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Advances in Large-Scale Systems Simulation Modelling Using Multi-Agent Architectures Optimized with Artificial Intelligence Techniques for Improved Concurrency-Supported Scheduling Mechanisms with Application to Wireless Systems Simulation
Published in S. Kanimozhi Suguna, M. Dhivya, Sara Paiva, Artificial Intelligence (AI), 2021
P.M. Papazoglou, Dimitrios Alexios Karras
Many channel allocation schemes were widely invested in literature with a goal of maximizing reuse of frequency. Channel allocation schemes are classified into three strategies: fixed channel allocation (FCA) (Zhang, M. and Yum, T.S., 1989; Lai, W.K. and Coghill, G.C., 1996; MacDonald, V.H., 1979; Elnoubi, S.M., et al 1982; Xu, Z. and Mirchandani, P.B., 1982); dynamic channel allocation (DCA) (Zhang, M. and Yum, T.S., 1989; Cimini L.J. and Foschini, G.J., 1992; Cox, D.C. and Reudink, D.O., 1973; Del Re, E, Fantacci, R, and Giambene, G. 1996; Kahwa, TJ, and Geor-gans, ND. 1978; Papazoglou, PM, and Karras, DA. 2016; Papazoglou, PM, Karras, DA, and Papademetriou, RC. 2008a; Papazoglou, PM, Kar-ras, DA, and Papademetriou, RC. 2008b; Papazoglou, PM, Karras, DA, and Papademetriou, RC. 2009; Papazoglou, PM, Karras, DA, and Papademetriou, RC. 2011; Papazoglou, PM, Karras, DA, and Papademetriou, RC. 2016; Sivarajan, KN, McEliece, RJ, and Ketchum, JW. 1990; Subramania Sharma, T, and Thazhuthaveetil, MJ. 2001) and HCA (Hybrid Channel Allocation).
Cellular Systems
Published in Lal Chand Godara, Handbook of Antennas in Wireless Communications, 2018
The fixed channel allocation schemes are efficient under uniformly distributed heavy traffic. On the other hand, the dynamic channel allocation schemes perform better under low traffic conditions with varying and nonuniformly distributed loads. The hybrid channel allocation schemes maximize advantages of both these schemes by dividing channels into fixed and dynamic sets. The channels in fixed sets are allocated as per fixed channel allocation strategies and those in the other set are free to be assigned to calls in a cell that has used all its allocated channels. The channels in this set are assigned as per the dynamic channel allocation procedures. Apparently, no optimum ratio of channels are assigned to two sets and the design parameter is dependent on local traffic conditions. More details on these and related issues may be found in Reference [47] and references therein.
SCAN-CogRSG: Secure Channel Allocation by Dynamic Cluster Switching for Cognitive Radio Enabled Smart Grid Communications
Published in IETE Journal of Research, 2022
In Figure 12, the latency of the proposed and existing works is compared for fair allocation scenario. Latency will be high when the allocated channels are not efficient for particular SU, and channel allocation time is large. Our proposed SCAN-CogRSG provides 5 ms to 10 ms of latency, which is acceptable for most of the sensitive applications. However, in CRN-based SG communications, the PU activity is unpredictable and the idle period of a channel is varying. Thus, it is necessary to minimize the latency for all data. In the previous research works, the channel allocation schemes consume large time and the channel allocation ignores major parameters. Thus, the prior works provides large latency when compared with the proposed work.