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Wireless Body Area Networks (WBAN) open an interdisciplinary area within Wireless Sensor Networks (WSN) research, with a tremendous impact in healthcare area where sensors are used to monitor, collect and transmit biological parameters of…

Networking and Internet Architecture · Computer Science 2017-02-17 Wafa Badreddine , Maria Potop-Butucaru

The increasing penetration of wearable and implantable devices necessitates energy-efficient and robust ways of connecting them to each other and to the cloud. However, the wireless channel around the human body poses unique challenges such…

Networking and Internet Architecture · Computer Science 2020-06-25 Ali Moin , Arno Thielens , Alvaro Araujo , Alberto Sangiovanni-Vincentelli , Jan M. Rabaey

To answer the challenges put out by the next generation of wireless networks (5G), important research efforts have been undertaken during the last few years to find new waveforms that are better spectrally localized and less sensitive to…

Information Theory · Computer Science 2016-03-30 Quentin Bodinier , Faouzi Bader , Jacques Palicot

Orthogonal frequency-division multiplexing (OFDM) is a promising waveform candidate for future joint sensing and communication systems. It is well known that the OFDM waveform is vulnerable to in-phase and quadrature-phase (IQ) imbalance,…

Signal Processing · Electrical Eng. & Systems 2023-11-17 Oliver Lang , Christian Hofbauer , Moritz Tockner , Reinhard Feger , Thomas Wagner , Mario Huemer

Orbital angular momentum (OAM) has attracted much attention for radio vortex wireless communications due to the orthogonality among different OAM-modes. To maintain the orthogonality among different OAM modes at the receiver, the strict…

Signal Processing · Electrical Eng. & Systems 2024-08-15 Wenchi Cheng , Haiyue Jing , Wei Zhang , Zan Li , Hailin Zhang

This paper proposes a new multi-carrier system, called orthogonal code-based block transmission (OCBT). OCBT applies a time-spreading method with an orthogonal code to have a block signal structure and a windowing procedure to reduce the…

Information Theory · Computer Science 2017-05-03 Hyejin Kim , Insik Jung , Wonsuk Chung , Sooyong Choi , Daesik Hong

The emerging orbital angular momentum (OAM) based wireless communication is expected to be a high spectrum-efficiency communication paradigm to solve the growing transmission data rate and limited bandwidth problem. Academic researchers…

Signal Processing · Electrical Eng. & Systems 2024-07-19 Liping Liang , Wenchi Cheng , Wei Zhang , Hailin Zhang

This work quantifies, for the first time, intersymbol and intercarrier interferences induced by very dispersive channels in OFDM systems. The resulting achievable data rate for \wam{suboptimal} OFDM transmissions is derived based on the…

Signal Processing · Electrical Eng. & Systems 2019-01-25 Wallace Alves Martins , Fernando Cruz-Roldán , Marc Moonen , Paulo Sergio Ramirez Diniz

Recent advances in Micro-Electro-Mechanical Systems (MEMS) technology, integrated circuits, and wireless communication have allowed the realization of Wireless Body Area Networks (WBANs). WBANs promise unobtrusive ambulatory health…

Networking and Internet Architecture · Computer Science 2010-08-04 Sana Ullah , Pervez Khan , Niamat Ullah , Shahnaz Saleem , Henry Higgins , Kyung Sup Kwak

Differential space time block coding (STBC) achieves full spatial diversity and avoids channel estimation overhead. Over highly frequency-selective channels, STBC is integrated with orthogonal frequency division multiplexing (OFDM) to…

Information Theory · Computer Science 2016-12-28 Lei Chen , Ahmed G. Helmy , Guangrong Yue , Shaoqian Li , Naofal Al-Dhahir

A Wireless Body Area Network (WBAN) is a collection of low-power and lightweight wireless sensor nodes that are used to monitor the human body functions and the surrounding environment. It supports a number of innovative and interesting…

Networking and Internet Architecture · Computer Science 2011-02-04 Shahnaz Saleem , Sana Ullah , Kyung Sup Kwak

In wireless ad hoc networks, distributed nodes can collaboratively form an antenna array for long-distance communications to achieve high energy efficiency. In recent work, Ochiai, et al., have shown that such collaborative beamforming can…

Information Theory · Computer Science 2007-07-13 Athina P. Petropulu , Lun Dong , H. Vincent Poor

In modern wireless networks, interference is no longer negligible since each cell becomes smaller to support high throughput. The reduced size of each cell forces to install many cells, and consequently causes to increase inter-cell…

Information Theory · Computer Science 2012-09-19 Hyukjoon Kwon , Jungwon Lee , Inyup Kang

Sixth-generation (6G) wireless communication systems, as stated in the European 6G flagship project Hexa-X, are anticipated to feature the integration of intelligence, communication, sensing, positioning, and computation. An important…

Information Theory · Computer Science 2024-02-16 Eyad Shtaiwi , Ahmed Abdelhadi , Husheng Li , Zhu Han , H. Vincent Poor

In integrated sensing and communications (ISAC), a distinguishing feature of 6G wireless networks, the main challenge lies in integrating the two distinct functions of sensing and communication within the same waveform. In this paper, the…

Signal Processing · Electrical Eng. & Systems 2025-09-30 Henglin Pu , Zhu Han , Athina P. Petropulu , Husheng Li

This work studies the Gaussian interference channel (IC) with a relay, which transmits and receives in a band that is orthogonal to the IC. The channel associated with the relay is thus an out-of-band relay channel (OBRC). The focus is on a…

Information Theory · Computer Science 2015-03-17 Ye Tian , Aylin Yener

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

Orbital angular momentum (OAM) mode multiplexing has the potential to achieve high spectrum-efficiency communications at the same time and frequency by using orthogonal mode resource. However, the vortex wave hollow divergence…

Information Theory · Computer Science 2024-08-05 Ruirui Chen , Wenchi Cheng , Jinyang Lin , Liping Liang

This paper studies the interference broadcast channel comprising multiple multi-antenna Base Stations (BSs), each controlling a beyond diagonal Reconfigurable Intelligent Surface (RIS) and serving multiple single-antenna users. Wideband…

Information Theory · Computer Science 2024-09-09 Konstantinos D. Katsanos , Paolo Di Lorenzo , George C. Alexandropoulos

The spectrum share and open nature of wireless channels enable integrated sensing and communication (ISAC) susceptible to hostile jamming attacks. Due to the intrinsic orthogonality and rich azimuth angle information of orbital angular…

Signal Processing · Electrical Eng. & Systems 2024-06-11 Liping Liang , Wenchi Cheng , Wei Zhang , Zhuohui Yao