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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…

Signal Processing · Electrical Eng. & Systems 2021-06-23 Lukuan Xing , Yong Zhou , Yuanming Shi

Full-duplex (FD) has emerged as a disruptive communications paradigm for enhancing the achievable spectral efficiency (SE), thanks to the recent major breakthroughs in self-interference (SI) mitigation. The FD versus half-duplex (HD) SE…

Information Theory · Computer Science 2017-11-07 Arman Shojaeifard , Kai-Kit Wong , Wei Yu , Gan Zheng , Jie Tang

In this work, we develop a pair of rate-diverse encoder and decoder for a two-user Gaussian multiple access channel (GMAC). The proposed scheme enables the users to transmit with the same codeword length but different coding rates under…

Information Theory · Computer Science 2021-03-23 Pingping Chen , Long Shi , Yi Fang , Francis C. M. Lau , Jun Cheng

This letter studies a cloud radio access network (C-RAN) with multiple intelligent reflecting surfaces (IRS) deployed between users and remote radio heads (RRH). Specifically, we consider the uplink transmission where each RRH quantizes the…

Signal Processing · Electrical Eng. & Systems 2021-04-12 Yu Zhang , Xuelu Wu , Hong Peng , Caijun Zhong , Xiaoming Chen

The radio access network (RAN) part of the next-generation wireless networks will require efficient solutions for satisfying low latency and high-throughput services. The open RAN (O-RAN) is one of the candidates to achieve this goal, in…

Networking and Internet Architecture · Computer Science 2022-02-01 Turgay Pamuklu , Shahram Mollahasani , Melike Erol-Kantarci

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

As a promising paradigm for fifth generation (5G) wireless communication systems, cloud radio access networks (C-RANs) have been shown to reduce both capital and operating expenditures, as well as to provide high spectral efficiency (SE)…

Information Theory · Computer Science 2016-11-15 M. Peng , C. Wang , V. Lau , H. V. Poor

This correspondence paper investigates joint design of small base station (SBS) clustering, multicast beamforming for access and backhaul links, as well as frequency allocation in backhaul transmission to minimize the total power…

Signal Processing · Electrical Eng. & Systems 2019-09-04 Jun Xu , Pengcheng Zhu , Jiamin Li , Xiaohu You

We study the transmission over a cloud radio access network in which multiple base stations (BS) are connected to a central processor (CP) via finite-capacity backhaul links. We propose two lattice-based coding schemes. In the first scheme,…

Information Theory · Computer Science 2016-03-01 Iñaki Estella Aguerri , Abdellatif Zaidi

This paper studies the application of compute-and-forward to multiple access relay channels (MARC). Despite its promising advantage of improving network throughput, it is not straightforward to apply compute-and-forward to the MARC. This…

Information Theory · Computer Science 2020-08-11 Mohammad Nur Hasan , Brian M. Kurkoski

The evolution of the future beyond-5G/6G networks towards a service-aware network is based on network slicing technology. With network slicing, communication service providers seek to meet all the requirements imposed by the verticals,…

Networking and Internet Architecture · Computer Science 2022-02-15 Abderrahime Filali , Boubakr Nour , Soumaya Cherkaoui , Abdellatif Kobbane

The implementation of a Cloud Radio Access Network (C-RAN) with Full Dimensional (FD)-MIMO is faced with the challenge of controlling the fronthaul overhead for the transmission of baseband signals as the number of horizontal and vertical…

Information Theory · Computer Science 2016-11-15 Jinkyu Kang , Osvaldo Simeone , Joonhyuk Kang , Shlomo Shamai

Infrared (IR) uplinks can achieve high data rates, which are essential in a range of applications. This paper introduces a novel approach to enable data centre uplink communication. We introduce a novel method to enable communication…

Signal Processing · Electrical Eng. & Systems 2020-05-05 Abrar S. Alhazmi , Osama Zwaid Alsulami , T. E. H. El-Gorashi , Mohammed T. Alresheedi , Jaafar M. H. Elmirghani

The multiuser communication channel, in which multiple users exchange information with the help of a relay terminal, termed the multi-way relay channel (mRC), is introduced. In this model, multiple interfering clusters of users communicate…

Information Theory · Computer Science 2015-03-14 Deniz Gunduz , Aylin Yener , Andrea Goldsmith , H. Vincent Poor

Supporting ultra-reliable and low-latency communications (URLLC) is one of the major goals for the fifth-generation cellular networks. Since spectrum usage efficiency is always a concern, and large bandwidth is required for ensuring…

Information Theory · Computer Science 2018-01-04 Changyang She , Chenyang Yang , Tony Q. S. Quek

The fog-radio-access-network (F-RAN) has been proposed to address the strict latency requirements, which offloads computation tasks generated in user equipments (UEs) to the edge to reduce the processing latency. However, it incorporates…

Signal Processing · Electrical Eng. & Systems 2022-07-04 Haonan Hu , Yan Jiang , Jiliang Zhang , Yanan Zheng , Qianbin Chen , Jie Zhang

Downlink joint transmission by a cluster of remote radio heads (RRHs) is an essential technique for enhancing throughput in future cellular networks. This method requires global channel state information (CSI) at the processing unit that…

Information Theory · Computer Science 2021-11-30 Niv Arad , Yair Noam

This paper presents a compression scheme developed for the transport of downlink radio signals in packet fronthaul of centralized-radio access networks (C-RAN). The technique is tailored to frequency-domain functional splits, in which…

Signal Processing · Electrical Eng. & Systems 2020-01-13 Cleverson Nahum , Leonardo Ramalho , Joary Fortuna , Chenguang Lu , Miguel Berg , Igor Almeida , Aldebaro Klautau

Achieving an end-to-end low-latency for computations offloading, in Mobile Edge Computing (MEC) systems, is still a critical design problem. This is because the offloading of computational tasks via the MEC servers entails the use of uplink…

Networking and Internet Architecture · Computer Science 2022-02-15 Ali Al-Shuwaili , Ahmed Lawey

A segmented waveguide-enabled pinching-antenna system (SWAN) is proposed, in which a segmented waveguide composed of multiple short dielectric waveguide segments is employed to radiate or receive signals through the pinching antennas (PAs)…

Signal Processing · Electrical Eng. & Systems 2025-09-16 Chongjun Ouyang , Hao Jiang , Zhaolin Wang , Yuanwei Liu , Zhiguo Ding