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Satellite-terrestrial integrated networks (STINs) are promising architecture for providing global coverage. In STINs, full frequency reuse between a satellite and a terrestrial base station (BS) is encouraged for aggressive spectrum reuse,…

Information Theory · Computer Science 2024-08-21 Doseon Kim , Sungyoon Cho , Wonjae Shin , Jeonghun Park , Dong Ku Kim

In this paper, we investigate the potential benefits of the massive multiple-input multiple-output (MIMO) enabled heterogeneous cloud radio access network (C-RAN) in terms of the secrecy and energy efficiency (EE). In this network, both…

Networking and Internet Architecture · Computer Science 2016-11-15 Lifeng Wang , Kai-Kit Wong , Maged Elkashlan , Arumugam Nallanathan , Sangarapillai Lambotharan

The Cloud-Radio Access Network (C-RAN) cellular architecture relies on the transfer of complex baseband signals to and from a central unit (CU) over digital fronthaul links to enable the virtualization of the baseband processing…

Information Theory · Computer Science 2016-08-24 Wonju Lee , Osvaldo Simeone , Joonhyuk Kang , Shlomo Shamai

In this paper, we study the resource allocation and user scheduling algorithm for minimizing the energy cost of data transmission in the context of OFDMA collaborative mobile cloud (CMC) with simultaneous wireless information and power…

Networking and Internet Architecture · Computer Science 2014-10-02 Zheng Chang , Jie Gong , Tapani Ristaniemi , Zhisheng Niu

This paper investigates simultaneous wireless information and power transfer (SWIPT) in energy harvesting (EH) relay systems. Unlike existing SWIPT schemes requiring the channel state information (CSI) for coherent information delivery, we…

Information Theory · Computer Science 2015-05-28 Peng Liu , Saeed Gazor , Il-Min Kim , Dong In Kim

We study the joint transmit (Tx) power allocation and receive (Rx) power splitting for simultaneous wireless information and power transfer (SWIPT). Considering the practical scenario of nonlinear energy harvesting (EH), we adopt the…

Information Theory · Computer Science 2018-04-03 Jae-Mo Kang , Il-Min Kim , Dong In Kim

The cloud radio access network (Cloud-RAN) has recently been proposed as one cost-effective and energy-efficient technique for 5G wireless networks. By moving the signal processing functionality to a single baseband unit (BBU) pool,…

Information Theory · Computer Science 2015-12-16 Yuanming Shi , Jinkun Cheng , Jun Zhang , Bo Bai , Wei Chen , Khaled B. Letaief

Cloud radio access network (C-RAN) is a promising technology for fifth-generation (5G) cellular systems. However the burden imposed by the huge amount of data to be collected (in the uplink) from the radio remote heads (RRHs) and processed…

Information Theory · Computer Science 2017-06-28 Alessandro Brighente , Stefano Tomasin

This paper studies the uplink of a cloud radio access network (C-RAN) where the cell sites are connected to a cloud-computing-based central processor (CP) with noiseless backhaul links with finite capacities. We employ a simple…

Information Theory · Computer Science 2014-08-19 Yuhan Zhou , Wei Yu

We consider the problem of Simultaneous Wireless Information and Power Transfer (SWIPT) over a fading multiple access channel with additive Gaussian noise. The transmitters as well as the receiver harvest energy from ambient sources. We…

Information Theory · Computer Science 2016-12-14 P K Deekshith , Trupthi Chougule , Shreya Turmari , Ramya Raju , Rakshitha Ram , Vinod Sharma

Software-defined networking (SDN) provides an agile and programmable way to optimize radio access networks via a control-data plane separation. Nevertheless, reaping the benefits of wireless SDN hinges on making optimal use of the limited…

Networking and Internet Architecture · Computer Science 2017-10-31 Chen-Feng Liu , Sumudu Samarakoon , Mehdi Bennis , H. Vincent Poor

This paper studies transmission strategies for the downlink of a cloud radio access network, in which the base stations are connected to a centralized cloud-computing based processor with digital fronthaul or backhaul links. We provide a…

Information Theory · Computer Science 2018-06-05 Pratik Patil , Binbin Dai , Wei Yu

In this paper, we consider simultaneous wireless information and power transfer (SWIPT) in orthogonal frequency division multiple access (OFDMA) systems with the coexistence of information receivers (IRs) and energy receivers (ERs). The IRs…

Information Theory · Computer Science 2015-09-04 Meng Zhang , Yuan Liu

We investigate the user-to-cell association (or user-clustering) and beamforming design for Cloud Radio Access Networks (CRANs) and Fog Radio Access Networks (FogRANs) for 5G. CRAN enables cloud centralized resource and power allocation…

Signal Processing · Electrical Eng. & Systems 2018-02-06 Nicolas Pontois , Megumi Kaneko , Thi Ha Ly Dinh , Lila Boukhatem

Over the last decade, simultaneous wireless information and power transfer (SWIPT) has become a practical and promising solution for connecting and recharging battery-limited devices, thanks to significant advances in low-power electronics…

Information Theory · Computer Science 2021-10-15 Zhiqiang Wei , Xianghao Yu , Derrick Wing Kwan Ng , Robert Schober

We consider wireless backhauling for a scenario where two small-cell base stations (SC-BSs) employ the same time and frequency resources for offloading their data to a common macro-cell base station (MC-BS). The two SC-BSs allocate a part…

Information Theory · Computer Science 2016-12-20 Vahid Jamali , Nikola Zlatanov , Robert Schober

This paper considers a cloud radio access network (C-RAN) where spatially distributed remote radio heads (RRHs) communicate with a full-duplex user. In order to reflect a realistic scenario, the uplink (UL) and downlink (DL) RRHs are…

Information Theory · Computer Science 2016-03-01 Mohammadali Mohammadi , Himal A. Suraweera , Chintha Tellambura

This paper studies a multi-hop decode-and-forward (DF) simultaneous wireless information and power transfer (SWIPT) system where a source sends data to a destination with the aid of multi-hop relays which do not depend on an external energy…

Information Theory · Computer Science 2019-08-28 Derek Kwaku Pobi Asiedu , Hoon Lee , Kyoung-Jae Lee

This work studies federated learning (FL) over a fog radio access network, in which multiple internet-of-things (IoT) devices cooperatively learn a shared machine learning model by communicating with a cloud server (CS) through distributed…

Signal Processing · Electrical Eng. & Systems 2022-06-06 Seok-Hwan Park , Hoon Lee

Cloud-Radio Access Networks (Cloud-RANs) are separating the mobile networks base station functions into three units, the connection between the two of them is referred to as the fronthaul network. This work demonstrates the transmission of…

Networking and Internet Architecture · Computer Science 2021-04-13 Line Larsen , Frank Slyne , Ghizlane Mountaser , Marco Ruffini , Toktam Mahmoodi