Personalized and context-aware services are of high interest for Mobile Network Operators (MNOs) to keep existing and win new subscribers. Although such services are already avail...
Location appears to be one of the most important aspects of context in mobile communication. It is a complex piece of information involving several levels of detail. Location inter...
: Non-repudiation of a mobile payment transaction ensures that when a buyer (B) sends some messages to a seller (S), neither B nor S can deny having participated in this transactio...
— A moving kNN query continuously reports the k nearest neighbors of a moving query point. In addition to the query result, a service provider that evaluates moving queries often...
An undeniable mobile billing system allows a mobile network service provider to bill its subscribers with trustworthy evidences. Chen, Jan and Chen proposed such a billing system b...