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This paper investigates the adaptive subcarrier and bit allocation algorithm for OFDMA systems. To minimize overall transmitted power, we propose a novel adaptive subcarrier and bit allocation algorithm based on channel state information…

Networking and Internet Architecture · Computer Science 2011-11-10 Sudhir B. Lande , J. B. Helonde , Rajesh Pande , S. S. Pathak

This paper aims to characterize the capacity limits of a wireless cellular network with a full-duplex (FD) base-station (BS) and half-duplex user terminals, in which three independent messages are communicated: the uplink message $m_1$ from…

Information Theory · Computer Science 2020-12-09 Kaiming Shen , Reza K. Farsani , Wei Yu

We present a joint sub-channel and power allocation framework for downlink transmission an orthogonal frequency-division multiple access (OFDMA)-based cellular network composed of a macrocell overlaid by small cells. In this framework, the…

Networking and Internet Architecture · Computer Science 2016-11-15 Amr Abdelnasser , Ekram Hossain , Dong In Kim

In this paper, we study the resource allocation algorithm design for multiuser orthogonal frequency division multiplexing (OFDM) downlink systems with simultaneous wireless information and power transfer. The algorithm design is formulated…

Information Theory · Computer Science 2016-11-17 Derrick Wing Kwan Ng , Ernest S. Lo , Robert Schober

Providing physical-layer security for mobile users in future broadband wireless networks is of both theoretical and practical importance. In this paper, we formulate an analytical framework for resource allocation in a downlink OFDMA-based…

Information Theory · Computer Science 2016-11-15 Xiaowei Wang , Meixia Tao , Jianhua Mo , Youyun Xu

In this letter, we investigate the resource allocation for downlink multi-cell coordinated OFDMA wireless networks, in which power allocation and subcarrier scheduling are jointly optimized. Aiming at maximizing the weighted sum of the…

Information Theory · Computer Science 2012-09-18 Zesong Fei , Shuo Li , Chengwen Xing , Yiqing Zhou , Jingming Kuang

Device-to-device(D2D) underlaying communication brings great benefits to the cellular networks from the improvement of coverage and spectral efficiency at the expense of complicated transceiver design. With frequency spectrum sharing mode,…

Information Theory · Computer Science 2013-07-02 Jialiang Zhang , Gang Wu , Wenhui Xiong , Zhi Chen , Shaoqian Li

This paper studies joint uplink (UL) and downlink (DL) resource allocation in user-centric orthogonal frequency division multiple access (OFDMA) cloud radio access network (CRAN), where the users select the distributed remote radio heads…

Information Theory · Computer Science 2019-06-21 Zehong Lin , Yuan Liu

This paper studies optimal resource allocation in the wireless-powered communication network (WPCN), where one hybrid access-point (H-AP) operating in full-duplex (FD) broadcasts wireless energy to a set of distributed users in the downlink…

Information Theory · Computer Science 2014-09-16 Hyungsik Ju , Rui Zhang

Full-duplex (FD) communication is an emerging technology that can potentially double the throughput of cellular networks. Preliminary studies in single-cell or small FD network deployments have revealed promising rate gains using…

Information Theory · Computer Science 2016-04-21 Italo Atzeni , Marios Kountouris , George C. Alexandropoulos

In this paper, we consider a down-link transmission of multicell virtualized wireless networks (VWNs) where users of different service providers (slices) within a specific region are served by a set of base stations (BSs) through orthogonal…

Information Theory · Computer Science 2015-08-27 Saeedeh Parsaeefard , Rajesh Dawadi , Mahsa Derakhshani , Tho Le-Ngoc

Orthogonal Frequency Division Multiplexing (OFDM) is the key component of many emerging broadband wireless access standards. The resource allocation in OFDM uplink, however, is challenging due to heterogeneity of users' Quality of Service…

Networking and Internet Architecture · Computer Science 2015-03-17 Xiaoxin Zhang , Liang Chen , Jianwei Huang , Minghua Chen , Yuping Zhao

This paper investigates full-duplex unmanned aerial vehicle (UAV) aided small cell wireless systems, where the UAV serving as the base station (BS) is designed to transmit data to the downlink users and receive data from the uplink users…

Information Theory · Computer Science 2019-12-11 Meng Hua , Luxi Yang , Cunhua Pan , Arumugam Nallanathan

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…

Information Theory · Computer Science 2016-11-15 Mohammadali Mohammadi , Himal A. Suraweera , Ioannis Krikidis , Chintha Tellambura

We consider single cell multi-user OFDMA downlink resource allocation on a flat-fading channel such that average supply power is minimized while fulfilling a set of target rates. Available degrees of freedom are transmission power and…

Information Theory · Computer Science 2013-07-12 Hauke Holtkamp , Gunther Auer , Harald Haas

This paper considers a full-duplex (FD) multiuser multiple-input single-output system where a base station simultaneously serves both uplink (UL) and downlink (DL) users on the same time-frequency resource. The crucial barriers in…

Signal Processing · Electrical Eng. & Systems 2019-03-18 Hieu V. Nguyen , Van-Dinh Nguyen , Octavia A. Dobre , Yongpeng Wu , Oh-Soon Shin

In this paper, a distributed and autonomous technique for resource and power allocation in orthogonal frequency division multiple access (OFDMA) femto-cellular networks is presented. Here, resource blocks (RBs) and their corresponding…

Information Theory · Computer Science 2013-06-21 Harald Burchardt , Sinan Sinanovic , Zubin Bharucha , Harald Haas

In this work we consider the problem of downlink resource allocation for proportional fairness of long term received rates of data users and quality of service for real time sessions in an OFDMA-based wireless system. The base station…

Networking and Internet Architecture · Computer Science 2007-11-09 Tolga Girici , Chenxi Zhu , Jonathan R. Agre , Anthony Ephremides

This paper considers the weighted sum rate (WSR) maximized resource allocation (RA) constrained by a system sum power in an orthogonal frequency division multiple access (OFDMA) downlink transmission system assisted by multiple…

Information Theory · Computer Science 2015-05-28 Tao Wang , Luc Vandendorpe

In this paper, we study resource allocation algorithm design for multiuser orthogonal frequency division multiple access (OFDMA) ultra-reliable low latency communication (URLLC) in mobile edge computing (MEC) systems. To achieve the…

Information Theory · Computer Science 2020-05-12 Walid R. Ghanem , Vahid Jamali , Qiuyu Zhang , Robert Schober