Minimum energy communication over a relay channel
Abbas El Gamal, S. Zahedi · 2003
The paper investigates limits on the energy-per-bit required for reliable communication over AWGN relay channels. Upper and lower bounds on the minimum energy-per-bit that are not tight, but whose ratio is less than 2 are found. Tighter bounds on minimum energy-per-bit are also found for two frequency-division AWGN relay channel models.