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Next-generation 802.11ax WLANs will make extensive use of multi-user communications in both downlink (DL) and uplink (UL) directions to achieve high and efficient spectrum utilization in scenarios with many user stations per access point.…

Networking and Internet Architecture · Computer Science 2018-06-06 Boris Bellalta , Katarzyna Kosek-Szott

In this study, we compare the single-carrier (SC) waveform adopted in IEEE 802.11ad and unique word discrete Fourier transform spread orthogonal frequency division multiplexing (UW DFT-s-OFDM) waveform. We provide equivalent representations…

Information Theory · Computer Science 2018-01-30 Alphan Sahin , Rui Yang , Frank La Sita , Robert L. Olesen

IEEE 802.11p standard defines wireless technology protocols that enable vehicular transportation and manage traffic efficiency. A major challenge in the development of this technology is ensuring communication reliability in highly dynamic…

Information Theory · Computer Science 2022-01-19 Abdul Karim Gizzini , Marwa Chafii , Ahmad Nimr , Raed M. Shubair , Gerhard Fettweis

In-Band Full-Duplex (IBFD) is a technique that enables a wireless node to simultaneously transmit a signal and receive another on the same assigned frequency. Thus, IBFD wireless systems can provide up to twice the channel capacity compared…

Networking and Internet Architecture · Computer Science 2020-06-22 Murad Murad , Ahmed M. Eltawil

Wireless Body Area Networks (WBAN) has emerged as a key technology to provide real-time health monitoring of a patient and diagnose many life threatening diseases. WBAN operates in close vicinity to, on, or inside a human body and supports…

Networking and Internet Architecture · Computer Science 2011-02-22 Kyung Sup Kwak , Sana Ullah , Niamat Ullah

The capacity scaling of a Wi-Fi network with fixed transmit power is investigated. The 802.11 MAC appears to impose a hard limit on the area capacity by enforcing single transmissions in overlapped cell coverage areas. However due to the…

Networking and Internet Architecture · Computer Science 2016-12-20 Jonathan Ling , Howard Huang , Reinaldo Valenzuela

WiFi's popularity has led to crowded scenarios composed of many Access Points (AP) and clients, often operating on overlapping channels, producing interference that gravely degrades performance. This misallocation of resources is often the…

Networking and Internet Architecture · Computer Science 2016-07-28 Luis Sanabria-Russo , Boris Bellalta , Nicolò Facchi , Francesco Gringoli

The wide-band code division multiple access (WCDMA) based 3G and beyond cellular mobile wireless networks are expected to provide a diverse range of multimedia services to mobile users with guaranteed quality of service (QoS). To serve…

Networking and Internet Architecture · Computer Science 2010-07-15 K. Ayyappan , R. Kumar

The traditional TCP congestion control mechanism encounters a number of new problems and suffers a poor performance when the IEEE 802.11 MAC protocol is used in multihop ad hoc networks. Many of the problems result from medium contention at…

Networking and Internet Architecture · Computer Science 2010-02-09 Mahendra kumar. S , Senthil Prakash. K

Considering the comfortably establishing ad hoc networks, the use of this type of network is increasing day to day. On the other side, it is predicted that using multimedia applications will be more public in these network. As it is known,…

Networking and Internet Architecture · Computer Science 2012-03-16 Xiaodong Hu , Seyed Hossein Hosseini Nazhad , Mitra Ganguly

The design of Medium Access Control (MAC) protocols for wireless sensor networks (WSNs) has been conventionally tackled by assuming battery-powered devices and by adopting the network lifetime as the main performance criterion. While WSNs…

Information Theory · Computer Science 2016-11-17 Fabio Iannello , Osvaldo Simeone , Umberto Spagnolini

The multi-link operation (MLO) is a new feature proposed to be part of the IEEE 802.11be Extremely High Throughput (EHT) amendment. Such feature represents a paradigm shift towards multi-link communications, as nodes will be allowed to…

Networking and Internet Architecture · Computer Science 2022-01-20 Álvaro López-Raventós , Boris Bellalta

new generation of Wireless Local Area Networks (WLANs) will make its appearance in the market in the forthcoming years based on the amendments to the IEEE 802.11 standards that have recently been approved or are under development. Examples…

Networking and Internet Architecture · Computer Science 2021-09-27 Boris Bellalta , Luciano Bononi , Raffaele Bruno , Andreas Kassler

Next-generation wireless networks will provide users ubiquitous low-latency computing services using devices at the network edge, called mobile edge computing (MEC). The key operation of MEC, mobile computation offloading (MCO), is to…

Information Theory · Computer Science 2018-05-31 Seung-Woo Ko , Kaifeng Han , Kaibin Huang

Wireless interconnection has emerged as an energy efficient solution to the challenges of multi-hop communication over the wireline paths in conventional Networks-on-Chips (NoCs). However, to ensure the full benefits of this novel…

Networking and Internet Architecture · Computer Science 2018-09-24 Naseef Mansoor , Abhishek Vashist , M Meraj Ahmed , Md Shahriar Shamim , Syed Ashraf Mamun , Amlan Ganguly

In September 2020, the Broadband Forum published a new industry standard for measuring network quality. The standard centers on the notion of quality attenuation. Quality attenuation is a measure of the distribution of latency and packet…

Networking and Internet Architecture · Computer Science 2021-02-01 Bjørn Ivar Teigen , Neil Davies , Kai Olav Ellefsen , Tor Skeie , Jim Torresen

In order to utilize network resources and provide a more reliable delivery of information, multipath routing algorithms are used with a higher priority than single path routing. But providing the quality of service (QoS) requirements while…

Networking and Internet Architecture · Computer Science 2014-12-09 Zahra Vali , Massoud Reza Hashemi , Neda Moghim

Last year, IEEE 802.11 Extremely High Throughput Study Group (EHT Study Group) was established to initiate discussions on new IEEE 802.11 features. Coordinated control methods of the access points (APs) in the wireless local area networks…

Signal Processing · Electrical Eng. & Systems 2019-05-20 Kota Nakashima , Shotaro Kamiya , Kazuki Ohtsu , Koji Yamamoto , Takayuki Nishio , Masahiro Morikura

With increasing density and heterogeneity in unlicensed wireless networks, traditional MAC protocols, such as carrier-sense multiple access with collision avoidance (CSMA/CA) in Wi-Fi networks, are experiencing performance degradation. This…

Networking and Internet Architecture · Computer Science 2024-06-05 Jiantao Xin , Wei Xu , Bin Cao , Taotao Wang , Shengli Zhang

Multi-access edge computing (MEC) is viewed as an integral part of future wireless networks to support new applications with stringent service reliability and latency requirements. However, guaranteeing ultra-reliable and low-latency MEC…

Systems and Control · Electrical Eng. & Systems 2022-01-26 Arian Ahmadi , Omid Semiari , Mehdi Bennis , Merouane Debbah