Using Limited Feedback in Power Allocation Design for a Two-Hop Relay OFDM System

• Published in: IEEE International Conference on Communications (2003) pp. 1 - 6
• Main Authors: Hajiaghayi, M., Min Dong, Ben Liang
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01.06.2009
• Subjects: Array signal processing; Design engineering; Error analysis; Feedback; MIMO; OFDM; Peer to peer computing; Power engineering and energy; Power system relaying; Relays

In this paper, we study power allocation (PA) in a single-relay OFDM system with limited feedback. We propose a PA scheme that uses a codebook of quantized PA vectors designed offline and known to the source, relay, and destination. The destination, which has full knowledge of channel side informati...