Title :
Circuit power considered energy efficiency in Decode-and-Forward relaying
Author :
Chinaei, Mohammad Hossein ; Omidi, M.J. ; Kazemi, Jafar
Author_Institution :
ECE Dept., Isfahan Univ. of Technol., Isfahan, Iran
Abstract :
In this paper we analyze Energy Efficiency (EE) and Spectral Efficiency (SE) in relay based systems. Our system model is based on two data transmitters as sources and one relay node with Decode-and-Forward (DF) scheme. The system can work in two strategies, DF relaying and direct transmission. In addition to transmission power we consider circuit power of nodes in our Power Consumption Model (PCM) and find the best EE-SE for each strategy by optimizing transmission time and power of each node. Simulation results show that SE-EE trade off in DF relaying has better performance than direct transmission. Despite traditional research that shows exponential decreasing of EE with increase in SE, we will show by considering circuit power, EE-SE relation has a cup shape. The best EE will be achieved by optimizing power and time duration of transmission.
Keywords :
decode and forward communication; energy conservation; relay networks (telecommunication); circuit power considered energy efficiency; data transmitters; decode and forward relaying; direct transmission; power consumption model; relay based systems; spectral efficiency; system model; Electronic countermeasures; Energy efficiency; Integrated circuit modeling; Optimization; Power demand; Relays; Transmitters;
Conference_Titel :
Electrical Engineering (ICEE), 2013 21st Iranian Conference on
Conference_Location :
Mashhad
DOI :
10.1109/IranianCEE.2013.6599751
