Distributed space-time block codes for two-hop wireless relay networks

Harshan, J. ; Sundar Rajan, B. (2010) Distributed space-time block codes for two-hop wireless relay networks Journal of Communications, 5 (4). pp. 282-296. ISSN 1796-2021

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Official URL: http://www.jocm.us/index.php?m=content&c=index&a=s...

Related URL: http://dx.doi.org/10.4304/jcm.5.4.282-296

Abstract

Recently, the idea of space-time coding has been applied to wireless relay networks wherein a set of geographically separated relay nodes cooperate to process the received signal from the source and forward them to the destination such that the signal received at the destination appears like a Space-Time Block Code (STBC). Such STBCs (referred to as Distributed Space-Time Block Codes (DSTBCs)) when appropriately designed are known to offer spatial diversity. It is known that different classes of DSTBCs can be designed primarily depending on (i) whether the Amplify and Forward (AF) protocol or the Decode and Forward (DF) protocol is employed at the relays and (ii) whether the relay nodes are synchronized or not. In this paper, we present a survey on the problems and results associated with the design of DSTBCs for the following classes of two-hop wireless relay networks: (i) synchronous relay networks with AF protocols, (ii) asynchronous relay networks with AF protocols (iii) synchronous relay networks with DF protocols and (iv) asynchronous relay Fig. 1. Co-located MIMO channel model networks with DF protocols.

Item Type:Article
Source:Copyright of this article belongs to Engineering and Technology Publishing.
ID Code:108063
Deposited On:08 Dec 2017 10:15
Last Modified:08 Dec 2017 10:15

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