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The uplink achievable rate of massive multiple- input-multiple-output (MIMO) systems, where the low-resolution analog-to-digital converters (ADCs) are assumed to equip at the base station (BS), is investigated in this paper. We assume that…

信息论 · 计算机科学 2018-01-31 Kai Liu , Cheng Tao , Liu Liu , Yinsheng Liu

We consider an uplink multi-user scenario and investigate the use of reconfigurable intelligent surfaces (RIS) to optimize spatial multiplexing performance when a linear receiver is used. We study two different formulations of the problem,…

信号处理 · 电气工程与系统科学 2020-09-16 Mohamed A. ElMossallamy , Hongliang Zhang , Radwa Sultan , Karim G. Seddik , Lingyang Song , Geoffery Ye Li , Zhu Han

Reconfigurable intelligent surface (RIS)-aided vehicle-to-everything (V2X) communication has emerged as a crucial solution for providing reliable data services to vehicles on the road. However, in delay-sensitive or high-mobility…

信号处理 · 电气工程与系统科学 2025-03-03 Shuaijun Li , Jie Tang , Beixiong Zheng , Xiaokai Song , Guixin Pan , Kai-Kit Wong

When the users in a MIMO broadcast channel experience different spatial transmit correlation matrices, a class of gains is produced that is denoted transmit correlation diversity. This idea was conceived for channels in which transmit…

信息论 · 计算机科学 2021-04-21 Fan Zhang , Khac-Hoang Ngo , Sheng Yang , Aria Nosratinia

With the goal of ubiquitous global connectivity, multibeam low Earth orbit (LEO) satellite communication (SATCOM) has attracted significant attention in recent years. The traffic demands of users are heterogeneous within the broad coverage…

信息论 · 计算机科学 2025-02-11 Jaehyup Seong , Juha Park , Juhwan Lee , Jungwoo Lee , Jung-Bin Kim , Wonjae Shin , H. Vincent Poor

An achievable rate region, based on lattice interference alignment, is derived for a class of time-invariant Gaussian interference channels with more than two users. The result is established via a new coding theorem for the two-user…

信息论 · 计算机科学 2011-06-21 Or Ordentlich , Uri Erez

In this paper we investigate the achievable rate of LOS MIMO systems that use 1-bit quantization and spatial oversampling at the receiver. We propose that by using additional antennas at the receiver, the loss incurred due to the strong…

信息论 · 计算机科学 2017-02-13 Tim Hälsig , Berthold Lankl

In this paper, achievable rates regions are derived for power constrained Gaussian broadcast channel of two users using finite dimension constellations. Various transmission strategies are studied, namely superposition coding (SC) and…

信息论 · 计算机科学 2014-03-24 Zeina Mheich , Florence Alberge , Pierre Duhamel

This paper considers a mobile edge computing-enabled cell-free massive MIMO wireless network. An optimization problem for the joint allocation of uplink powers and remote computational resources is formulated, aimed at minimizing the total…

信息论 · 计算机科学 2022-02-17 Giovanni Interdonato , Stefano Buzzi

We study and analyze coverage region in MIMO communication systems for a multiple-relay network with decode-and-forward (DF) strategy at the relays. Assuming that there is a line-of-sight (LOS) propagation environment for source-relay…

The second-order coding rate of the multiple-input multiple-output (MIMO) quasi-static Rayleigh fading channel is studied. We tackle this problem via an information-spectrum approach and statistical bounds based on recent random matrix…

信息论 · 计算机科学 2016-11-17 Jakob Hoydis , Romain Couillet , Pablo Piantanida

In practical mobile communication engineering applications, surfaces of antenna array deployment regions are usually uneven. Therefore, massive multi-input-multi-output (MIMO) communication systems usually transmit wireless signals by…

信息论 · 计算机科学 2016-04-19 Xiaohu Ge , Ran Zi , Haichao Wang , Jing Zhang , Minho Jo

This paper established a novel multi-input multi-output (MIMO) communication network, in the presence of full-duplex (FD) transmitters and receivers with the assistance of dual-side intelligent omni surface. Compared with the traditional…

信息论 · 计算机科学 2024-08-22 Sisai Fang , Gaojie Chen , Chong Huang , Yue Gao , Yonghui Li , Kai-Kit Wong , Jonathon A. Chambers

Massive multiple-input multiple-output (MIMO) is a transmission technique for cellular systems that uses many antennas to support not-as-many users. Thus far, the performance of massive MIMO has only been examined in finite cellular…

信息论 · 计算机科学 2013-05-13 Tianyang Bai , Robert W. Heath,

This paper provides a theoretical framework for understanding the performance of reconfigurable intelligent surface (RIS)-aided massive multiple-input multiple-output (MIMO) with zero-forcing (ZF) detectors under imperfect channel state…

信息论 · 计算机科学 2021-11-03 Kangda Zhi , Cunhua Pan , Gui Zhou , Hong Ren , Maged Elkashlan , Robert Schober

In this paper we investigate the achievable rate of a system that includes a nomadic transmitter with several antennas, which is received by multiple agents, exhibiting independent channel gains and additive circular-symmetric complex…

信息论 · 计算机科学 2007-10-02 Amichai Sanderovich , Shlomo Shamai , Yossef Steinberg

This paper studies a wireless network consisting of multiple transmitter-receiver pairs sharing the same spectrum where interference is regarded as noise. Previously, the throughput region of such a network was characterized for either one…

信息论 · 计算机科学 2016-12-14 Yirui Cong , Xiangyun Zhou , Rodney A. Kennedy

We prove convexity of the sum-power constrained mean square error (MSE) region in case of two single-antenna users communicating with a multi-antenna base station. Due to the MSE duality this holds both for the vector broadcast channel and…

信息论 · 计算机科学 2008-07-29 Raphael Hunger , Michael Joham

This paper deals with the problem of point-to-point reachability in multi-linear systems. These systems consist of a partition of the Euclidean space into a finite number of regions and a constant derivative assigned to each region in the…

计算机科学中的逻辑 · 计算机科学 2011-06-08 Olga Tveretina , Daniel Funke

In this paper we consider the achievable rate region of the Gaussian Multiple Access Channel (MAC) when suboptimal transmission schemes are employed. Focusing on the two-user MAC and assuming uncoded Pulse Amplitude Modulation (PAM), we…

信息论 · 计算机科学 2011-02-25 Rizwan Ghaffar , Dimitris Toumpakaris , Jungwon Lee