This paper studies the performance and key structural properties of optimum location-based relay selection policy for wireless networks consisting homogeneous Poisson distributed relays. The distribution channel quality indicator at location is obtained. A threshold-based selective feedback proposed discovery with finite average load. It established that total number relays feeding back obeys a...

the aim of this research was to investigate the location and accessibility of urmia sport centers concerning national and international standards. the research was applicable, analytical and descriptive. statistical population consisted of all sport centers of urmia physical education department. statistical sample equaled the statistical population (29 sport centers). data were collected by a ...