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Terahertz Band Communications: System Architecture and Physical Layer Solutions
Başlık:
Terahertz Band Communications: System Architecture and Physical Layer Solutions
Yazar:
Thawdar, Ngwe, author.
ISBN:
9780438049369
Yazar Ek Girişi:
Fiziksel Tanımlama:
1 electronic resource (97 pages)
Genel Not:
Source: Dissertation Abstracts International, Volume: 79-10(E), Section: B.
Advisors: Dimitris A. Pados Committee members: Stella Batalama; Nick Mastronarde; Weifeng Su.
Özet:
Growing demand for wireless spectrum has motivated research and development in underutilized or unused frequency bands such as the Terahertz frequencies (0.1-10 THz). With tens to hundreds of GHz-wide available bandwidth, the THz band can theoretically enable ultra high-bandwidth applications, such as virtual-reality video. The main challenges in THz-band communications are severe path loss caused by atmospheric absorption and low transmission power output due to small antenna size. In this dissertation, we propose a novel system architecture and algorithms to overcome these challenges and extend the effective transmission range of THz-band communications. First, we present a novel graphene-based plasmonic phased-array architecture where THz signals are directly generated and manipulated to form sharp beams. Next, we describe and propose a phase-only beamformer that maximizes the signal-to-interference ratio (SINR) and present a state-of-the-art polynomial-time approximate optimization algorithm. Then, we shift our focus to the problem of beam blockage and present a novel cooperative relaying system to extend transmission range as well as improve signal reception quality. Finally, for multimedia applications of THz-band communications (e.g. 3-D virtual reality content) we present a data embedding scheme that can augment the data rate further, while providing real-time media multiplexing capabilities and data confidentiality/security.
Notlar:
School code: 0656
Konu Başlığı:
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Yer Numarası | Demirbaş Numarası | Shelf Location | Lokasyon / Statüsü / İade Tarihi |
---|---|---|---|
XX(681969.1) | 681969-1001 | Proquest E-Tez Koleksiyonu | Arıyor... |
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