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Channel coding is one of the workhorses of the physical layer, enabling reliable and energy-efficient data transmission. In this article, we highlight the core innovations in channel coding that have been commercialized in wireless mobile communication standards over the past decades, in the context of current and anticipated future requirements. We point ou...

Apr 19, 2024
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Marvin Geiselhart
Institute of Telecommunications, University of Stuttgart, Stuttgart, G...
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Felix Krieg
Institute of Telecommunications, University of Stuttgart, Stuttgart, G...
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Jannis Clausius
Institute of Telecommunications, University of Stuttgart, Stuttgart, G...
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Information theory has driven the information and communication technology industry for over 70 years. Great successes have been achieved in both academia and industry. In theory, polar codes and spatially coupled low-density parity-check (LDPC) codes have achieved the theoretical bound. In practice, capacity-approaching coding schemes such as turbo, polar, ...

Apr 19, 2024
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Wen Tong
Huawei Technologies Canada, Ottawa, ON, Canada

This article puts the spotlight on the receiver front-end (RFE), an integral part of any wireless device that information theory typically idealizes into a mere addition of noise. While this idealization was sound in the past, as operating frequencies, bandwidths, and antenna counts rise, a soaring amount of power is required for the RFE to behave accordingl...

Apr 19, 2024
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Sundeep Rangan
New York University, Brooklyn, NY, USA

5G has expanded the traditional focus of wireless systems to embrace two new connectivity types: ultra-reliable low latency and massive communication. The technology context at the dawn of 6G is different from the past one for 5G, primarily due to the growing intelligence at the communicating nodes. This has driven the set of relevant communication problems ...

Apr 19, 2024
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Federico Chiariotti
University of Padova, Padova, Italy
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Kaibin Huang
The University of Hong Kong, Hong Kong
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In this article, we present our vision for how extremely large aperture arrays, equipped with hundreds or thousands of antennas, can play a major role in future 6G networks by enabling a remarkable increase in data rates through spatial multiplexing of a massive number of data streams to both a single user and many simultaneous users. Specifically, with the ...

Apr 19, 2024
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Parisa Ramezani
KTH Royal Institute of Technology, Stockholm, Sweden
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Alva Kosasih
KTH Royal Institute of Technology, Stockholm, Sweden
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Amna Irshad
KTH Royal Institute of Technology, Stockholm, Sweden
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Emil Björnson
KTH Royal Institute of Technology, Stockholm, Sweden

Significant progress has been made since the research community explicitly started defining a vision for 6th generation network (6G). The goal of the this article is to revisit research challenges in six key technology areas for 6G, summarize some of the main achievements so far and articulate remaining challenges. Research on new spectrum technologies mainl...

Apr 19, 2024
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Peter Vetter
Nokia Bell Labs, Murray Hill, NJ, USA