High performance novel hybrid DCA algorithms for efficient channel allocation in cellular communications modeled and evaluated through a Java simulation system

The limited bandwidth and the user demand for advanced mobile services led to the research of new strategies for efficient channel assignment. The role of a channel assignment scheme is to allocate channels to cells or mobiles in such a way as to minimize the probability that the incoming calls are blocked and the probability that ongoing calls are dropped. Advanced services require significant part of the available bandwidth and so efficient bandwidth management through efficient channel assignment must be applied. Channel assignment strategies can be designed and evaluated using a simulation environment specialized in cellular communications. This paper thoroughly reviews distributed DCA schemes and presents several novel efficient variations (e.g. hybrid variation) suitable for large scale cellular systems. In this paper, a comprehensive simulation system for evaluating channel assignment schemes in a detailed level is also presented.