Journal: IEEE Wireless Communications

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Abbreviation

IEEE wirel. commun.

Publisher

IEEE

Journal Volumes

ISSN

1536-1284
1558-0687

Description

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Publications 1 - 6 of 6
  • MIMO-OFDM wireless systems
    Item type: Journal Article
    Bölcskei, Helmut (2006)
    IEEE Wireless Communications
  • Romer, Kay; Mattern, Friedemann (2004)
    IEEE Wireless Communications
  • Abadal, Sergi; Guirado, Robert; Taghvaee, Hamidreza; et al. (2023)
    IEEE Wireless Communications
    The main design principles in computer architecture have recently shifted from a monolithic scaling-driven approach to the development of heterogeneous architectures that tightly co-integrate multiple specialized processor and memory chiplets. In such data-hungry multi-chip architectures, current Networks-in-Package (NiPs) may not be enough to cater to their heterogeneous and fast-changing communication demands. This position article makes the case for wireless in-package networking as the enabler of efficient and versatile wired-wireless interconnect fabrics for massive heterogeneous processors. To that end, the use of graphene-based antennas and transceivers with unique frequency-beam reconfigurability in the terahertz band is proposed. The feasibility of such a wireless vision and the main research challenges toward its realization are analyzed from the technological, communications, and computer architecture perspectives.
  • Sarieddeen, Hadi; Jemaa, Hakim; Tarboush, Simon; et al. (2024)
    IEEE Wireless Communications
    Recent advances in electronic and photonic technologies have allowed efficient signal generation and transmission at terahertz (THz) frequencies. However, as the gap in THz-operating devices narrows, the demand for terabit-per-second (Tb/s)-achieving circuits is increasing. Translating the available hundreds of gigahertz (GHz) of bandwidth into a Tb/s data rate requires processing thousands of information bits per clock cycle at state-of-theart clock frequencies of digital baseband processing circuitry of a few GHz. This article addresses these constraints and emphasizes the importance of parallelization in signal processing, particularly for channel code decoding. By leveraging structured sub-spaces of THz channels, we propose mapping bits to transmission resources using shorter codewords, extending parallelizability across all baseband processing blocks. THz channels exhibit quasi-deterministic frequency, time, and space structures that enable efficient parallel bit mapping at the source and provide pseudo-soft bit reliability information for efficient detection and decoding at the receiver.
  • Jiang, Daniel; Taliwal, Viias; Meier, Andreas; et al. (2006)
    IEEE Wireless Communications
  • Lenders, Vincent; Wagner, Jörg; Heimlicher, Simon; et al. (2008)
    IEEE Wireless Communications
    A great deal of research has been done during the past few years in the area of wireless selforganizing networks. Generally, this research has been supported by either simulation or theoretical analysis, both relying on strong assumptions. However, a key point in coupling research and real-life applications is to understand how realworld conditions impact practical networking aspects. To gain more realistic insights, we deploy an indoor IEEE 802.11 mobile ad hoc network comprising 20 PDAs carried by volunteers for one week. In a subsequent analysis, we explore the impact of mobility and interference on the observed network behavior. A major finding of our analysis is that mobility is the most dominant cause of link failure for links with a long lifetime, whereas other causes (unrelated to mobility) are responsible for the breakage of links with short lifetimes. This inherent property could be used by network protocols in self-organizing networks to optimize link or route repair decisions depending on the age of a link at the time it fails.
Publications 1 - 6 of 6