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相关论文: Power-Efficient Resource Allocation in C-RANs with…

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In this paper, we investigate the uplink (UL) radio resource management for 5G aerial corridors with an open-radio access network (O-RAN)-enabled cell-free (CF) massive multiple-input multiple-output (mMIMO) system. Our objective is to…

系统与控制 · 电气工程与系统科学 2026-01-22 Manobendu Sarker , Md. Zoheb Hassan , Xianbin Wang

Large-scale distributed antenna systems with many access points (APs) that serve the users by coherent joint transmission is being considered for 5G-and-beyond networks. The technology is called Cell-free Massive MIMO and can provide a more…

信息论 · 计算机科学 2020-06-30 Trinh Van Chien , Emil Björnson , Erik G. Larsson

This paper considers a downlink ultra-dense heterogeneous cloud radio access network (H-CRAN) which guarantees seamless coverage and can provide high date rates. In order to reduce channel state information (CSI) feedback overhead,…

信息论 · 计算机科学 2018-04-24 Hao Xu , Cunhua Pan , Wei Xu , Gordon L. Stüber , Jianfeng Shi , Ming Chen

The integration of a near-space information network (NSIN) with the reconfigurable intelligent surface (RIS) is envisioned to significantly enhance the communication performance of future wireless communication systems by proactively…

信息论 · 计算机科学 2024-02-15 Puguang An , Peng Yang , Xianbin Cao , Kun Guo , Yue Gao , Tony Q. S. Quek

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,…

信息论 · 计算机科学 2015-12-16 Yuanming Shi , Jinkun Cheng , Jun Zhang , Bo Bai , Wei Chen , Khaled B. Letaief

Mobile cloud and edge computing protocols make it possible to offer computationally heavy applications to mobile devices via computational offloading from devices to nearby edge servers or more powerful, but remote, cloud servers. Previous…

信号处理 · 电气工程与系统科学 2021-03-31 Seok-Hwan Park , Seongah Jeong , Jinyeop Na , Osvaldo Simeone , Shlomo Shamai

In this paper, we consider a full duplex wireless powered communication network where multiple users with RF energy harvesting capabilities communicate to a hybrid energy and information access point. An optimization framework is proposed…

信息论 · 计算机科学 2019-10-30 Muhammad Shahid Iqbal , Yalcin Sadi , Sinem Coleri

Cloud Service Providers (CSPs) adapt different pricing models for their offered services. Some of the models are suitable for short term requirement while others may be suitable for the Cloud Service User's (CSU) long term requirement. In…

分布式、并行与集群计算 · 计算机科学 2014-03-12 Sunirmal Khatua , Preetam K. Sur , Rajib K. Das , Nandini Mukherjee

A fundamental problem in wireless networks is the maximum link scheduling problem: given a set $L$ of links, compute the largest possible subset $L'\subseteq L$ of links that can be scheduled simultaneously without interference. This…

分布式、并行与集群计算 · 计算机科学 2012-11-19 Guanhong Pei , Anil Kumar S. Vullikanti

In cloud radio access networks (C-RANs), the baseband processing of the available macro- or pico/femto-base stations (BSs) is migrated to control units, each of which manages a subset of BS antennas. The centralized information processing…

信息论 · 计算机科学 2013-11-27 Seok-Hwan Park , Osvaldo Simeone , Onur Sahin , Shlomo Shamai

In this work, we investigate the problem of mitigating interference between so called antenna domains of a cloud radio access network (C-RAN). In contrast to previous work, we turn to an approach utilizing primarily the optimal assignment…

Spectrum pooling allows multiple operators, or tenants, to share the same frequency bands. This work studies the optimization of spectrum pooling for the downlink of a multi-tenant Cloud Radio Access Network (C-RAN) system in the presence…

信息论 · 计算机科学 2017-10-18 Seok-Hwan Park , Osvaldo Simeone , Shlomo Shamai

Over-the-air computation (AirComp) has recently been recognized as a promising scheme for a fusion center to achieve fast distributed data aggregation in wireless networks via exploiting the superposition property of multiple-access…

信号处理 · 电气工程与系统科学 2021-06-23 Lukuan Xing , Yong Zhou , Yuanming Shi

The recently proposed open-radio access network (O-RAN) architecture embraces cloudification and network function virtualization techniques to perform the base-band function processing by dis-aggregated radio units (RUs), distributed units…

网络与互联网体系结构 · 计算机科学 2022-02-23 Sourav Mondal , Marco Ruffini

The cloud radio access network (C-RAN) concept, in which densely deployed access points (APs) are empowered by cloud computing to cooperatively support mobile users (MUs), to improve mobile data rates, has been recently proposed. However,…

信息论 · 计算机科学 2014-06-24 Shixin Luo , Rui Zhang , Teng Joon Lim

Providing femto-access points (FAPs) with computational capabilities will allow (either total or partial) offloading of highly demanding applications from smart-phones to the so called femto-cloud. Such offloading promises to be beneficial…

信息论 · 计算机科学 2015-11-23 Olga Muñoz , Antonio Pascual-Iserte , Josep Vidal

Control data separation architecture (CDSA) is a more efficient architecture to overcome the overhead issue than the conventional cellular networks, especially for the huge bursty traffic like Internet of Things, and over-the-top (OTT)…

信息论 · 计算机科学 2015-11-24 Qiang Liu , Gang Wu , Yingchu Guo , Yusong Zhang

We consider the uplink of a cloud radio access network (C-RAN), where massive MIMO remote radio heads (RRHs) serve as relays between users and a centralized baseband unit (BBU). Although employing massive MIMO at RRHs can improve the…

信息论 · 计算机科学 2019-05-01 An Liu , Xihan Chen , Wei Yu , Vincent Lau , Min-Jian Zhao

Radio-frequency portion of the electromagnetic spectrum is a scarce resource. Cognitive radio technology has emerged as a promising solution to overcome the spectrum scarcity bottleneck. Through this technology, secondary users (SUs) sense…

数据结构与算法 · 计算机科学 2022-04-28 Hossein Falsafain , Mohammad Reza Heidarpour , Soroush Vahidi

Open Radio Access Network (Open RAN) has gained tremendous attention from industry and academia with decentralized baseband functions across multiple processing units located at different places. However, the ever-expanding scope of RANs,…

网络与互联网体系结构 · 计算机科学 2023-10-06 Haiyuan Li , Amin Emami , Karcius Assis , Antonis Vafeas , Ruizhi Yang , Reza Nejabati , Shuangyi Yan , Dimitra Simeonidou