Sub-Band and Power Allocation for IoT Cellular Networks in the Presence of Inter-Band Interference
- Authors
- Chae, Sungho; Jeon, Sangwoon; Jeong, Cheol
- Issue Date
- Dec-2018
- Publisher
- Institute of Electrical and Electronics Engineers Inc.
- Citation
- 2018 IEEE Global Communications Conference, GLOBECOM 2018 - Proceedings, pp.1 - 7
- Indexed
- SCIE
SCOPUS
- Journal Title
- 2018 IEEE Global Communications Conference, GLOBECOM 2018 - Proceedings
- Start Page
- 1
- End Page
- 7
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/7915
- DOI
- 10.1109/GLOCOM.2018.8647829
- ISSN
- 1930-529X
- Abstract
- An internet of things (IoT) cellular network is considered in which IoT devices communicate with an IoT base station using IoT sub-bands placed between long-term evolution (LTE) bands. Due to spectral leakage, inter-band interference exists among IoT subbands and also between LTE and IoT bands. It is assumed that the IoT cellular network is responsible for reducing its interference to the LTE network to a certain threshold level. Under such interference regulation to LTE bands, we establish a joint sub-band assignment and power allocation optimization in order to maximize the sum rate of the IoT cellular network. A novel two-stage suboptimal algorithm that sequentially performs sub-band assignment and power control is proposed, reflecting the impact of spectral leakage in its optimization procedure. Simulation results demonstrate that the proposed algorithm considering the impact of spectral leakage outperforms the conventional algorithms without considering spectral leakage. © 2018 IEEE.
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