Generalized analysis on diversity-multiplexing trade-off of relay protocols

Wang, Yafeng and Qin, Lin and Xiang, Wei (2013) Generalized analysis on diversity-multiplexing trade-off of relay protocols. Applied Mathematics and Information Sciences, 7 (2L). pp. 511-517. ISSN 1935-0090

Text (Published Version)

Download (722Kb) | Preview


Under the more practical assumption that transmitters have no knowledge of the channel state information (CSI) but the channel distribution information (CDI), this paper examines the diversity-multiplexing trade-off (DMT) of two classes of cooperative protocols, namely, the amplify-and-forward (AF) and decode-and-forward (DF) protocols, with a three-node half-duplex relay network under slow fading. First, analyzing these protocols reveals that each one has its own optimal DMT with a specific time slot ratio, i.e., the ratio between the durations of the slots assigned to base station transmission and that assigned to relay transmission. We then demonstrate that under ideal coding, the incremental decode-and-forward protocol approaches the DMT upper bound when the two slots are of equal length, which outperforms all the other protocols. Furthermore, it is proved that the selective decode-and-forward protocol achieves its optimal performance with a slot assignment ratio of ( p 5+1)=2. In addition, we also find AF, selective AF and incremental AF have no difference from the perspective of DMT.

Statistics for USQ ePrint 24745
Statistics for this ePrint Item
Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: © 2013 NSP. Natural Sciences Publishing.
Faculty/School / Institute/Centre: Historic - Faculty of Engineering and Surveying - No Department
Date Deposited: 08 Feb 2014 00:25
Last Modified: 06 Mar 2018 04:23
Uncontrolled Keywords: signal processing; relay transmission; protocols
Fields of Research : 01 Mathematical Sciences > 0103 Numerical and Computational Mathematics > 010301 Numerical Analysis
09 Engineering > 0906 Electrical and Electronic Engineering > 090609 Signal Processing
10 Technology > 1005 Communications Technologies > 100501 Antennas and Propagation
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
Identification Number or DOI: doi:10.12785/amis/072L20

Actions (login required)

View Item Archive Repository Staff Only