Abstract
Recently, the interest in operating long term evolution (LTE) in unlicensed bands (i.e., LTE-U) has increased. However, since LTE does not sense for channel vacancy prior to transmissions, whereas a wireless local area network (WLAN) is based on carrier sensing multiple access, LTE interference severely degrades the performance of WLAN. To maximize the LTE throughput while maintaining fairness between LTE and WLAN, we formulate a joint optimization problem of channel selection and frame scheduling in LTE. As a practical solution of this problem, we propose a low-complexity heuristic algorithm called the sequential operation algorithm (SOA). Evaluation results demonstrate that SOA can achieve an LTE throughput comparable to that of the optimal solution, while maintaining fairness between LTE and WLAN by selecting appropriate channels and conducting effective frame scheduling.
Original language | English |
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Pages (from-to) | 6481-6491 |
Number of pages | 11 |
Journal | IEEE Transactions on Vehicular Technology |
Volume | 67 |
Issue number | 7 |
DOIs | |
Publication status | Published - 2018 Jul |
Bibliographical note
Publisher Copyright:© 1967-2012 IEEE.
Keywords
- LTE-unlicensed (LTE-U)
- Unlicensed bands
- coexistence
- fairness
- throughput
- wireless local area network (WLAN)
ASJC Scopus subject areas
- Automotive Engineering
- Aerospace Engineering
- Electrical and Electronic Engineering
- Applied Mathematics