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The rate maximization for the $K$-user interference channels (ICs) has been investigated extensively in the literature. However, the dual problem of minimizing the error probability with given signal modulations and/or data rates of the…

信息论 · 计算机科学 2014-05-30 Hieu Duy Nguyen , Rui Zhang , Sumei Sun

This work investigates the degrees of freedom (DoF) of the K-user multiple-input single-output (MISO) interference channel (IC) with imperfect delayed channel state information at the transmitters (dCSIT). For this setting, new DoF inner…

信息论 · 计算机科学 2016-11-17 Marc Torrellas , Adrian Agustin , Josep Vidal

In this paper we present an experimental study on the performance of spatial Interference Alignment (IA) in indoor wireless local area network scenarios that use Orthogonal Frequency Division Multiplexing (OFDM) according to the…

We study a new IA strategy which is referred to as "Partial Interference Cancelation-based Interference Alignment" (PIC-IA). Unlike the conventional IA strategy, PIC-IA does not strive to eliminate interference from all users. Instead, it…

信息论 · 计算机科学 2013-04-09 Lingxiang Li , Zhi Chen , Jun Fang

We revisit the massive connectivity challenge by considering the case where no CSI is available at the BS and no precoding is used. In this situation, inter-user interference (IUI) mitigation can only be performed at the user terminal (UT)…

信号处理 · 电气工程与系统科学 2025-04-08 Noor Waqar , Kai-Kit Wong , Chan-Byoung Chae , Ross Murch

Millimeter wave (mmWave) cell-free MIMO achieves an extremely high rate while its beam alignment (BA) suffers from excessive overhead due to a large number of transceivers. Recently, user location and probing measurements are utilized for…

信息论 · 计算机科学 2023-08-17 Cheng Zhang , Leming Chen , Lujia Zhang , Yongming Huang , Wei Zhang

This paper considers a distributed interference avoidance problem employing frequency assignment in the Gaussian interference channel (IC). We divide the common channel into several subchannels and each user chooses the subchannel with less…

信息论 · 计算机科学 2010-03-23 Zhenhai Jing , Baoming Bai , Xiao Ma , Ying Li

There are now several works on the use of the additive inverse Gaussian noise (AIGN) model for the random transit time in molecular communication~(MC) channels. The randomness invariably causes inter-symbol interference (ISI) in MC, an…

信息论 · 计算机科学 2015-09-01 Siavash Ghavami , Raviraj Adve , Farshad Lahouti

A new subcarrier combining technique is proposed for MC -CDMA receiver in mobile Rayleigh fading channel. It exploits the structure formed by repeating spreading sequences of users on different subcarriers to simultaneously suppress…

信息论 · 计算机科学 2011-03-01 Indu Shakya , Falah H. Ali , Elias Stipidis

Interference alignment (IA) was shown effective for interference management to improve transmission rate in terms of the degree of freedom (DoF) gain. On the other hand, orthogonal space-time block codes (STBCs) were widely used in…

信息论 · 计算机科学 2013-04-23 Liangbin Li , Hamid Jafarkhani

Initial access (IA) is a fundamental physical layer procedure in cellular systems where user equipment (UE) detects nearby base station (BS) as well as acquire synchronization. Due to the necessity of using antenna array in millimeter-wave…

信号处理 · 电气工程与系统科学 2019-07-30 Han Yan , Danijela Cabric

Optical wireless communication provides data transmission at high speeds which can satisfy the increasing demands for connecting a massive number of devices to the Internet. In this paper, vertical-cavity surface-emitting(VCSEL) lasers are…

信号处理 · 电气工程与系统科学 2021-11-30 Ahmad Adnan Qidan , Maximo Morales-Cespedes , Taisir El-Gorashi , Jaafar M. H. Elmirghani

This paper investigates the linear precoder design for $K$-user interference channels of multiple-input multiple-output (MIMO) transceivers under finite alphabet inputs. We first obtain general explicit expressions of the achievable rate…

信息论 · 计算机科学 2016-11-18 Yongpeng Wu , Chengshan Xiao , Xiqi Gao , John D. Matyjas , Zhi Ding

This paper studies the achievable rate region of the K-user Gaussian multiple-input single-output interference channel (MISO-IC) with the interference treated as noise, when improper or circularly asymmetric complex Gaussian signaling is…

信息论 · 计算机科学 2013-10-10 Yong Zeng , Rui Zhang , Erry Gunawan , Yong Liang Guan

Communication in Millimeter wave (mmWave) band relies on narrow beams due to directionality, high path loss, and shadowing. One can use beam alignment (BA) techniques to find and adjust the direction of these narrow beams. In this paper, BA…

信息论 · 计算机科学 2022-01-19 Abbas Khalili , Shahram Shahsavari , Mohammad A. Amir Khojastepour , Elza Erkip

We propose an incentive scheme based on intervention to sustain cooperation among self-interested users. In the proposed scheme, an intervention device collects imperfect signals about the actions of the users for a test period, and then…

计算机科学与博弈论 · 计算机科学 2010-12-09 Jaeok Park , Mihaela van der Schaar

Beyond diagonal reconfigurable intelligent surface (BD-RIS) architectures offer superior beamforming gain over conventional diagonal RISs. However, the channel estimation overhead is the main hurdle for reaping the above gain in practice.…

信号处理 · 电气工程与系统科学 2026-02-25 Rui Wang , Junyuan Gao , Shuowen Zhang , Bruno Clerckx , Liang Liu

Interference alignment in the K-user MIMO interference channel with constant channel coefficients is considered. A novel constructive method for finding the interference alignment solution is proposed for the case where the number of…

信息论 · 计算机科学 2016-11-18 Roland Tresch , Maxime Guillaud , Erwin Riegler

In this paper, we propose two secure multiuser multiple-input multiple-output transmission approaches based on interference alignment (IA) in the presence of an eavesdropper. To deal with the information leakage to the eavesdropper as well…

最优化与控制 · 数学 2016-11-17 Kha Hoang Ha , Thanh Tung Vu , Trung Quang Duong , Nguyen-Son Vo

In this paper, we consider the arbitrary MIMO two-way relay channels, where there are $K$ source nodes, each equipped with $M_i$ antennas, for $i=1,2,\cdots,K$, and one relay node, equipped with $N$ antennas. Each source node can exchange…

信息论 · 计算机科学 2016-11-17 Kangqi Liu , Meixia Tao , Dingcheng Yang