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Low-resolution digital-to-analog converter (DAC) has shown great potential in facilitating cost- and power-efficient implementation of massive multiple-input multiple-output (MIMO) systems. We investigate the performance of a massive MIMO…

信息论 · 计算机科学 2019-01-30 Jindan Xu , Wei Xu , Fengkui Gong , Hua Zhang , Xiaohu You

In this paper the performance limits and design principles of rateless codes over fading channels are studied. The diversity-multiplexing tradeoff (DMT) is used to analyze the system performance for all possible transmission rates. It is…

信息论 · 计算机科学 2008-04-30 Yijia Fan , Lifeng Lai , Elza Erkip , H. Vincent Poor

A memoryless state-dependent multiple-access channel (MAC) is considered, where two transmitters wish to convey their messages to a single receiver while simultaneously sensing (estimating) the respective states via generalized feedbacks.…

信息论 · 计算机科学 2022-04-01 Mehrasa Ahmadipour , Michele Wigger , Mari Kobayashi

We study the throughput capacity region of the Gaussian multi-access (MAC) fading channel with perfect channel state information (CSI) at the receiver and at the transmitters, at low power regime. We show that it has a multidimensional…

信息论 · 计算机科学 2013-11-01 Zouheir Rezki , Mohamed-Slim Alouini

We address the problem of coding for classical multiple-access channels (MACs) with the assistance of non-signaling correlations between parties. It is well-known that non-signaling assistance does not change the capacity of classical…

信息论 · 计算机科学 2023-09-14 Omar Fawzi , Paul Fermé

A multiple-input multiple-output (MIMO) version of the dirty paper channel is studied, where the channel input and the dirt experience the same fading process and the fading channel state is known at the receiver (CSIR). This represents…

信息论 · 计算机科学 2017-06-22 Ahmed Hindy , Aria Nosratinia

Distributed medium access control (MAC) protocols are essential for the proliferation of low cost, decentralized wireless local area networks (WLANs). Most MAC protocols are designed with the presumption that nodes comply with prescribed…

网络与互联网体系结构 · 计算机科学 2016-11-17 Khoa Tran Phan , Jaeok Park , Mihaela van der Schaar

In this paper, we study the problem of user activity detection and large-scale fading coefficient estimation in a random access wireless uplink with a massive MIMO base station with a large number $M$ of antennas and a large number of…

信息论 · 计算机科学 2021-09-22 Alexander Fengler , Saeid Haghighatshoar , Peter Jung , Giuseppe Caire

Accurate multiple-input multiple-output (MIMO) channel estimation is critical for next-generation wireless systems, enabling enhanced communication and sensing performance. Traditional model-based channel estimation methods suffer, however,…

信号处理 · 电气工程与系统科学 2026-02-02 Seyed Alireza Javid , Nuria González-Prelcic

The estimation of millimeter wave (mmWave) massive multiple input multiple output (MIMO) channels becomes compelling when one-bit analog to digital converters (ADCs) are utilized. Furthermore, as the number of antenna increases, pilot…

信号处理 · 电气工程与系统科学 2024-01-04 Erhan Karakoca , Hasan Nayir , Ali Görçin , Khalid Qaraqe

This paper considers the large-scale fading precoding design for mitigating the pilot contamination in the downlink of multi-cell massive MIMO (multiple-input multiple-output) systems. Rician fading with spatially correlated channels are…

信息论 · 计算机科学 2020-02-05 Özlem Tugfe Demir , Emil Björnson

Massive multiple-input multiple-output (MIMO) can improve the overall system performance significantly. Massive MIMO systems, however, may require a large number of radio frequency (RF) chains that could cause high cost and power…

信息论 · 计算机科学 2022-06-28 Hwanjin Kim , Junil Choi

Efficient symbol detection algorithms carry critical importance for achieving the spatial multiplexing gains promised by multi-input multi-output (MIMO) systems. In this paper, we consider a maximum a posteriori probability (MAP) based…

信息论 · 计算机科学 2017-10-04 Yavuz Yapici , Ismail Guvenc , Yuichi Kakishima

The fading cognitive multiple-access channel with confidential messages (CMAC-CM) is investigated, in which two users attempt to transmit common information to a destination and user 1 also has confidential information intended for the…

信息论 · 计算机科学 2009-12-29 Ruoheng Liu , Yingbin Liang , H. Vincent Poor

Channel estimation for millimeter-wave (mmWave) massive MIMO with hybrid precoding is challenging, since the number of radio frequency (RF) chains is usually much smaller than that of antennas. To date, several channel estimation schemes…

信息论 · 计算机科学 2023-10-20 Zhen Gao , Linglong Dai , Chen Hu , Zhaocheng Wang

This paper addresses channel estimation and data equalization on frequency-selective 1-bit quantized Multiple Input-Multiple Output (MIMO) systems. No joint processing or Channel State Information is assumed at the transmitter, and…

信息论 · 计算机科学 2021-03-09 Javier García , Jawad Munir , Kilian Roth , Josef A. Nossek

We consider time varying MIMO fading channels with known spatial and temporal correlation and solve the problem of joint carrier frequency offset (CFO) and channel estimation with prior distributions. The maximum a posteriori probability…

信息论 · 计算机科学 2025-09-03 Ibrahim Khalife , Ali Abbasi , Zhe Feng , Mingda Zhou , Xinming Huang , Youjian Liu

This paper investigates an uplink multiuser massive multiple-input multiple-output (MIMO) system with one-bit analog-to-digital converters (ADCs), in which $K$ users with a single-antenna communicate with one base station (BS) with $n_r$…

信息论 · 计算机科学 2017-02-03 Seonho Kim , Namyoon Lee , Songnam Hong

At this present scenario, the demand of the system capacity is very high in wireless network. MIMO technology is used from the last decade to provide this requirement for wireless network antenna technology. MIMO channels are mostly used…

网络与互联网体系结构 · 计算机科学 2014-10-29 Sutanu Ghosh

Nonlinear precoding and pulse shaping are jointly considered in multi-user massive multiple-input multiple-output (MIMO) systems with low-resolution D/A-converters (DACs) in terms of algorithmic approach as well as large system performance.…

信息论 · 计算机科学 2021-06-29 Amine Mezghani , Robert W. Heath