Agents that reduce work and information overload
Communications of the ACM
Communications of the ACM
Mobile wireless network system simulation
MobiCom '95 Proceedings of the 1st annual international conference on Mobile computing and networking
A hierarchical simulation environment for mobile wireless networks
WSC '95 Proceedings of the 27th conference on Winter simulation
IEEE/ACM Transactions on Networking (TON)
MobiCom '96 Proceedings of the 2nd annual international conference on Mobile computing and networking
IEEE Spectrum
Iterative design of efficient simulations using Maisie
WSC '91 Proceedings of the 23rd conference on Winter simulation
User Interface and Agent Prototyping for Flexible Working
IEEE MultiMedia
The Challenges of Mobile Computing
Computer
Maisie: A Language for the Design of Efficient Discrete-Event Simulations
IEEE Transactions on Software Engineering
Channel assignment schemes for cellular mobile telecommunication systems: A comprehensive survey
IEEE Communications Surveys & Tutorials
Handover and channel assignment in mobile cellular networks
IEEE Communications Magazine
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Wireless communication suffers from many restrictions due to the inherent limitations of wireless media and existing wireless communication protocols. Limited radio frequency spectrum (or bandwidth) is one of the major issues in wireless communication. Wireless multiple access techniques were first developed to enhance channel bandwidth utilisation under limited frequency. Different channel allocation (or channel assignment) schemes have been developed to further increase the utilisation of limited frequency. In this paper we propose a frequency reallocation scheme, message ring-based channel reallocation (MRCR) to improve channel utilisation in wireless communication systems. MRCR uses software agents (known as BS ring agents) to circulate and maintain a message ring that carries bandwidth information. The ring agent is also responsible for borrowing channels and locking the co-channels to avoid interference. MRCR uses channel re-arrangement techniques to improve performance. We present results of simulation studies to demonstrate the effectiveness of the MRCR scheme. Simulation experiments were carried out to evaluate the performance of the MRCR scheme under different mobility environments, namely: (i) high; (ii) medium; and (iii) low. Tests were also conducted under normal and heavy traffic environments to compare the MRCR scheme with other existing schemes. Results show that the MRCR scheme performs better than other schemes under varying mobility and traffic load environments.