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Millimeter-wave networks have already been successfully rolled out in many countries and now the research direction heads toward new technologies and standards to enable Tbps rates for future sixth-generation (6G) wireless communication…

Information Theory · Computer Science 2023-11-03 Leila Tlebaldiyeva , Sultangali Arzykulov , Khaled M. Rabie , Xingwang Li , Galymzhan Nauryzbayev

This paper studies the application of cooperative techniques for non-orthogonal multiple access (NOMA). More particularly, the fixed gain amplify-and-forward (AF) relaying with NOMA is investigated over Nakagami-$m$ fading channels. Two…

Information Theory · Computer Science 2018-12-19 Xinwei Yue , Yuanwei Liu , Shaoli Kang , Arumugam Nallanathan

The rapid growth of data volume and the accompanying congestion problems over the wireless networks have been critical issues to content providers. A novel technique, termed as coded cache, is proposed to relieve the burden. Through…

Networking and Internet Architecture · Computer Science 2015-04-08 Wei Huang , Sinong Wang , Lianghui Ding , Feng Yang , Wenjun Zhang

In Fixed Wireless Applications (FWA), the Code Division Multiple Access (CDMA) is the most promising candidate for wideband data access. The reason is the soft limit on the number of active mobile devices. Many Fixed Wireless Applications…

Information Theory · Computer Science 2012-12-12 Muhammad Zeeshan , Shoab A Khan , Muhammad Yasir Malik

In a wireless network, the efficiency of scheduling algorithms over time-varying channels depends heavily on the accuracy of the Channel State Information (CSI), which is usually quite ``costly'' in terms of consuming network resources.…

Networking and Internet Architecture · Computer Science 2014-04-01 Wenzhuo Ouyang , Atilla Eryilmaz , Ness B. Shroff

The ability to reliably predict the future quality of a wireless channel, as seen by the media access control layer, is a key enabler to improve performance of future industrial networks that do not rely on wires. Knowing in advance how…

Networking and Internet Architecture · Computer Science 2023-06-16 Gabriele Formis , Stefano Scanzio , Gianluca Cena , Adriano Valenzano

In this paper, we consider the problem of activity detection in grant-free code-domain non-orthogonal multiple access (NOMA). We focus on performing activity detection via subspace methods under a setup where the data and pilot spreading…

Information Theory · Computer Science 2022-09-19 Bashar Tahir , Stefan Schwarz , Markus Rupp

IEEE 802.16 OFDMA (Orthogonal Frequency Division Multiple Access) technology has emerged as a promising technology for broadband access in a Wireless Metropolitan Area Network (WMAN) environment. In this paper, we address the problem of…

Performance · Computer Science 2013-08-15 Abdelali El Bouchti , Said El Kafhali , Abdelkrim Haqiq

The correlation among the content distributed across a cache-aided broadcast network can be exploited to reduce the delivery load on the shared wireless link. This paper considers a two-user three-file network with correlated content, and…

Information Theory · Computer Science 2017-12-06 Parisa Hassanzadeh , Antonia M. Tulino , Jaime Llorca , Elza Erkip

In this paper we provide sufficient conditions for lossy transmission of functions of correlated data over a multiple access channel (MAC). The conditions obtained can be shown as generalized version of Yamamoto's result. We also obtain…

Information Theory · Computer Science 2009-08-11 R Rajesh , Vinod Sharma

We show that the problem of analyzing the outage probability in cellular systems affected by co-channel interference and background noise is mathematically equivalent to the problem of analyzing the wireless information-theoretic security…

Information Theory · Computer Science 2016-11-17 Gerardo Gomez , F. Javier Lopez-Martinez , David Morales-Jimenez , Matthew R. McKay

In this paper, the outage performance of downlink non-orthogonal multiple access (NOMA) is investigated for the case where each user feeds back only one bit of its channel state information (CSI) to the base station. Conventionally,…

Information Theory · Computer Science 2016-05-18 Peng Xu , Yi Yuan , Zhiguo Ding , Xuchu Dai , Robert Schober

Wireless objects equipped with multiple antennas are able to simultaneously transmit multiple packets by exploiting the channel's spatial dimensions. In this paper, we study the benefits of such Multiple Packet Transmission (MPT) approach,…

Networking and Internet Architecture · Computer Science 2013-06-25 Boris Bellalta , Azadeh Faridi , Dirk Staehle , Jaume Barcelo , Alexey Vinel , Miquel Oliver

This paper presents two methods for approximating the performance of coded multicarrier systems operating over frequency-selective, quasi-static fading channels with non-ideal interleaving. The first method is based on approximating the…

Information Theory · Computer Science 2007-07-13 C. Snow , L. Lampe , R. Schober

With the rapid proliferation of smart devices in wireless networks, more powerful technologies are expected to fulfill the network requirements of high throughput, massive connectivity, and diversify quality of service. To this end, rate…

Information Theory · Computer Science 2023-04-12 Huabing Lu , Xianzhong Xie , Zhaoyuan Shi , Hongjian Lei , Nan Zhao , Jun Cai

This paper proposes a unified framework for the effective rate analysis over arbitrary correlated and not necessarily identical multiple inputs single output (MISO) fading channels, which uses moment generating function (MGF) based approach…

Information Theory · Computer Science 2016-12-13 Minglei You , Hongjian Sun , Jing Jiang , Jiayi Zhang

This paper presents a statistical framework for assessing wireless systems performance using hierarchical data mining techniques. We consider WCDMA (wideband code division multiple access) systems with two-branch STTD (space time transmit…

Computational Engineering, Finance, and Science · Computer Science 2007-05-23 Alex Verstak , Naren Ramakrishnan , Kyung Kyoon Bae , William H. Tranter , Layne T. Watson , Jian He , Clifford A. Shaffer , Theodore S. Rappaport

This paper proves an impossibility result for stochastic network utility maximization for multi-user wireless systems, including multiple access and broadcast systems. Every time slot an access point observes the current channel states for…

Optimization and Control · Mathematics 2020-03-18 Michael J. Neely

This paper presents a network layer model for a wireless multiple access system with both persistent and non-persistent users. There is a single access point with multiple identical channels. Each user who wants to send a file first scans a…

Networking and Internet Architecture · Computer Science 2019-09-24 Michael J. Neely

This paper proposes a new communication protocol for a cooperative non-orthogonal multiple access (NOMA) system. In this system, based on users' channel conditions, each two NOMA users are paired to reduce system complexity. In this…

Signal Processing · Electrical Eng. & Systems 2018-03-29 Duc-Dung Tran , Ha-Vu Tran , Dac-Binh Ha , Georges Kaddoum
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