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This paper analyzes the capacity and overhead of using the IEEE 802.16e worldwide interoperability for microwave access ("WiMAX") for last mile wireless backhaul transport. It first analyzes the WiMAX overhead size using 802.16e WiMAX as backhaul. Second, both WiMAX backhaul downlink and uplink capacity analysis are presented. Lastly, an EVRC VoIP bearer traffic efficiency analysis in an...
In this paper, genetic algorithm (GA) was applied to orthogonal variable spreading factor (OVSF) code tree reassignment problem with adaptive population size, which is constructed according to existing OVSF code tree density. In order to improve the ability of GA, we employ so-called "dominance & diploidy" structure to adapt to changing traffic conditions. Simulation results show that...
Wireless mesh networks (WMNs) are evolving to be the key technology of the future. They aim to provide broadband wireless Internet service to a large community of users by exploiting multi-hop wireless communications between access points thus replacing wired infrastructure. However, in multi-hop networks, flows spanning multiple hops suffer from extremely low throughputs compared to flows traversing...
Wireless ad hoc networks represent a powerful telecommunication infrastructure that is being exploited for enabling general wireless networking connectivity. However, a wide deployment of wireless ad hoc networks relies on system architectures able to provide energetic optimization, high channel utilization, support for real time traffic, etc. In such a context, recently a collision free MAC protocol...
An integrated artificial intelligence optimised cellular radio channel allocation and call dropping algorithm is presented. The components of the system comprise a new genetic algorithm (GA) based channel allocation scheme, and a novel application of fuzzy logic to call dropping technique. The new method is compared to both random allocation and to a conventional allocation approach. The results show...
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