constraints
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Institute of Electrical and Electronics Engineers Inc.
, 2015 , Article)
Network virtualization is regarded as the pillar of cloud computing, enabling the multi-tenancy concept where multiple Virtual Networks (VNs) can cohabit the same substrate network. With network virtualization, the problem ...
QoS optimization for cloud service composition based on economic model
(
Springer Verlag
, 2015 , Conference Paper)
Cloud service composition is usually long term based and economically driven. Services in cloud computing can be categorized into two groups: Application services and Computing Services. Compositions in the application ...