We study a spectrum sharing problem in an unlicensed band where multiple systems coexist and interfere with each other. Due to asymmetries and selfish system behavior, unfair and...
A currency exchange system is introduced for a multi-currency electronic money trial, in which smartcardbased electronic moneys (two currencies) are circulated over the Internet. ...
Researches on the wireless mesh network in which access points (APs) of a wireless LAN are connected by an ad-hoc networks are recently drawing much attention. In the wireless mes...
Most congestion control algorithms try to emulate processor sharing (PS) by giving each competing flow an equal share of a bottleneck link. This approach leads to fairness, and pr...
Abstract. This work presents a new privacy primitive called “Traceable Signatures”, together with an efficient provably secure implementation. To this end, we develop the unde...