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Relay-based deployment concepts for wireless and mobile broadband radio
In recent years, there has been an upsurge of interest in multihop-augmented infrastructure-based networks in both the industry and academia, such as the seed concept in 3GPP, mesh networks in IEEEExpand
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Multihop diversity in wireless relaying channels
This paper presents theoretical characterizations and analysis for the physical layer of multihop wireless communications channels. Four channel models are considered and developed: the decodedExpand
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Device-to-device communication in 5G cellular networks: challenges, solutions, and future directions
In a conventional cellular system, devices are not allowed to directly communicate with each other in the licensed cellular bandwidth and all communications take place through the base stations. InExpand
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Efficient 3-D placement of an aerial base station in next generation cellular networks
Agility and resilience requirements of future cellular networks may not be fully satisfied by terrestrial base stations in cases of unexpected or temporary events. A promising solution is assistingExpand
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Enhancing cell-edge performance: a downlink dynamic interference avoidance scheme with inter-cell coordination
Interference management has been a key concept for designing future high data-rate wireless systems that are required to employ dense reuse of spectrum. Static or semi-static interferenceExpand
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3-D Placement of an Unmanned Aerial Vehicle Base Station (UAV-BS) for Energy-Efficient Maximal Coverage
Unmanned aerial vehicle mounted base stations (UAV-BSs) can provide wireless services in a variety of scenarios. In this letter, we propose an optimal placement algorithm for UAV-BSs that maximizesExpand
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3-D Placement of an Unmanned Aerial Vehicle Base Station for Maximum Coverage of Users With Different QoS Requirements
The need for a rapid-to-deploy solution for providing wireless cellular services can be realized by unmanned aerial vehicle base stations (UAV-BSs). To the best of our knowledge, this letter is theExpand
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On the approximation of the generalized-Κ distribution by a gamma distribution for modeling composite fading channels
In wireless channels, multipath fading and shadowing occur simultaneously leading to the phenomenon referred to as composite fading. The use of the Nakagami probability density function (PDF) toExpand
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Range extension without capacity penalty in cellular networks with digital fixed relays
The concept of relaying is a promising solution for the challenging throughput and high data rate coverage requirements of future wireless cellular networks. In this paper, we demonstrate that theExpand
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The New Frontier in RAN Heterogeneity: Multi-Tier Drone-Cells
In cellular networks, the locations of the RAN elements are determined mainly based on the long-term traffic behavior. However, when the random and hard-to-predict spatio-temporal distribution of theExpand
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