A Novel Transmission Scheme for Reliable Cooperative Communication

Cooperative communication scheme can be substituted for multiple-input multiple-output (MIMO) technique when it may not be able to support multiple antennas due to size, cost or hardware limitations. In other words, cooperative communication scheme is an efficient method to achieve spatial diversity without multiple antennas. For satisfaction of rising QoS, we propose a reliable cooperative communication scheme with M-QAM based Dual Carrier Modulation (M-DCM), which can increase diversity gain. Although our proposed scheme is very simple method, it gives us frequency and spatial diversity. Simulation result shows our proposed scheme obtains diversity gain more than the conventional cooperative communication scheme.

Authors:

• Won-Jun Choi
• Seung-Jun Yu
• Jung-In Baik
• Hyoung-Kyu Song

Keywords:

• cooperation
• diversity
• M-DCM
• OFDM.

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