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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Constructing space-time codes via expurgation and set partitioning /

Janani, Mohammad, January 2006 (has links)
Thesis (Ph.D.) -- University of Texas at Dallas, 2006 / Includes vita. Includes bibliographical references (leaves 102-110)
2

Turbo and LDPC coding for the AWGN and space-time channel /

Guidi, Andrew Mark. Unknown Date (has links)
The main focus of this thesis is the investigation of a number of different space-time coding scenarios based on predominately the application of turbo codes and low density parity check (LDPC) codes to a multi-antenna system. Both codes structures make use of the BPSK stacking construction that readily applies binary linear codes to the space-time channel while also providing a check on the suitability of the resulting code in order to achieve maximum diversity advantage. The turbo-like codes investigated are based upon the application of a parallel concatenated scheme to directly map the data and parity bits generated by the encoder to one of three possible antennas outputs. It is further highlighted in this case how the interleaver plays a crucial role in determining overall performance as this determines whether the resulting space-time codes achieve maximum diversity advantage or otherwise. Performance results are presented for a number of different constituent codes and interleaver design. The LDPC space-time codes considered herein again are based on satisfying the BPSK stacking construction to ensure full diversity advantage is achieved. The code design is based on a recursive application of the Shur complement in order to devise block based codes that have a resulting parity check matrix that is relatively sparse. A number of various code constructions that satisfy the conditions are then simulated in order to determine performance in both slow and fast fading channel conditions. This thesis also investigates the use of certain non-linear codes termed “chaotic codes” and their application as constituent codes within a parallel concatenated (turbo-like) coding scheme. Performance of such codes is shown to be readily analysed via the use extrinsic information transfer (EXIT) techniques. The modified codes are simulated over an AWGN channel using BPSK modulation for a number of different block lengths. / Thesis (PhDTelecommunications)--University of South Australia, 2006.
3

Cooperative diversity using MIMO systems

Rajagopalan, Ramachandran. January 1900 (has links)
Thesis (M.S.)--West Virginia University, 2006. / Title from document title page. Document formatted into pages; contains ix, 66 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 65-66).
4

Space time coding in MIMO systems /

Xian, Liang. January 1900 (has links)
Thesis (Ph. D.)--Oregon State University, 2007. / Printout. Includes bibliographical references (leaves 100-108). Also available on the World Wide Web.
5

Error-rate evaluation and optimization for space-time codes

Zhang, Zhi, 張治 January 2007 (has links)
published_or_final_version / abstract / Electrical and Electronic Engineering / Doctoral / Doctor of Philosophy
6

Error-rate evaluation and optimization for space-time codes

Zhang, Zhi, January 2007 (has links)
Thesis (Ph. D.)--University of Hong Kong, 2008. / Also available in print.
7

Space-time code designs and fast decoding for MIMO and cooperative communication systems

Shang, Yue. January 2009 (has links)
Thesis (Ph.D.)--University of Delaware, 2008. / Principal faculty advisor: Xiang-Gen Xia, Dept. of Electrical & Computer Engineering. Includes bibliographical references.
8

Differential and coherent detection schemes for space-time block codes/

Oruç, Özgür. Altınkaya, Mustafa Aziz January 2002 (has links) (PDF)
Thesis (Master)--İzmir Institute of Technology, İzmir, 2002 / Includes bibliographical references (leaves. 90-94).
9

A comparison of frequency offset estimation methods in Orthogonal Frequency Division Multiplexing (OFDM) systems /

Karaoglu, Bulent. January 2004 (has links) (PDF)
Thesis (M.S. in Electrical Engineering)--Naval Postgraduate School, Dec. 2004. / Thesis Advisor(s): Roberto Cristi, Murali Tummala. Includes bibliographical references (p. 45-46). Also available online.
10

Simulation performance of multiple-input multiple-output systems employing single-carrier modulation and orthogonal frequency division multiplexing /

Saglam, Halil Derya. January 2004 (has links) (PDF)
Thesis (M.S. in Electrical Engineering)--Naval Postgraduate School, Dec. 2004. / Thesis advisor(s): Murali Tummala, Roberto Cristi. Includes bibliographical references (p. 69-71). Also available online.

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