Abstract-This paper investigates the co-existence of Wi-Fi and LTE in emerging unlicensed frequency bands which are intended to accommodate multiple radio access technologies. WiFi and LTE are the two most prominent access technologies being deployed today, motivating further study of the inter-system interference arising in such shared spectrum scenarios as well as possible techniques for enabling improved co-existence. An analytical model for evaluating the baseline performance of coexisting Wi-Fi and LTE is developed and used to obtain baseline performance measures. The results show that both Wi-Fi and LTE networks cause significant interference to each other and that the degradation is dependent on a number of factors such as power levels and physical topology. The model-based results are partially validated via experimental evaluations using USRP based SDR platforms on the ORBIT testbed. Further, internetwork coordination with logically centralized radio resource management across Wi-Fi and LTE systems is proposed as a possible solution for improved co-existence. Numerical results are presented showing significant gains in both Wi-Fi and LTE performance with the proposed inter-network coordination approach.
In REF , the authors present an analytical model for evaluating the performance of coexistence between LTE and Wi-Fi.
Coordinated Dynamic Spectrum Management of LTE-U and Wi-Fi Networks
2015 IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN)
2015 IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN)
Mathematics Computer Science