Performance Analysis of Dynamic Spectrum Allocation in Multi-Radio Heterogeneous Networks
作者： Yongjae Kim , Yonghoon Choi , Youngnam Han
DOI: 10.1007/978-3-319-40352-6_13
关键词:
摘要: In heterogeneous networks, multi-radio access technologies (RATs) can coexist for a variety of traffic demands and it is called multi-RAT network. Also, cognitive radio enable to use white space frequency band, thus spectrum resources be dynamically allocated. This paper analyzes an effect (MRA) users, who simultaneously exploit multi-RATs, on network performance where dynamic allocation (DSA) performed. Multi-dimensional Erlang loss (MDEL) model, which based queueing, suitable describe behaviors single users in networks under the performing DSA. Based MDEL extended model proposed investigate MRA users. As increase, blocking probability, utilization, expected processing time user deteriorate, since require multiple at time. Numerical results verify degradation resulted from DSA FSA scenarios.
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