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In cell-free massive multiple-input multiple-output (MIMO) the fluctuations of the channel gain from the access points to a user are large due to the distributed topology of the system. Because of these fluctuations, data decoding schemes…

Information Theory · Computer Science 2022-02-17 Giovanni Interdonato , Hien Quoc Ngo , Erik G. Larsson

Hybrid beamforming is a promising concept to achieve high data rate transmission at millimeter waves. To implement it in a transceiver, many references optimally adapt to a high-dimensional multi-antenna channel but more or less ignore the…

Information Theory · Computer Science 2018-02-28 Hsiao-Lan Chiang , Wolfgang Rave , Tobias Kadur , Gerhard Fettweis

Constant envelope (CE) precoding is an appealing transmission technique, which enables highly efficient power amplification, and is realizable with a single radio frequency (RF) chain at the multi-antenna transmitter. In this paper, we…

Information Theory · Computer Science 2016-09-09 Shuowen Zhang , Rui Zhang , Teng Joon Lim

Trellis-coded modulation (TCM) is a power and bandwidth efficient digital transmission scheme which offers very low structural delay of the data stream. Classical TCM uses a signal constellation of twice the cardinality compared to an…

Information Theory · Computer Science 2014-05-28 Fabian Schuh , Johannes B. Huber

In this paper, a joint design of instantaneous channel estimation, beam tracking, and adaptive beamformer construction for a massive multiple-input multiple-output (MIMO) system is proposed. This design focuses on efficiency in terms of…

Information Theory · Computer Science 2023-03-02 Anil Kurt , Gokhan M. Guvensen

We address a design of high-capacity and low-peak-to-average power ratio (PAPR) orthogonal frequency-division multiplexing (OFDM) systems based on bit-interleaved coded modulation (BICM) utilizing non-equiprobable and non-uniform (NENU)…

Information Theory · Computer Science 2026-01-21 Eito Kurihara , Hideki Ochiai

In this paper, a neural network-aided bit-interleaved coded modulation (NN-BICM) receiver is designed to mitigate the nonlinear clipping distortion in the LDPC coded direct currentbiased optical orthogonal frequency division multiplexing…

Machine Learning · Computer Science 2018-09-05 Yuan He , Ming Jiang , Chunming Zhao

This paper introduces novel transmit beamforming approaches for the cognitive radio (CR) Z-channel. The proposed transmission schemes exploit non-causal information about the interference at the SBS to re-design the CR beamforming…

Information Theory · Computer Science 2017-06-07 Ka Lung Law , Christos Masouros , Marius Pesavento

The idea of Media-based Modulation (MBM) is to embed information in the variations of the transmission media (channel states). Using an RF closure with $w$ RF walls, MBM creates a set of $2^w$ select-able states for the end-to-end channel.…

Information Theory · Computer Science 2022-02-08 Ehsan Seifi , Amir K. Khandani

Motivated by massive deployment of low data rate Internet of things (IoT) and ehealth devices with requirement for highly reliable communications, this paper proposes receive beamforming techniques for the uplink of a single-input…

Information Theory · Computer Science 2017-05-17 Majid Bavand , Steven D. Blostein

Cooperative beamforming (CB) has been proposed as a special case of coordinated multi-point techniques in wireless communications. In wireless sensor networks, CB can enable low power communication by allowing a collection of sensor nodes…

Information Theory · Computer Science 2015-10-29 Spyridon Vassilaras , George C. Alexandropoulos , Antonis A. Kalis

In this work, a new fast-decodable space-time block code (STBC) is proposed. The code is full-rate and full-diversity for 4x2 multiple-input multiple-output (MIMO) transmission. Due to the unique structure of the codeword, the proposed code…

Information Theory · Computer Science 2014-01-08 Ming Liu , Maryline Hélard , Jean-François Hélard , Matthieu Crussière

The secure multiplex coding (SMC) is a technique to remove rate loss in the coding for wire-tap channels and broadcast channels with confidential messages caused by the inclusion of random bits into transmitted signals. SMC replaces the…

Information Theory · Computer Science 2016-09-28 Masahito Hayashi , Ryutaroh Matsumoto

This paper considers a basic MIMO information-energy (I-E) broadcast system, where a multi-antenna transmitter transmits information and energy simultaneously to a multi-antenna information receiver and a dual-functional multi-antenna…

Information Theory · Computer Science 2014-03-28 Qingjiang Shi , Weiqiang Xu , Jinsong Wu , Enbin Song , Yaming Wang

This paper considers the joint transceiver design in a wireless sensor network where multiple sensors observe the same physical event and transmit their contaminated observations to a fusion center, with all nodes equipped with multiple…

Information Theory · Computer Science 2015-06-22 Yang Liu , Jing Li , Xuanxuan Lu , Chau Yuen

Hybrid beamforming (HB) has been widely studied for reducing the number of costly radio frequency (RF) chains in massive multiple-input multiple-output (MIMO) systems. However, previous works on HB are limited to a single user equipment…

Information Theory · Computer Science 2016-11-03 Dengkui Zhu , Boyu Li , Ping Liang

Hybrid beamforming has evolved as a promising technology that offers the balance between system performance and design complexity in mmWave MIMO systems. Existing hybrid beamforming methods either impose unit-modulus constraints or a…

Signal Processing · Electrical Eng. & Systems 2022-12-01 Mohamed Salah Ibrahim , Akshay Malhotra , Mihaela Beluri , Arnab Roy , Shahab Hamidi-Rad

As a typical example of bandwidth-efficient techniques, bit-interleaved coded modulation with iterative decoding (BICM-ID) provides desirable spectral efficiencies in various wireless communication scenarios. In this paper, we carry out a…

Information Theory · Computer Science 2019-11-07 Zhaojie Yang , Yi Fang , Guohua Zhang , Francis C. M. Lau , Shahid Mumtaz , Daniel B. da Costa

Matrix pair beamformer (MPB) is a promising blind beamformer which exploits the temporal signature of the signal of interest (SOI) to acquire its spatial statistical information. It does not need any knowledge of directional information or…

Computational Engineering, Finance, and Science · Computer Science 2010-10-04 Jian Wang , Jianshu Chen , Jian Yuan , Ning Ge , Shuangqing Wei

Digital video broadcasting (DVB-C2) and other modern communication standards increase diversity by means of a symbol-level interleaver that spans over several codewords. De-interleaving at the receiver requires a large memory, which has a…

Information Theory · Computer Science 2016-11-15 Stefano Rosati , Stefano Tomasin , Matteo Butussi , Bixio Rimoldi
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