An Adaptive Cell Selection Scheme for 5G Heterogeneous Ultra-Dense Networks
| Autor: | Mohammed Arafah, Ibtihal Ahmed Alablani |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
3GPP cellular networks
General Computer Science Computer science Distributed computing Throughput 02 engineering and technology cell selection small cells 01 natural sciences Base station cone angle Telecommunications link 0202 electrical engineering electronic engineering information engineering Femtocell General Materials Science Electrical and Electronic Engineering handover 010401 analytical chemistry General Engineering 020206 networking & telecommunications Spectral efficiency 0104 chemical sciences TK1-9971 Handover Cellular network Electrical engineering. Electronics. Nuclear engineering 5G |
| Zdroj: | IEEE Access, Vol 9, Pp 64224-64240 (2021) |
| ISSN: | 2169-3536 |
| Popis: | Fifth-generation (5G) cellular networks are a promising technology to meet the rapid growth in wireless traffic. Small cells are critical in fulfilling the requirements of 5G networks. A heterogeneous ultra-dense network (HUDN) is an enabling technology consisting of several types of small cells to enhance the performance of 5G networks effectively. A critical issue of HUDN is the cell selection method because the traditional technique for cell selection is inapplicable in such a network. This study proposes a novel adaptive cell selection (ADA-CS) scheme. It adapts to various characteristics of HUDNs and vehicle movements. It performs six phases to select the best base station with which to be associated. Simulation results show that, with low- and medium-speed vehicles, the ADA-CS scheme outperforms the traditional protocol in terms of the average number of handovers by 42.39%. In addition, it is superior to some relevant recent schemes by up to 36.53%. The adaptation feature of the proposed protocol provides additional improvements regarding the average number of handovers with high-speed vehicles. Therefore, it achieves superiority in terms of the average number of handover failures and unnecessary handovers. In addition, the ADA-CS scheme enhances the average achievable downlink data rates and spectral efficiency per vehicle by 3.98% and 2.79% compared with the traditional and the relevant recent schemes. |
| Databáze: | OpenAIRE |
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