Design of distributed space-time block code for two-hop cooperative wireless relay networks over frequency selective fading channels
Quoc‐Tuan Vien, Le‐Nam Tran, Ju-Hyup Kim, Een‐Kee Hong, Yong‐Seo Park · 한국통신학회 학술대회논문집 · 2008
This letter proposes a new distributed space time block code (DSTBC) for two-hop cooperative wireless networks over frequency selective fading channels with amplify-and-forward (AF) relaying. The proposed DSTBC is designed to achieve maximal data rate, spatial diversity gain, and decoupling detection of data blocks. These goals are accomplished by allowing each relay to linearly process its received signals to form a column of the code matrix in the conventional space time block codes that were developed for co-located antenna systems. Moreover, the proposed DSTBC also enables the use of frequency domain equalization to reduce receiver complexity.