1. A method, comprising: sending a service request to a first service provider; sending a service request to a second service provider, the second service provider being different from the first service provider; receiving information associated with a distance-sensitive communication link of the first service provider, the information associated with the distance-sensitive communication link of the first service provider being received in response to the service request sent to the first service provider; receiving information associated with a distance-sensitive communication link of the second service provider, the information associated with the distance-sensitive communication link of the second service provider being received in response to the service request sent to the second service provider; and outputting information based on the information associated with the distance-sensitive communication link of the first service provider and the information associated with the distance-sensitive communication link of the second service provider.