Effect of relay locations in cooperative networks

Cooperative networks have been appreciated for their spatial diversity benefits in wireless communications. In this paper, we will explore the error performance of cooperative networks depending on the relay locations. Both decode-and-forward (DF) and amplify-and-forward (AF) relaying protocols are...

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Bibliographic Details
Main Authors: Woong Cho, Hyun Seo Oh, Dong Yong Kwak
Format: Conference Proceeding
Language:English
Subjects:
Cooperative systems
Decoding
error analysis
MIMO
MIMO systems
Modulation coding
Performance analysis
Phase shift keying
Protocols
Relays
Resource management
Signal representations
Wireless communication
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Summary:Cooperative networks have been appreciated for their spatial diversity benefits in wireless communications. In this paper, we will explore the error performance of cooperative networks depending on the relay locations. Both decode-and-forward (DF) and amplify-and-forward (AF) relaying protocols are considered with an arbitrary number of relays. To provide simple transceiver structure, differential modulation scheme is adopted for both protocols. The effect of relay locations is investigated by considering the number of relays and transmit energy including energy optimization. We show that there exists a common point where the error performance of both protocols coincides. Based on these results, we can achieve the improvement in error performance by choosing the relaying protocol depending on relay locations.
DOI:10.1109/WIRELESSVITAE.2009.5172540