English
Related papers

Related papers: Distributed Interference Alignment with Low Overhe…

200 papers

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…

Information Theory · Computer Science 2016-11-17 Marc Torrellas , Adrian Agustin , Josep Vidal

Slotted ALOHA (SA) algorithms with Successive Interference Cancellation (SIC) decoding have received significant attention lately due to their ability to dramatically increase the throughput of traditional SA. Motivated by increased density…

Information Theory · Computer Science 2017-06-30 Aleksandar Mastilovic , Dejan Vukobratovic , Dusan Jakovetic , Dragana Bajovic

Cellular systems that employ time division duplexing (TDD) transmission are good candidates for implementation of interference alignment (IA) in the downlink since channel reciprocity enables the estimation of the channel state by the base…

Information Theory · Computer Science 2013-02-06 Mohsen Rezaee , Maxime Guillaud , Fredrik Lindqvist

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…

Signal Processing · Electrical Eng. & Systems 2019-07-30 Han Yan , Danijela Cabric

ALOHA-type protocols became a popular solution for distributed and uncoordinated multiple random access in wireless networks. However, such distributed operation of the Medium Access Control (MAC) layer leads to sub-optimal utilization of…

Information Theory · Computer Science 2016-06-08 G. Interdonato , S. Pfletschinger , F. Vazquez-Gallego , J. Alonso-Zarate , G. Araniti

Discrete radio resource management problems in dense wireless networks are naturally cast as quadratic unconstrained binary optimization (QUBO) programs but are difficult to solve at scale. We investigate a quantum-classical approach based…

Quantum Physics · Physics 2026-02-10 Kuan-Cheng Chen , Hiromichi Matsuyama , Wei-hao Huang , Yu Yamashiro

While interference alignment schemes have been employed to realize the full multiplexing gain of $K$-user interference channels, the analyses performed so far have predominantly focused on the case when global channel knowledge is available…

Information Theory · Computer Science 2009-12-01 Rajesh T Krishnamachari , Mahesh K Varanasi

Future wireless standards such as 5G envision dense wireless networks with large number of simultaneously connected devices. In this context, interference management becomes critical in achieving high spectral efficiency. Orthogonal…

Information Theory · Computer Science 2015-04-14 Subhashini Krishnasamy , Urs Niesen , Piyush Gupta

We focus on interference mitigation and energy conservation within a single wireless body area network (WBAN). We adopt two-hop communication scheme supported by the the IEEE 802.15.6 standard (2012). In this paper, we propose a dynamic…

Networking and Internet Architecture · Computer Science 2016-11-03 Mohamad Jaafar Ali , Hassine Moungla , Ahmed Mehaoua , Yong Xu

A constant K-user interference channel in which the users are not symbol-synchronous is considered. It is shown that the asynchronism among the users facilitates aligning interfering signals at each receiver node while it does not affect…

Information Theory · Computer Science 2015-03-17 Mehdi Torbatian , Hossein Najafi , Mohamed Oussama Damen

Spatial interference alignment among a finite number of users is proposed as a technique to increase the probability of successful transmission in an interference limited clustered wireless ad hoc network. Using techniques from stochastic…

Information Theory · Computer Science 2010-01-14 R. Tresch , M. Guillaud

With the rapid expansion of low-altitude economy (LAE) services and the growing demand for integrated sensing and communication (ISAC) in air-ground networks, reliable direction-of-arrival (DOA) estimation has become essential for both…

Signal Processing · Electrical Eng. & Systems 2026-04-02 Ye Tian , Tuo Wu , Jintao Wu , He Xu , Yuanjun Shen , Xianfu Lei , Kin-Fai Tong

We show that the maximization of the sum degrees-of-freedom for the static flat-fading multiple-input multiple-output (MIMO) interference channel is equivalent to a rank constrained rank minimization problem (RCRM), when the signal spaces…

Information Theory · Computer Science 2015-03-17 Dimitris S. Papailiopoulos , Alexandros G. Dimakis

This research paper delves into interference mitigation within Low Earth Orbit (LEO) satellite constellations, particularly when operating under constraints of limited radio environment information. Leveraging cognitive capabilities…

This chapter presents joint interference suppression and power allocation algorithms for DS-CDMA and MIMO networks with multiple hops and amplify-and-forward and decode-and-forward (DF) protocols. A scheme for joint allocation of power…

Information Theory · Computer Science 2013-01-28 Patrick Clarke , Rodrigo C. de Lamare

In this paper, the $K$-user interference channel with secrecy constraints is considered with delayed channel state information at transmitters (CSIT). We propose a novel secure retrospective interference alignment scheme in which the…

Information Theory · Computer Science 2020-01-08 Mohamed Seif , Ravi Tandon , Ming Li

In this paper, we consider the problem of maximizing the weighted sum energy efficiency (WS-EE) for multi-input single-output (MISO) interference channels (ICs) which is well acknowledged as general models of heterogeneous networks…

Information Theory · Computer Science 2015-12-17 Pan Cunhua , Xu Wei , Wang Jiangzhou , Ren Hong , Zhang Wence , Huang Nuo , Chen Ming

The evolution of mobile networks towards user-centric cell-free distributed Massive MIMO configurations requires the development of novel signal processing techniques. More specifically, digital precoding algorithms have to be designed or…

Signal Processing · Electrical Eng. & Systems 2025-11-10 Emiel Vanspranghels , Raquel Marina Noguera Oishi , Franco Minucci , Sofie Pollin

A simple channel state information (CSI) feedback scheme is proposed for interference alignment (IA) over the K-user constant Multiple-Input-Multiple-Output Interference Channel (MIMO IC). The proposed technique relies on the identification…

Information Theory · Computer Science 2015-02-17 Mohsen Rezaee , Maxime Guillaud

This paper considers a $K$-user multiple-input-multiple-output (MIMO) interference channel (IC) where 1) the channel state information obtained by the transmitters (CSIT) is completely outdated, and 2) the number of transmit antennas at…

Information Theory · Computer Science 2016-05-06 Chenxi Hao , Bruno Clerckx