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This paper considers a fully-connected interference network with a relay in which multiple users equipped with a single antenna want to exchange multiple unicast messages with other users in the network by sharing the relay equipped with…

Information Theory · Computer Science 2013-02-05 Namyoon Lee , Robert W. Heath

Cell-free (CF) architecture and full-duplex (FD) communication are leading candidates for next-generation wireless networks. The CF framework removes cell boundaries in traditional cell-based systems, thereby mitigating inter-cell…

Signal Processing · Electrical Eng. & Systems 2024-12-09 Diluka Galappaththige , Mohammadali Mohammadi , Hien Quoc Ngo , Michail Matthaiou , Chintha Tellambura

We study a three-node network with a full-duplex base-station communicating with one uplink and one downlink half-duplex node. In this network, both self-interference and inter-node interference are present. We use an antenna-theory-based…

Information Theory · Computer Science 2016-06-21 Yujun Chen , Ashutosh Sabharwal

An uplink-downlink two-cell cellular network is studied in which the first base station (BS) with $M_1$ antennas receives independent messages from its $N_1$ serving users, while the second BS with $M_2$ antennas transmits independent…

Information Theory · Computer Science 2014-10-28 Sang-Woon Jeon , Changho Suh

We study a multi-cell multi-user MIMO full-duplex network, where each base station (BS) has multiple antennas with full-duplex capability supporting single-antenna users with either full-duplex or half-duplex radios. We characterize the up-…

Information Theory · Computer Science 2016-06-17 Jingwen Bai , Ashutosh Sabharwal

Full-duplex (FD) cellular networks are considered in which a FD base station (BS) simultaneously supports a set of half-duplex (HD) downlink (DL) users and a set of HD uplink (UL) users. The transmitter and the receiver of the BS are…

Information Theory · Computer Science 2016-11-16 Minho Yang , Sang-Woon Jeon , Dong Ku Kim

Modern radio communication is faced with a problem about how to distribute restricted frequency to users in a certain space. Since our task is to minimize the number of repeaters, a natural idea is enlarging coverage area. However, coverage…

Networking and Internet Architecture · Computer Science 2011-12-08 Yi Bao , Chao Wang , Ming Chen

The availability of very wide spectrum in millimeter wave bands combined with large antenna arrays and ultra dense networks raises two basic questions: What is the true value of overly abundant degrees of freedom and how can networks be…

Information Theory · Computer Science 2020-02-21 Felipe Gómez-Cuba , Elza Erkip , Sundeep Rangan , Francisco J. González-Castaño

Femtocellular networks will co-exist with macrocellular networks, mitigation of the interference between these two network types is a key challenge for successful integration of these two technologies. In particular, there are several…

Networking and Internet Architecture · Computer Science 2014-12-12 Mostafa Zaman Chowdhury , Yeong Min Jang , Zygmunt J. Haas

In this paper, we consider two fundamental full-duplex (FD) architectures, two-node and three-node, in the context of cellular networks where the terminals employ directional antennas. The simultaneous transmission and reception of data in…

Information Theory · Computer Science 2016-11-03 Constantinos Psomas , Mohammadali Mohammadi , Ioannis Krikidis , Himal A. Suraweera

In this paper multi-antenna half-duplex and full-duplex relaying are compared from the perspective of achievable rates. Full-duplexing operation requires additional resources at the relay such as antennas and RF chains for self-interference…

Information Theory · Computer Science 2013-03-13 Nirmal Shende , Ozgur Gurbuz , Elza Erkip

We study opportunistic scheduling and the sum capacity of cellular networks with a full-duplex multi-antenna base station and a large number of single-antenna half-duplex users. Simultaneous uplink and downlink over the same band results in…

Information Theory · Computer Science 2016-11-17 Can Karakus , Suhas Diggavi

We study the converse and achievability for the degrees of freedom of the multicellular multiple-input multiple-output (MIMO) multiple access channel (MAC) with constant channel coefficients. We assume L>1 homogeneous cells with K>0 users…

Information Theory · Computer Science 2016-10-04 Taejoon Kim , David J. Love , Bruno Clerckx

In-band full-duplex (FD) communications have been optimistically promoted to improve the spectrum utilization and efficiency. However, the penetration of FD communications to the cellular networks domain is challenging due to the imposed…

Information Theory · Computer Science 2016-07-12 Ahmad AlAmmouri , Hesham ElSawy , Osama Amin , Mohamed-Slim Alouini

The use of in-band full-duplex (FD) enables nodes to simultaneously transmit and receive on the same frequency band, which challenges the traditional assumption in wireless network design. The full-duplex capability enhances spectral…

Information Theory · Computer Science 2023-04-26 Besma Smida , Ashutosh Sabharwal , Gabor Fodor , George C. Alexandropoulos , Himal A. Suraweera , Chan-Byoung Chae

The challenge to in-band full-duplex wireless communication is managing self-interference. Many designs have employed spatial isolation mechanisms, such as shielding or multi-antenna beamforming, to isolate the self-interference wave from…

Information Theory · Computer Science 2014-04-10 Evan Everett , Ashutosh Sabharwal

Full-duplex small-cell relays with multiple antennas constitute a core element of the envisioned 5G network architecture. In this paper, we use stochastic geometry to analyze the performance of wireless networks with full-duplex…

Information Theory · Computer Science 2015-07-06 Italo Atzeni , Marios Kountouris

In-band full-duplex (FD) communication is considered a potential candidate to be adopted by the fifth generation (5G) cellular networks. FD communication renders the entire spectrum simultaneously accessible by uplink and downlink, and…

Information Theory · Computer Science 2016-04-12 Hesham ElSawy , Ahmad AlAmmouri , Osama Amin , Mohamed-Slim Alouini

Full-duplex (FD) allows the exchange of data between nodes on the same temporal and spectrum resources, however, it introduces self interference (SI) and additional network interference compared to half-duplex (HD). Power control in the FD…

Networking and Internet Architecture · Computer Science 2017-02-23 Chenyuan Feng , Yi Zhong , Tony Q. S. Quek , Gang Wu

In cellular systems using frequency division duplex, growing Internet services cause unbalance of uplink and downlink traffic, resulting in poor uplink spectrum utilization. Addressing this issue, this paper considers overlaying an ad hoc…

Information Theory · Computer Science 2016-11-17 Kaibin Huang , Yan Chen , Bin Chen , Xia Yang , Vincent K. N. Lau