Interference and throughput aware resource allocation for multi‐class D2D in 5G networks
| Autor: | Lilatul Ferdouse, Kaamran Raahemifar, Mohan Markandaier, Waleed Ejaz, Alagan Anpalagan |
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| Rok vydání: | 2017 |
| Předmět: |
Frequency-division multiple access
business.industry Computer science Quality of service Orthogonal frequency-division multiple access 05 social sciences 050801 communication & media studies 020206 networking & telecommunications Throughput 02 engineering and technology Spectral efficiency Subcarrier Computer Science Applications 0508 media and communications Max-min fairness 0202 electrical engineering electronic engineering information engineering Resource allocation Electrical and Electronic Engineering Underlay business Throughput (business) Computer network |
| Zdroj: | IET Communications. 11:1241-1250 |
| ISSN: | 1751-8636 |
| Popis: | This study examines subcarrier and optimal power allocation in orthogonal frequency division multiple access based 5G device-to-device (D2D) networks. To improve spectrum efficiency, D2D users share same subcarriers with the legacy users using underlay approach. In this approach, it is challenging to design an efficient subcarrier and power allocation method for D2D networks which guarantees the quality of service requirements of legacy users. Therefore, the key constraint is to check the interference condition among D2D and legacy users while allocating the same resources to D2D users. In this study, the authors propose a throughput efficient subcarrier allocation (TESA) and geometric water-filling based optimal power allocation (GWFOPA) method for multi-class cellular D2D systems. First, the TESA method selects subcarriers and allocates power equally for D2D users according to their service classes while maintaining interference and data rate constraints. Then, the GWFOPA method is applied to optimise power in a computationally effective way. The objective of TESA and GWFOPA method is to maximise the data rate of each class while maintaining interference constraint and fairness among the D2D users. Finally, the authors present simulation results to evaluate performance of TESA and GWFOPA in terms of throughput, user data rate, and fairness. |
| Databáze: | OpenAIRE |
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