Quasi-consistency and Caching with Broadcast Disks Rashmi Srinivasa and Sang Hyuk Son   View Paper (PDF)   Return to Caching and Hoarding Abstract The challenges ensuing from the asymmetric communication capabilities of mobile environments have led to an increased interest in broadcast-based data dissemination. Among the concurrency control (CC) techniques for transactional clients in broadcast environments, BCC-TI has been shown to be more efficient than a traditional technique. We propose two ways of improving CC performance in broadcast environments: caching and a weaker consistency criterion. We demonstrate that caching improves query response time in BCC-TI. We propose a new CC technique called Quasi-TI that enforces a correctness criterion called quasi-consistency useful when serializability is too expensive to enforce. We introduce a new caching scheme (PIT) and study its effects on Quasi-TI's performance. Through simulation, we demonstrate the benefits of the proposed techniques. DiSC'02 © 2003 Association for Computing Machinery