Title :
Area spectral efficiency of cooperative network with DF and AF relaying
Author :
Lei Zhang ; Hong-Chuan Yang ; Hasna, Mazen O.
Author_Institution :
Dept. of Elec.& Comp. Eng., Univ. of Victoria, Victoria, BC, Canada
Abstract :
Most performance metrics for cooperative networks focus on the qualification of either spectrum efficiency or link reliability, without considering the spatial effect of radio transmission. Area spectral efficiency (ASE) was first introduced to qualify the spatial spectral utilization efficiency of cellular systems. In this paper, we generalize the definition of ASE and investigate this performance metric in a three-node cooperative network with decode-and-forward (DF) and amplify-and-forward (AF) relaying. We derive the mathematical expression of ASE with the consideration of path-loss and fading effects. We show through selected numerical examples that ASE provides a new perspective on the spectrum utilization efficiency and transmission power design.
Keywords :
amplify and forward communication; cellular radio; cooperative communication; decode and forward communication; radio links; radio spectrum management; telecommunication network reliability; AF relaying; ASE; DF relaying; amplify-and-forward relaying; area spectral efficiency; cellular system; decode-and-forward relaying; fading effect; link reliability; mathematical expression; path-loss effect; radio transmission; spatial spectral utilization efficiency; spectrum efficiency; spectrum utilization efficiency; three-node cooperative network; transmission power design; Cooperative systems; Measurement; Protocols; Rayleigh channels; Relays; Signal to noise ratio; area spectral efficiency; cooperative network; relay;
Conference_Titel :
Signal & Information Processing Association Annual Summit and Conference (APSIPA ASC), 2012 Asia-Pacific
Conference_Location :
Hollywood, CA
Print_ISBN :
978-1-4673-4863-8
