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相关论文: Full-Duplex Cloud-RAN with Uplink/Downlink Remote …

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In an ultra-dense cloud radio access network (UD-CRAN), a large number of remote radio heads (RRHs), typically employed as simple relay nodes, are distributed in a target area, which could even outnumber their served users. However, one…

信息论 · 计算机科学 2017-06-06 Reuben George Stephen , Rui Zhang

This paper considers a multicloud radio access network (M-CRAN), wherein each cloud serves a cluster of base-stations (BS's) which are connected to the clouds through high capacity digital links. The network comprises several remote users,…

信息论 · 计算机科学 2015-03-03 Hayssam Dahrouj , Tareq Y. Al-Naffouri , Mohamed-Slim Alouini

This paper considers a downlink transmission of cloud radio access network (C-RAN) in which precoded baseband signals at a common baseband unit are compressed before being forwarded to radio units (RUs) through limited fronthaul capacity…

信息论 · 计算机科学 2017-03-20 Kien-Giang Nguyen , Quang-Doanh Vu , Markku Juntti , Le-Nam Tran

This paper considers the power-efficient resource allocation problem in a cloud radio access network (C-RAN). The C-RAN architecture consists of a set of base-band units (BBUs) which are connected to a set of radio remote heads (RRHs)…

信号处理 · 电气工程与系统科学 2019-08-22 Nahid Amani , Saeedeh Parsaeefard , Hassan Taheri , Hossein Pedram

In this work, we study a full-duplex (FD) cloud radio access network (C-RAN) from the aspects of infrastructure sharing and information secrecy, where the central unit utilizes FD remote radio units (RU)s belonging to the same operator,…

信息论 · 计算机科学 2021-07-20 Omid Taghizadeh , Tianyu Yang , Hiroki Iimori , Giuseppe Abreu , Ali Cagatay Cirik , Rudolf Mathar

In this article, a radio access system with a self-backhauling full-duplex access node serving legacy half-duplex mobile devices is studied and analyzed. In particular, it is assumed that the access node is using the same center frequency…

信息论 · 计算机科学 2016-04-25 Dani Korpi , Taneli Riihonen , Ashutosh Sabharwal , Mikko Valkama

This paper addresses the coordinated scheduling problem in cloud-enabled networks. Consider the downlink of a cloud-radio access network (C-RAN), where the cloud is only responsible for the scheduling policy and the synchronization of the…

信息论 · 计算机科学 2014-11-18 Ahmed Douik , Hayssam Dahrouj , Tareq Y. Al-Naffouri , Mohamed-Slim Alouini

In this paper, we study the stochastic optimization of cloud radio access networks (C-RANs) by joint remote radio head (RRH) activation and beamforming in the downlink. Unlike most previous works that only consider a static optimization…

信息论 · 计算机科学 2016-11-15 Jian Li , Jingxian Wu , Mugen Peng , Ping Zhang

This work studies multigroup multicasting transmission in cloud radio access networks (C-RANs) with simultaneous wireless information and power transfer, where densely packed remote radio heads (RRHs) cooperatively provide information and…

信息论 · 计算机科学 2021-06-10 Fangqing Tan , Peiran Wu , Yik-Chung Wu , Minghua Xia

Fronthaul limitations in terms of capacity and latency motivate the growing interest in the wireless industry for the study of alternative functional splits between cloud and edge nodes in Cloud Radio Access Network (C-RAN). This work…

信息论 · 计算机科学 2017-06-23 Jinkyu Kang , Osvaldo Simeone , Joonhyuk Kang , Shlomo Shamai

A cloud radio access network (C-RAN) is a promising cellular network, wherein densely deployed multi-antenna remote-radio-heads (RRHs) jointly serve many users using the same time-frequency resource. By extremely high signaling overheads…

信号处理 · 电气工程与系统科学 2021-07-30 Deokhwan Han , Jeonghun Park , Seok-Hwan Park , Namyoon Lee

As a promising paradigm to reduce both capital and operating expenditures, the cloud radio access network (C-RAN) has been shown to provide high spectral efficiency and energy efficiency. Motivated by its significant theoretical performance…

信息论 · 计算机科学 2016-04-05 Mugen Peng , Yaohua Sun , Xuelong Li , Zhendong Mao , Chonggang Wang

The ultra-dense cloud radio access network (UD-CRAN), in which remote radio heads (RRHs) are densely deployed in the network, is considered. To reduce the channel estimation overhead, we focus on the design of robust transmit beamforming…

信号处理 · 电气工程与系统科学 2018-04-12 Cunhua Pan , Hong Ren , Maged Elkashlan , Arumugam Nallanathan , Lajos Hanzo

Millimeter-wave (mmWave) communication and network densification hold great promise for achieving high-rate communication in next-generation wireless networks. Cloud radio access network (CRAN), in which low-complexity remote radio heads…

信息论 · 计算机科学 2018-07-31 Reuben George Stephen , Rui Zhang

In a cell-free cloud radio access network (C-RAN) architecture, uplink channel estimation is carried out by a centralized baseband processing unit (BBU) connected to distributed remote radio heads (RRHs). When the RRHs have multiple…

信号处理 · 电气工程与系统科学 2019-12-19 Seok-Hwan Park , Osvaldo Simeone , Yonina C. Eldar , Elza Erkip

We consider a wireless system with a full-duplex (FD) access point (AP) that transmits to a scheduled user in the downlink (DL) channel, while receiving data from an user in the uplink (UL) channel at the same time on the same frequency. In…

信息论 · 计算机科学 2016-11-15 Mohammadali Mohammadi , Himal A. Suraweera , Ioannis Krikidis , Chintha Tellambura

Cloud-radio access network (C-RAN) can enable cell-less operation by connecting distributed remote radio heads (RRHs) via fronthaul links to a powerful central unit. In conventional C-RAN, baseband signals are forwarded after quantization/…

信息论 · 计算机科学 2021-03-23 Daniyal Amir Awan , Renato L. G. Cavalcante , Zoran Utkovski , Slawomir Stanczak

We propose a power-and rate-adaptation scheme for cloud radio access networks (C-RANs), where each radio remote head (RRH) is connected to the baseband unit (BBU) pool through optical links. The RRHs jointly support the users by efficiently…

信息论 · 计算机科学 2018-06-15 Hong Ren , Nan Liu , Cunhua Pan , Maged Elkashlan , Arumugam Nallanathan , Xiaohu You , Lajos Hanzo

In this work, we consider estimating user positions in a spatially distributed antenna system (DAS) from the uplink channel state information (CSI). However, with the increased number of remote radio heads (RRHs), collecting CSI at a…

信号处理 · 电气工程与系统科学 2021-11-09 Artan Salihu , Stefan Schwarz , Markus Rupp

In light of the premises of beyond fifth generation (B5G) networks, the need for better exploiting the capabilities of cloud-enabled networks arises, so as to cope with the large-scale interference resulting from the massive increase of…