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Improved signal detection of wireless relaying networks employing space-time block codes under imperfect synchronization

journal contribution
posted on 2023-05-18, 17:14 authored by El Astal, MT, Abu-Hudrouss, AM, Jan OlivierJan Olivier
Deployment of Space-Time Block Code (STBC) over wireless relaying communication networks has been identified as one of the most promising techniques because of its potential to support high-performance and high data-rate for wireless communication technologies of the future. It is called Distributed-STBC (D-STBC) as it uses clients’ nodes as relaying nodes to form a virtual Multiple-Input Multiple-Output (MIMO) channel. However, this requires perfect synchronization among the relaying nodes. Unfortunately, as this is impossible to achieve in real world networks, the structure of the code matrix is compromised causing the channel to appear dispersive. This paper firstly derives a general model of D-STBC systems which will then be used to show the effects of imperfect synchronization on such schemes. Then, it highlights the majority of the schemes used to mitigate the performance degradation due to the asynchronism. In addition, it suggests some schemes that could be considered when conditions of imperfect synchronization exist.

History

Publication title

Wireless Personal Communications

Volume

82

Pagination

533-550

ISSN

0929-6212

Department/School

School of Engineering

Publisher

Kluwer Academic Publ

Place of publication

Van Godewijckstraat 30, Dordrecht, Netherlands, 3311 Gz

Rights statement

© 2014 Springer Science+Business Media

Repository Status

  • Restricted

Socio-economic Objectives

Expanding knowledge in engineering

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