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.

Item Type:	Refereed Article
Keywords:	wireless relaying networks, imperfect synchronization
Research Division:	Engineering
Research Group:	Electrical and Electronic Engineering
Research Field:	Signal Processing
Objective Division:	Expanding Knowledge
Objective Group:	Expanding Knowledge
Objective Field:	Expanding Knowledge in Engineering
Author:	El Astal, MT (Mr Mohammed El Astal)
Author:	Olivier, JC (Professor JC Olivier)
ID Code:	106770
Year Published:	2015
Web of Science® Times Cited:	1
Deposited By:	Engineering
Deposited On:	2016-02-19
Last Modified:	2017-11-06
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