Understanding the behavior and benefits of contention managers is important for designing transactional memory implementations. Contention manager design is closely tied to other design decisions in a transaction memory implementation, and therefore experiments to compare the behaviors of contention managers are difficult. This paper presents a discrete event simulator that allows researchers t...

Deflection routing is one of the promising approaches to resolve contention in the optical burst switching networks. In the conventional deflection routing scheme, optical bursts may be unable to traverse the route evaluated to select an outgoing link because of the contention at succeeding downstream transit nodes. As a result, the optical bursts may traverse a different route resulting in a l...

This paper proposes a contention-based fair coexistence mechanism among heterogeneous networks that have different transmission power and/or coverage. First, we show that the existing carrier sensing multiple access (CSMA) mechanism, that is a prevailing contention-based protocol, results in significant unfairness in channel access when heterogeneous networks coexist; a system with lower transm...