We introduce relaying utilization statistical metrics to quantify the contribution of a relay node to the overall relaying process in cooperative diversity systems. Motivated by the second order statistics of the relay fading channel, the following metrics are defined: i) the average relaying selection rate, ii) the average relaying utilization time, and iii) the average relaying waiting time. These metrics are important for the cooperative systems' design, especially for applications where power consumption and delay are major concerns. As an application, we present exact analytical expressions of these parameters in an amplify-andforward relaying system with selection diversity and diamond topology over Rayleigh fading channels.
|Title of host publication||ISWPC 2010 - IEEE 5th International Symposium on Wireless Pervasive Computing 2010|
|Number of pages||5|
|Publication status||Published - 2010|
|Event||IEEE 5th International Symposium on Wireless Pervasive Computing 2010, ISWPC 2010 - Modena, Italy|
Duration: 5 May 2010 → 7 May 2010
|Conference||IEEE 5th International Symposium on Wireless Pervasive Computing 2010, ISWPC 2010|
|Period||5/05/10 → 7/05/10|