K
Khalid A. Qaraqe
Researcher at Texas A&M University at Qatar
Publications - 514
Citations - 7389
Khalid A. Qaraqe is an academic researcher from Texas A&M University at Qatar. The author has contributed to research in topics: Fading & Cognitive radio. The author has an hindex of 39, co-authored 477 publications receiving 5939 citations. Previous affiliations of Khalid A. Qaraqe include Texas A&M University & Chongqing University of Posts and Telecommunications.
Papers
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A New Approach for Time Synchronization in Wireless Sensor Networks: Pairwise Broadcast Synchronization
TL;DR: An energy-efficient clock synchronization scheme for Wireless Sensor Networks (WSNs) based on a novel time synchronization approach which significantly reduces the overall network-wide energy consumption without incurring any loss of synchronization accuracy compared to other well-known schemes.
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Energy Efficient Resource Allocation for Mixed RF/VLC Heterogeneous Wireless Networks
TL;DR: This paper forms and solves the problem of power and bandwidth allocation for energy efficiency maximization of a heterogeneous network composed of a VLC system and an RF communication system, and investigates the impact of the system parameters on the energy efficiency of the mixed RF/VLC heterogeneity network.
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A Survey on Green Mobile Networking: From The Perspectives of Network Operators and Mobile Users
TL;DR: This survey mainly focuses on energy-efficient techniques in base stations and mobile terminals as they constitute the major sources of energy consumption in wireless access networks, from the operator and user perspectives, respectively.
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Outage Analysis for Underlay Cognitive Networks Using Incremental Regenerative Relaying
TL;DR: An underlay cognitive network where the quality of service (QoS) of the secondary link is maintained by triggering an opportunistic regenerative relaying once it falls under an unacceptable level is investigated.
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Secrecy Outage Performance of Transmit Antenna Selection for MIMO Underlay Cognitive Radio Systems Over Nakagami- $m$ Channels
Hongjiang Lei,Chao Gao,Imran Shafique Ansari,Yongcai Guo,Yulong Zou,Gaofeng Pan,Khalid A. Qaraqe +6 more
TL;DR: This paper investigates the secrecy outage performances of optimal antenna selection and suboptimal antenna selection schemes for MIMO underlay cognitive radio systems over Nakagami- $m$ channels, and compares them with the space-time transmission (STT) scheme.