A Cooperative Transmission Strategy using Hierarchical Modulation

In this paper, a novel forward link cooperation scheme using hierarchical modulation is proposed. We define a cooperative unit cell as a unit which includes base-station (BS), fixed relay-station (FRS) and two types of mobile-station (MS) being the relay-assisted mobile-station (RAMS) and the non-re...

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Bibliographic Details
Published in2008 4th International Conference on Wireless Communications, Networking and Mobile Computing pp. 1 - 4
Main Authors Sunyoung Lee, Sangjoon Park, Keumchan Whang
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.10.2008
Subjects
Analytical models
Communication networks
Mobile antennas
Mobile communication
Modulation coding
Performance analysis
Protection
Protective relaying
Relays
Throughput
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Summary:In this paper, a novel forward link cooperation scheme using hierarchical modulation is proposed. We define a cooperative unit cell as a unit which includes base-station (BS), fixed relay-station (FRS) and two types of mobile-station (MS) being the relay-assisted mobile-station (RAMS) and the non-relay-assisted mobile-station (NRAMS). We describe how to exploit the hierarchical modulation for the proposed cooperation between BS-FRS-RAMS link and BS-NRAMS link in the unit cell. The proposed scheme yields an improved throughput due to the characteristics of hierarchical modulation such as simultaneous transmission and multi-level protection layer. Simulation results and simple throughput analysis show that the proposed cooperation scheme outperforms the conventional cooperative and non-cooperative communication schemes with respect to the throughput performance.
ISBN:9781424421077
1424421071
ISSN:2161-9646
DOI:10.1109/WiCom.2008.26