The aim of our research work in the field of mobile databases is the design, analytical analysis, and simulation of efficient concurrency control protocols for read-only transactions that satisfy various data consistency and currency requirements.

Our research activity focuses on the development of weaker currency control protocols that incorporate both consistency and currency guarantees. To prevent read-only transactions from interfering with concurrent read-write transactions, our protocols exploit multi-versioning. First results of simulation studies show that weaker protocols such as the Multi-version Concurrency Control Protocol with Strict Forward BOT View Consistency guarantees (MVCC-SFBVC) outperform semantically stronger (serializable) but more restrictive protocols.